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Cheap flights from London Heathrow Airport to Seattle from £286

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 6/6. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
LHR — SEA
25 May — 1 Jun1
1 adult
Sat 25/5
Sat 1/6

The best prices from London Heathrow to Seattle/Tacoma Intl are usually found in November or February, booked 48 days in advance, depart on a Wednesday or Tuesday and return on a Wednesday

Cheap flight deals from Heathrow to Seattle

Discover tips and strategies to find the most affordable flight options for your journey from Heathrow (LHR) to Seattle (SEA). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 20 May 2024.

Popular in

July

Cheapest in

November

Round-trip from

£454

One-way from

£313
High demand for flights, 23% potential price rise
Search Deals
Best time to find cheap flights, 16% potential price drop
Search Deals
From London Heathrow to Seattle/Tacoma Intl
Search Deals
One-way flight from London Heathrow to Seattle/Tacoma Intl
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What is the cheapest day to fly round-trip from London Heathrow Airport to Seattle?

Users have found that flying from London Heathrow Airport to Seattle on a Saturday typically leans towards higher prices. However, this doesn’t mean you still can’t find a deal. Flexibility with other aspects of your flight can still land a great price for your trip.

How far in advance should I book a flight from London Heathrow Airport to Seattle?

Find a great deal and save up to 35% by booking at least 44 days prior to your desired departure date, rather than waiting until the week of travel. According to our data, there are a number of flights available from London Heathrow Airport to Seattle within the next two weeks, with the cheapest ticket starting at £531.

What is the cheapest month to fly from London Heathrow Airport to Seattle?

Due to multiple factors, expect to potentially pay more when booking in July. For low rates, November can be a great choice for travel to Seattle. Flights to Seattle from London Heathrow Airport in November are about £547 on average during November, but can be found for as low as £301.

When is the cheapest time to fly from London Heathrow Airport to Seattle (LHR - SEA)?

It’s typically best to fly out from London Heathrow Airport to Seattle in the evening. Doing so could potentially save you 6% on the flight price compared to flying in the afternoon, which is usually more expensive.

Cheap Icelandair flights from Heathrow to Seattle

Explore cheap flight options specifically provided by Icelandair for the route between Heathrow and Seattle. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 835,519 searches. Data last updated 20 May 2024.
Take a peek at the cheapest Icelandair flights we've detected travelling from London to Seattle. Make sure to check back often as deals are often changing.
Wed 4/913:05LHR - SEA
1 stop15h 30mIcelandair
Wed 18/918:55SEA - LHR
1 stop17h 25mIcelandair
Deal found 18/5£398
Fri 4/1013:05LHR - SEA
1 stop15h 30mIcelandair
Thu 10/1015:50SEA - LHR
1 stop12h 05mIcelandair
Deal found 18/5£413
Tue 10/913:05LHR - SEA
1 stop12h 50mIcelandair
Thu 19/918:55SEA - LHR
1 stop17h 25mIcelandair
Deal found 19/5£418
Mon 2/921:25LHR - SEA
1 stop21h 55mIcelandair
Sat 14/918:55SEA - LHR
1 stop17h 25mIcelandair
Deal found 18/5£419
Thu 5/913:10LHR - SEA
1 stop30h 10mIcelandair
Mon 23/918:55SEA - LHR
1 stop17h 25mIcelandair
Deal found 18/5£420
Sat 7/921:25LHR - SEA
1 stop21h 55mIcelandair
Sat 21/915:50SEA - LHR
1 stop12h 05mIcelandair
Deal found 19/5£420
Thu 12/913:10LHR - SEA
1 stop15h 25mIcelandair
Thu 19/918:55SEA - LHR
1 stop33h 00mIcelandair
Deal found 18/5£421
Mon 16/921:25LHR - SEA
1 stop31h 10mIcelandair
Sun 29/918:55SEA - LHR
1 stop33h 00mIcelandair
Deal found 18/5£423
Fri 13/913:05LHR - SEA
1 stop15h 30mIcelandair
Fri 27/918:55SEA - LHR
1 stop17h 25mIcelandair
Deal found 19/5£424

  • Icelandair is one of the most popular airlines used for those travelling from London Heathrow Airport to Seattle. Flights from Icelandair travelling this route typically cost £619.82 RT. This price is typically 64% more expensive than other airlines that offer London Heathrow Airport to Seattle flights. When booking this route, the cheapest RT price found was £323. The most popular departure airport in London Heathrow Airport when flying to Seattle is London Heathrow Airport. The most popular airport to fly into when visiting Seattle is Seattle/Tacoma Intl Airport. When flying from London Heathrow Airport to Seattle, Icelandair flights are 7% more popular than any other airline flying that same route.

Cheap Virgin Atlantic flights from Heathrow to Seattle

Explore cheap flight options specifically provided by Virgin Atlantic for the route between Heathrow and Seattle. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 835,519 searches. Data last updated 20 May 2024.
To aid your search, here are some of the cheapest Virgin Atlantic flights we've found from London to Seattle. Deals frequently update to provide users with more options.
Tue 5/1111:35LHR - SEA
Nonstop9h 55mVirgin Atlantic
Tue 12/1115:20SEA - LHR
Nonstop9h 25mVirgin Atlantic
Deal found 19/5£448
Tue 5/1106:20LHR - SEA
1 stop14h 00mVirgin Atlantic
Tue 12/1115:20SEA - LHR
Nonstop9h 25mVirgin Atlantic
Deal found 19/5£465
Sun 8/912:45LHR - SEA
Nonstop9h 55mVirgin Atlantic
Tue 22/1016:30SEA - LHR
Nonstop9h 20mVirgin Atlantic
Deal found 18/5£535
Wed 4/912:45LHR - SEA
Nonstop9h 55mVirgin Atlantic
Wed 18/916:30SEA - LHR
Nonstop9h 20mVirgin Atlantic
Deal found 18/5£557
Tue 18/616:50LHR - SEA
Nonstop10h 20mVirgin Atlantic
Sun 23/315:20SEA - LHR
Nonstop9h 25mVirgin Atlantic
Deal found 18/5£567
Sat 25/512:45LHR - SEA
Nonstop9h 55mVirgin Atlantic
Mon 27/516:30SEA - LHR
Nonstop9h 20mVirgin Atlantic
Deal found 19/5£678
Sun 26/516:50LHR - SEA
Nonstop10h 30mVirgin Atlantic
Tue 11/607:10SEA - LHR
1 stop16h 05mVirgin Atlantic
Deal found 19/5£725
Sun 26/516:50LHR - SEA
Nonstop10h 30mVirgin Atlantic
Tue 11/616:30SEA - LHR
Nonstop9h 20mVirgin Atlantic
Deal found 19/5£751
Sat 25/512:45LHR - SEA
Nonstop9h 55mVirgin Atlantic
Mon 27/507:10SEA - LHR
1 stop15h 15mVirgin Atlantic
Deal found 19/5£759

  • One of the most popular airlines travelling from London Heathrow Airport to Seattle is Virgin Atlantic. Flights from Virgin Atlantic travelling this route typically cost £777.23 RT. This price is typically 58% cheaper than other airlines that offer London Heathrow Airport to Seattle flights. When booking this route, the cheapest RT price found was £560. London Heathrow Airport is the most common London Heathrow Airport airport to take off from when flying to Seattle. Seattle/Tacoma Intl Airport is the most popular arrival airport in Seattle. When flying from London Heathrow Airport to Seattle, Virgin Atlantic flights are 4% more popular than any other airline flying that same route.

Cheap Heathrow to Seattle flights in May & June 2024

Find cheap flight options from Heathrow to Seattle specifically for the months of May and June 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 835,519 searches. Prices were last updated on 20 May 2024.
Scroll through some of the best deals on flights from London to Seattle in 2024. Check back soon for alternative fares.
Tue 18/621:25LHR - SEA
1 stop21h 55mIcelandair
Tue 25/623:00SEA - LHR
1 stop13h 20mIcelandair
Deal found 19/5£491
Tue 11/621:25LHR - SEA
1 stop28h 15mIcelandair
Mon 24/623:00SEA - LHR
1 stop28h 55mIcelandair
Deal found 19/5£501
Thu 6/621:25LHR - SEA
1 stop21h 55mIcelandair
Mon 10/623:00SEA - LHR
1 stop28h 55mIcelandair
Deal found 19/5£512
Sun 16/621:25LHR - SEA
1 stop21h 55mIcelandair
Mon 24/623:00SEA - LHR
1 stop28h 55mIcelandair
Deal found 19/5£515
Wed 5/621:25LHR - SEA
1 stop21h 55mIcelandair
Mon 10/618:55SEA - LHR
1 stop17h 25mIcelandair
Deal found 19/5£516
Sun 16/613:05LHR - SEA
1 stop30h 15mIcelandair
Sun 23/623:00SEA - LHR
1 stop28h 55mIcelandair
Deal found 18/5£532
Mon 17/621:25LHR - SEA
1 stop28h 15mIcelandair
Sun 23/623:00SEA - LHR
1 stop28h 55mIcelandair
Deal found 19/5£533
Thu 6/621:25LHR - SEA
1 stop28h 15mIcelandair
Sun 16/623:00SEA - LHR
1 stop28h 55mIcelandair
Deal found 19/5£535
Tue 18/621:25LHR - SEA
1 stop21h 55mIcelandair
Tue 10/918:55SEA - LHR
1 stop17h 25mIcelandair
Deal found 19/5£537

Heathrow to Seattle 2024 flight deals

Discover exclusive flight deals for travel between Heathrow and Seattle in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 835,519 searches. Data last updated 20 May 2024.
Scroll through some of the best deals on flights from London to Seattle in 2024. Check back soon for alternative fares.
Fri 20/913:05LHR - SEA
1 stop15h 30mIcelandair
Sun 29/918:55SEA - LHR
1 stop33h 00mIcelandair
Deal found 19/5£417
Tue 10/913:05LHR - SEA
1 stop12h 50mIcelandair
Thu 19/918:55SEA - LHR
1 stop17h 25mIcelandair
Deal found 19/5£418
Wed 4/913:05LHR - SEA
1 stop15h 30mIcelandair
Tue 24/918:55SEA - LHR
1 stop33h 00mIcelandair
Deal found 18/5£419
Thu 5/913:10LHR - SEA
1 stop30h 10mIcelandair
Mon 23/918:55SEA - LHR
1 stop17h 25mIcelandair
Deal found 18/5£420
Sat 7/921:25LHR - SEA
1 stop21h 55mIcelandair
Sat 21/915:50SEA - LHR
1 stop12h 05mIcelandair
Deal found 19/5£420
Tue 5/1120:25LHR - SEA
1 stop28h 35mIcelandair
Tue 12/1114:35SEA - LHR
1 stop20h 45mIcelandair
Deal found 19/5£421
Fri 13/913:05LHR - SEA
1 stop15h 30mIcelandair
Fri 27/918:55SEA - LHR
1 stop17h 25mIcelandair
Deal found 19/5£424
Mon 2/921:25LHR - SEA
1 stop21h 55mIcelandair
Mon 16/918:55SEA - LHR
1 stop17h 25mIcelandair
Deal found 19/5£427
Thu 12/913:10LHR - SEA
1 stop15h 25mIcelandair
Sun 22/918:55SEA - LHR
1 stop33h 00mIcelandair
Deal found 19/5£428

Direct flights to Seattle from Heathrow

Discover direct flight options from Heathrow to Seattle. Find direct flights with no stopovers, providing a convenient travel experience. Explore direct flight options based on user searches, and compare prices and availability for your desired travel dates. Over the last 7 days, Cheapflights users made 835,519 searches. Data last updated 20 May 2024.
Consider booking one of these non-stop flights heading from London to Seattle. If you're looking for other options for flights from London to Seattle, make sure to update the search form at the top of page.
Tue 5/1111:35LHR - SEA
Nonstop9h 55mVirgin Atlantic
Tue 12/1115:20SEA - LHR
Nonstop9h 25mVirgin Atlantic
Deal found 19/5£448
Mon 23/912:45LHR - SEA
Nonstop9h 55mVirgin Atlantic
Sat 9/1115:20SEA - LHR
Nonstop9h 25mVirgin Atlantic
Deal found 19/5£479
Mon 21/1009:50LHR - SEA
Nonstop9h 45mFinnair
Wed 30/1019:45SEA - LHR
Nonstop9h 20mFinnair
Deal found 18/5£480
Tue 22/1016:00LHR - SEA
Nonstop9h 45mFinnair
Sat 2/1114:45SEA - LHR
Nonstop9h 25mFinnair
Deal found 18/5£490
Tue 8/1016:50LHR - SEA
Nonstop10h 25mKLM
Mon 21/1021:10SEA - LHR
Nonstop9h 40mKLM
Deal found 19/5£495
Sun 29/916:00LHR - SEA
Nonstop9h 45mIberia
Tue 15/1013:30SEA - LHR
Nonstop9h 20mIberia
Deal found 19/5£498
Fri 4/1009:50LHR - SEA
Nonstop9h 45mFinnair
Fri 11/1013:30SEA - LHR
Nonstop9h 20mFinnair
Deal found 18/5£505
Thu 17/1016:00LHR - SEA
Nonstop9h 45mBritish Airways
Thu 24/1019:40SEA - LHR
Nonstop9h 20mBritish Airways
Deal found 19/5£510
Sun 29/916:00LHR - SEA
Nonstop9h 45mFinnair
Tue 15/1013:30SEA - LHR
Nonstop9h 20mFinnair
Deal found 18/5£515

Heathrow to Seattle flights leaving soon

Find last-minute flight options from Heathrow to Seattle for spontaneous travel. Discover available flights and compare prices based on user searches. Secure great deals and offers for spontaneous trips with quick booking options. Over the last 7 days, Cheapflights users made 835,519 searches. Data last updated 20 May 2024.
Have a look at some of the flights available from London to Seattle departing last-minute. Users should examine the flight details to ensure there are no surprises.
Wed 29/513:05LHR - SEA
1 stop15h 30mIcelandair
Mon 3/615:50SEA - LHR
1 stop12h 05mIcelandair
Deal found 19/5£549
Sat 25/516:15LHR - SEA
2 stops27h 15mUnited Airlines
Mon 27/507:00SEA - LHR
1 stop14h 55mUnited Airlines
Deal found 19/5£568
Tue 28/510:05LHR - SEA
1 stop17h 16mFinnair
Sat 8/607:06SEA - LHR
1 stop15h 19mFinnair
Deal found 19/5£606
Tue 28/509:50LHR - SEA
Nonstop9h 45mBritish Airways
Tue 4/619:40SEA - LHR
Nonstop9h 20mBritish Airways
Deal found 19/5£616
Tue 28/509:50LHR - SEA
Nonstop9h 45mFinnair
Sat 8/606:45SEA - LHR
1 stop16h 55mFinnair
Deal found 19/5£620
Tue 28/509:50LHR - SEA
Nonstop9h 45mAmerican Airlines
Fri 7/601:14SEA - LHR
1 stop21h 11mAmerican Airlines
Deal found 19/5£621
Tue 28/510:05LHR - SEA
1 stop17h 16mAmerican Airlines
Sat 8/605:53SEA - LHR
1 stop19h 12mAmerican Airlines
Deal found 19/5£624
Tue 28/510:05LHR - SEA
1 stop17h 16mFinnair
Fri 7/601:14SEA - LHR
1 stop21h 11mFinnair
Deal found 19/5£635
Tue 28/512:00LHR - SEA
1 stop17h 04mMultiple Airlines
Sat 8/605:10SEA - LHR
2 stops17h 20mMultiple Airlines
Deal found 19/5£672

One-way flights to Seattle from Heathrow

Search for one-way flight options from Heathrow to Seattle. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 835,519 searches. Data last updated 20 May 2024.
If you're seeking multiple options on one-way flights from London to Seattle, be sure to check out these deals, which are updated often. Those needing a return flight from London to Seattle can use the search form above.
Thu 6/617:30LHR - SEA
3 stops46h 27mMultiple Airlines
Deal found 18/5£286
Fri 31/507:05LHR - SEA
3 stops33h 40mMultiple Airlines
Deal found 18/5£290
Tue 28/520:15LHR - SEA
2 stops47h 05mMultiple Airlines
Deal found 19/5£313
Wed 12/620:15LHR - SEA
2 stops32h 20mMultiple Airlines
Deal found 19/5£321
Tue 28/521:05LHR - SEA
2 stops46h 15mMultiple Airlines
Deal found 18/5£323
Tue 18/613:10LHR - SEA
2 stops42h 49mMultiple Airlines
Deal found 18/5£327
Tue 18/613:10LHR - SEA
2 stops42h 49mMultiple Airlines
Deal found 19/5£328
Mon 17/614:30LHR - SEA
3 stops37h 51mMultiple Airlines
Deal found 18/5£331
Mon 17/614:30LHR - SEA
3 stops37h 51mMultiple Airlines
Deal found 18/5£334

Find flights from Heathrow to Seattle within your budget

Customise your flight search to find flights from Heathrow to Seattle that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 835,519 searches. Data last updated 20 May 2024.

Fly from

Any airport

Fly to

Any airport

Budget

£398 - £512

Route

Depart

Return

Price

London HeathrowSeattle/Tacoma Intl

LHR - SEA

LHRSEA

London Heathrow

Wed 4/9

1 stop15h 30m

Seattle/Tacoma Intl

Wed 18/9

1 stop17h 25m

£398

London HeathrowSeattle/Tacoma Intl

LHR - SEA

LHRSEA

London Heathrow

Tue 5/11

Nonstop9h 55m

Seattle/Tacoma Intl

Tue 12/11

Nonstop9h 25m

£448

London HeathrowSeattle/Tacoma Intl

LHR - SEA

LHRSEA

London Heathrow

Mon 14/10

Nonstop9h 45m

Seattle/Tacoma Intl

Sun 20/10

1 stop23h 31m

£481

London HeathrowSeattle/Tacoma Intl

LHR - SEA

LHRSEA

London Heathrow

Mon 21/10

Nonstop9h 45m

Seattle/Tacoma Intl

Wed 30/10

1 stop14h 51m

£483

London HeathrowSeattle/Tacoma Intl

LHR - SEA

LHRSEA

London Heathrow

Tue 5/11

2 stops21h 18m

Seattle/Tacoma Intl

Tue 12/11

1 stop35h 25m

£490

London HeathrowSeattle/Tacoma Intl

LHR - SEA

LHRSEA

London Heathrow

Sat 26/10

Nonstop9h 45m

Seattle/Tacoma Intl

Mon 4/11

1 stop17h 29m

£494

London HeathrowSeattle/Tacoma Intl

LHR - SEA

LHRSEA

London Heathrow

Tue 8/10

Nonstop10h 25m

Seattle/Tacoma Intl

Mon 21/10

Nonstop9h 40m

£495

London HeathrowSeattle/Tacoma Intl

LHR - SEA

LHRSEA

London Heathrow

Tue 8/10

Nonstop9h 45m

Seattle/Tacoma Intl

Mon 21/10

1 stop14h 45m

£496

London HeathrowSeattle/Tacoma Intl

LHR - SEA

LHRSEA

London Heathrow

Mon 9/9

1 stop14h 20m

Seattle/Tacoma Intl

Mon 21/10

Nonstop9h 40m

£512

Flights are sorted by cheapest first

Deals found on 18/5

When is the best time to book a flight from London Heathrow Airport to Seattle?

Use this chart to determine the optimal time to book a return flight from Heathrow to Seattle. Price data was last updated on 10 May 2024.
The best time to book flights from London Heathrow Airport to Seattle is 48 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
Search Deals

When is the cheapest time to fly from London Heathrow Airport to Seattle?

Use this chart to determine the cheapest time to fly return from Heathrow to Seattle. Price data was last updated on 12 May 2024.
Morning
Midday
Afternoon
Evening
All times are departure.
Travellers seeking maximum savings on their London Heathrow Airport to Seattle flight should consider departing on Monday evenings when fares are most often at their lowest. Sunday at midday flights should be avoided if possible as fares are typically the most expensive at this time.
Search Deals

Average price of flights to Seattle by month

Plan your trip from Heathrow to Seattle by taking into account the cheapest months to travel. The average price of a one-way flight from Heathrow to Seattle is currently £317 while a return flight costs £478. Price data was last updated on 19 May 2024.

Currently, December is the cheapest month in which you can book a flight from London Heathrow Airport to Seattle (average of £576). Flying from London Heathrow Airport to Seattle in July is currently the most expensive (average of £805). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

January

£479

February

£468

March

£498

April

£512

May

£527

June

£614

July

£634

August

£604

September

£538

October

£512

November

£472

December

£453

Temperature and rainfall in Seattle by month

Plan your trip to Seattle by taking into account the average temperature and rainfall totals by month.

SEA

Temperature

5 - 19 °C

Reviews of airlines servicing Seattle

Get insights into the airlines that provide service to Seattle. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Seattle. Reviews last updated 20 May 2024.
Get a feel of what it's like to fly with Icelandair, Virgin Atlantic and Finnair from London to Seattle by reading reviews from past customers. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very Good
10,635 reviews
Check prices

Entertainment

8.0

Overall

8.0

Crew

8.6

Food

7.4

Comfort

7.9

Boarding

8.2

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

Delta
8.0
Very Good
10,635 reviews
Delta
8.0
Very Good
10,635 reviews
Check prices

Entertainment

8.0

Overall

8.0

Crew

8.6

Food

7.4

Comfort

7.9

Boarding

8.2

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

KLM
7.9
Good
1,558 reviews
Delta
8.0
Very Good
10,635 reviews
Check prices

Entertainment

8.0

Overall

8.0

Crew

8.6

Food

7.4

Comfort

7.9

Boarding

8.2

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

Finnair
7.8
Good
1,373 reviews
Delta
8.0
Very Good
10,635 reviews
Check prices

Entertainment

8.0

Overall

8.0

Crew

8.6

Food

7.4

Comfort

7.9

Boarding

8.2

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

Virgin Atlantic
7.7
Good
733 reviews
Delta
8.0
Very Good
10,635 reviews
Check prices

Entertainment

8.0

Overall

8.0

Crew

8.6

Food

7.4

Comfort

7.9

Boarding

8.2

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

Austrian Airlines
7.7
Good
1,046 reviews
Delta
8.0
Very Good
10,635 reviews
Check prices

Entertainment

8.0

Overall

8.0

Crew

8.6

Food

7.4

Comfort

7.9

Boarding

8.2

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

Related info for your journey

Find useful and relevant information for your journey from Heathrow to Seattle. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Seattle from London Heathrow?

    If you book a flight to Seattle from London Heathrow, you will be flying to Seattle/Tacoma Intl, which is the city’s only airport. Seattle/Tacoma Intl (SEA) is located 11.4 mi from the center of Seattle. There are 21 flights from London Heathrow to Seattle/Tacoma Intl per day from 14 different airlines.

  • Can I find flights from London Heathrow Airport to Seattle for under £400 on Cheapflights?

    Yes, there are multiple flights from London Heathrow Airport to Seattle for under £400. The cheapest flight booked recently is on Icelandair for just £398, but on average you can expect to pay £430.

  • Are there nonstop flights from London Heathrow Airport to Seattle for under £500 on Cheapflights?

    Cheapflights has at least 20 direct flights from London Heathrow Airport to Seattle under £500. A good price for a nonstop flight from London Heathrow Airport to Seattle is less than £516.

  • Are there last-minute flights available from London Heathrow Airport to Seattle for under £600?

    There are currently 20+ open flights from London Heathrow Airport to Seattle within the next 7 days for less than £600.

  • What are the cheapest airlines flying from London Heathrow Airport to Seattle round-trip?

    According to our current data, Icelandair (£398), and Virgin Atlantic (£448) offers the cheapest pricing from London Heathrow Airport to Seattle. Icelandair is priced at 28% lower than the current average price of a flight leaving 3 months from now.

  • What are the most popular airlines that fly from London Heathrow Airport to Seattle?

    When booking a flight from London Heathrow Airport to Seattle, you may want to consider flying on American Airlines, Air Canada or Air France as they are the most popular for this route.

  • What are the most reliable airlines from London Heathrow Airport to Seattle?

    Consider KLM (75%), American Airlines (73%) or Aer Lingus (73%) when booking your flight. These represent the most reliable airlines when flying from London Heathrow Airport to Seattle.

  • What are the cheapest flights from London Heathrow Airport to Seattle?

    The cheapest flight price from London Heathrow Airport to Seattle is £496. On average you can expect to pay £2,258. The most popular route, (London Heathrow - Seattle/Tacoma Intl), can usually be booked for £394.

  • What does LHR to SEA mean?

    This is defined as London Heathrow Airport (LHR) and Seattle/Tacoma Intl Airport (SEA). Codes like Seattle/Tacoma Intl Airport are often used to just call airports uniquely.

  • Can I find deals for flights from Heathrow to Seattle that include extra baggage allowance?

    The amount of baggage you can bring on your Heathrow to Seattle flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from Heathrow to Seattle with specific airlines?

    Yes, Cheapflights allows you to browse and filter Heathrow to Seattle flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

  • Can I find deals for flights from Heathrow to Seattle that include hotel bookings?

    Yes. In addition to deals on Heathrow to Seattle flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Heathrow to Seattle?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Heathrow to Seattle.

  • Can I find deals for business class flights from Heathrow to Seattle?

    Yes. Cheapflights offers flight deals from Heathrow to Seattle by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • Can I find deals for flights from Heathrow to Seattle that allow pets onboard?

    Many airlines flying from Heathrow to Seattle offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from Heathrow to Seattle?

    Yes, you can often find last-minute deals on Heathrow to Seattle flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the London Heathrow Airport to Seattle flight deals updated?

    The London Heathrow Airport to Seattle flight deals you see on this page were last updated on 19/5.

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Fly from Heathrow to Seattle on these airlines
Choose from the following airlines for your flight from Heathrow to Seattle. Flights are based on user searches made on Cheapflights and were last updated on 20 May 2024.

Virgin Atlantic flights from London Heathrow to Seattle/Tacoma Intl
British Airways flights from London Heathrow to Seattle/Tacoma Intl
Finnair flights from London Heathrow to Seattle/Tacoma Intl

Top 10 airlines flying from Heathrow to Seattle

Discover the top 10 airlines that operate flights from Heathrow to Seattle. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 835,519 searches. Data last updated 20 May 2024.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest£254Average£488FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
Virgin AtlanticCheapest£389Average£568FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
British AirwaysCheapest£414Average£562FlexibilityNo cancel feeOn-time70%
Search British Airways flights
IcelandairCheapest£417Average£561FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
Air CanadaCheapest£426Average£503FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
American AirlinesCheapest£430Average£578FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
LufthansaCheapest£437Average£571FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
United AirlinesCheapest£439Average£509FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
KLMCheapest£441Average£612FlexibilityNo cancel feeOn-time75%
Search KLM flights
FinnairCheapest£443Average£590FlexibilityNo cancel feeOn-time76%
Search Finnair flights
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Search flights from Heathrow to Seattle by cabin class

Find flights from Heathrow to Seattle, based on your preferred cabin class, be it economy, premium economy, business, or first class.
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Hourly flight availability from Heathrow to Seattle

Find hourly flight availability from Heathrow to Seattle. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 20 May 2024.
1%of flight departuresEarly morningMidnight to 6 am
43%of flight departuresMorning6 am to noon
56%of flight departuresAfternoonNoon to 6 pm
0%of flight departuresEvening6 pm to midnight
Midnight
6 AM
Midday
6 PM

Weekly flight availability from Heathrow to Seattle

Explore weekly flight availability from Heathrow to Seattle. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 20 May 2024.
Monday20daily flights
Tuesday24daily flights
Wednesday20daily flights
Thursday20daily flights
Friday20daily flights
Saturday25daily flights
Sunday20daily flights

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How does Cheapflights help users find flights from Heathrow to Seattle?

Deals for Heathrow to Seattle flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

Why should you use Cheapflights to find cheap flight tickets from Heathrow to Seattle?

Cheapflights helps you find that perfect flight to Seattle from Heathrow by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

Can Cheapflights find flights from Heathrow to Seattle with no change fees?

Need flexible booking options for your flight to Seattle from Heathrow? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Can Cheapflights notify me if prices for flights from Heathrow to Seattle become cheaper?

Yes! Start tracking prices for Heathrow to Seattle flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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