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Cheap flights from London Heathrow Airport to St. Louis from £437

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 30/8. 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 — STL
7 Jun — 14 Jun1
1 adult
Fri 7/6
Fri 14/6

The best prices from London Heathrow to Lambert-St Louis are usually found in November or October, booked 16 days in advance, depart on a Wednesday or Monday and return on a Wednesday

Cheap flight deals from Heathrow to St. Louis

Discover tips and strategies to find the most affordable flight options for your journey from Heathrow (LHR) to St. Louis (STL). 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 2 June 2024.

Popular in

August

Cheapest in

November

Average price

£646

Round-trip from

£523
High demand for flights, 27% potential price rise
Search Deals
Best time to find cheap flights, 18% potential price drop
Search Deals
Average for round-trip flights in June 2024
Search Deals
From London Heathrow to Lambert-St Louis
Search Deals

What is the cheapest day to fly round-trip from London Heathrow Airport to St. Louis?

Flying to your destination on a Saturday can be more expensive, but this shouldn’t discourage you from finding affordable options to get to St. Louis. Check prices with Cheapflights to find a great deal for your trip.

How far in advance should I book a flight from London Heathrow Airport to St. Louis?

Travelers have found it’s best to book a flight 28 days in advance to save up to 14% compared to booking the same week of travel. As your travel date approaches, the cost of this flight route may potentially increase. While opting to book 28 days out may not be an option for all, there are still additional ways to secure a deal in the near future. You might find a flight from London Heathrow Airport to St. Louis 1-2 weeks in advance for as low as £519, or £696 for flights within the next 24 hours.

What is the cheapest month to fly from London Heathrow Airport to St. Louis?

The best pricing can be found in the month of November. Prices to St. Louis from London Heathrow Airport average £607. You can even find prices in November for less than £607, as users have found deals to St. Louis from as low as £432. The month of August appears to be one of the more expensive times to travel to St. Louis from London Heathrow Airport. Flying in the targeted month can save you up to 32%.

What is the cheapest time of day to fly from LHR to STL?

A simple way to save on the total cost of your ticket is to fly from London Heathrow Airport to St. Louis in the morning. If you’re flexible enough to do this you can expect to save up to 5% on your trip compared to booking a flight in the evening.

Cheap Austrian Airlines flights from Heathrow to St. Louis

Explore cheap flight options specifically provided by Austrian Airlines for the route between Heathrow and St. Louis. 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 903,732 searches. Data last updated 2 June 2024.
Find some of the cheapest Austrian Airlines flights travelling from London to St. Louis. Make sure to double check the flight details before booking.
Sat 13/708:00LHR - STL
1 stop19h 48mAustrian Airlines
Sat 14/1213:27STL - LHR
2 stops49h 23mAustrian Airlines
Deal found 2/6£913
Tue 2/708:00LHR - STL
1 stop20h 37mAustrian Airlines
Sun 14/711:05STL - LHR
1 stop27h 35mAustrian Airlines
Deal found 2/6£935
Fri 28/608:30LHR - STL
1 stop14h 42mAustrian Airlines
Sun 30/611:05STL - LHR
1 stop27h 35mAustrian Airlines
Deal found 2/6£979
Wed 12/611:05LHR - STL
2 stops36h 07mAustrian Airlines
Sun 7/711:05STL - LHR
1 stop27h 35mAustrian Airlines
Deal found 2/6£1,179
Thu 13/619:30LHR - STL
2 stops27h 42mAustrian Airlines
Thu 20/613:10STL - LHR
1 stop10h 45mAustrian Airlines
Deal found 2/6£1,193
Sun 9/609:05LHR - STL
2 stops42h 39mAustrian Airlines
Sun 16/610:50STL - LHR
1 stop17h 20mAustrian Airlines
Deal found 2/6£1,201
Sat 15/606:00LHR - STL
2 stops17h 12mAustrian Airlines
Sat 22/611:38STL - LHR
1 stop18h 07mAustrian Airlines
Deal found 2/6£1,223

Cheap Air Canada flights from Heathrow to St. Louis

Explore cheap flight options specifically provided by Air Canada for the route between Heathrow and St. Louis. 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 903,732 searches. Data last updated 2 June 2024.
Have a look at some of the cheapest available Air Canada flights departing from London and landing in St. Louis. Make sure to examine the flight information before completing your reservation.
Fri 25/1014:05LHR - STL
1 stop13h 00mAir Canada
Sat 2/1116:10STL - LHR
2 stops47h 25mAir Canada
Deal found 2/6£915
Fri 28/618:00LHR - STL
2 stops27h 40mAir Canada
Sun 30/616:05STL - LHR
1 stop32h 30mAir Canada
Deal found 2/6£991
Sat 13/718:00LHR - STL
2 stops26h 18mAir Canada
Sat 14/1213:27STL - LHR
2 stops15h 53mAir Canada
Deal found 2/6£1,015
Wed 12/612:40LHR - STL
2 stops38h 25mAir Canada
Sun 7/711:30STL - LHR
2 stops27h 30mAir Canada
Deal found 2/6£1,184
Sat 26/1008:30LHR - STL
2 stops19h 22mAir Canada
Sat 2/1111:10STL - LHR
2 stops14h 20mAir Canada
Deal found 2/6£1,518

Cheap Heathrow to St. Louis flights in June & July 2024

Find cheap flight options from Heathrow to St. Louis specifically for the months of June and July 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 903,732 searches. Prices were last updated on 2 June 2024.
These are some of the most attractive deals on flights from London to St. Louis in 2024. For more flight deals, be sure to check back very soon.
Mon 10/611:40LHR - STL
1 stop17h 18mFinnair
Sun 16/618:08STL - LHR
1 stop22h 02mFinnair
Deal found 1/6£565
Wed 19/611:40LHR - STL
1 stop17h 18mFinnair
Sat 29/609:44STL - LHR
1 stop16h 21mFinnair
Deal found 1/6£599
Wed 12/613:00LHR - STL
1 stop16h 26mFinnair
Sun 7/717:46STL - LHR
1 stop33h 19mFinnair
Deal found 2/6£654
Thu 13/613:00LHR - STL
1 stop16h 26mFinnair
Thu 20/609:23STL - LHR
1 stop17h 42mFinnair
Deal found 1/6£667
Sat 15/609:45LHR - STL
1 stop12h 20mFinnair
Sat 22/605:00STL - LHR
1 stop24h 05mFinnair
Deal found 1/6£704
Mon 10/606:00LHR - STL
3 stops35h 45mMultiple Airlines
Sun 16/612:45STL - LHR
3 stops35h 50mMultiple Airlines
Deal found 1/6£737
Mon 10/608:10LHR - STL
1 stop15h 08mFinnair
Sun 16/609:23STL - LHR
2 stops14h 57mFinnair
Deal found 1/6£898
Mon 3/612:00LHR - STL
1 stop13h 28mFinnair
Tue 11/618:08STL - LHR
1 stop10h 12mFinnair
Deal found 1/6£917
Mon 3/612:00LHR - STL
1 stop13h 28mFinnair
Tue 11/618:08STL - LHR
1 stop12h 07mFinnair
Deal found 2/6£919

Heathrow to St. Louis 2024 flight deals

Discover exclusive flight deals for travel between Heathrow and St. Louis in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 903,732 searches. Data last updated 2 June 2024.
These are some of the most attractive deals on flights from London to St. Louis in 2024. For more flight deals, be sure to check back very soon.
Thu 26/911:15LHR - STL
1 stop17h 45mFinnair
Sun 29/918:14STL - LHR
1 stop21h 56mFinnair
Deal found 1/6£546
Thu 26/911:15LHR - STL
1 stop17h 45mFinnair
Sun 29/917:35STL - LHR
1 stop31h 55mFinnair
Deal found 2/6£547
Mon 10/611:40LHR - STL
1 stop17h 18mFinnair
Sun 16/618:08STL - LHR
1 stop22h 02mFinnair
Deal found 1/6£565
Thu 5/910:10LHR - STL
1 stop18h 50mFinnair
Thu 26/916:51STL - LHR
1 stop11h 59mFinnair
Deal found 1/6£575
Thu 5/911:15LHR - STL
1 stop17h 45mFinnair
Thu 26/912:52STL - LHR
1 stop11h 48mFinnair
Deal found 2/6£576
Wed 19/611:40LHR - STL
1 stop17h 18mFinnair
Sat 29/609:44STL - LHR
1 stop16h 21mFinnair
Deal found 1/6£599
Fri 25/1014:45LHR - STL
1 stop30h 55mFinnair
Sat 2/1107:30STL - LHR
1 stop10h 10mFinnair
Deal found 1/6£633
Mon 1/712:15LHR - STL
1 stop13h 14mFinnair
Mon 8/705:29STL - LHR
1 stop21h 56mFinnair
Deal found 1/6£637
Wed 12/613:00LHR - STL
1 stop16h 26mFinnair
Sun 7/717:46STL - LHR
1 stop33h 19mFinnair
Deal found 2/6£654

Heathrow to St. Louis flights leaving soon

Find last-minute flight options from Heathrow to St. Louis 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 903,732 searches. Data last updated 2 June 2024.
Check out these flights departing soon from London to St. Louis. To prevent any unwanted surprises, users should verify their flight info before booking.
Wed 12/613:00LHR - STL
1 stop16h 26mFinnair
Sun 7/717:46STL - LHR
1 stop33h 19mFinnair
Deal found 2/6£654
Wed 12/607:30LHR - STL
2 stops20h 32mFinnair
Sun 7/712:46STL - LHR
1 stop13h 14mFinnair
Deal found 2/6£937
Wed 12/611:05LHR - STL
2 stops36h 07mAustrian Airlines
Sun 7/711:05STL - LHR
1 stop27h 35mAustrian Airlines
Deal found 2/6£1,179
Wed 12/612:40LHR - STL
2 stops38h 25mAir Canada
Sun 7/711:30STL - LHR
2 stops27h 30mAir Canada
Deal found 2/6£1,184
Wed 12/606:50LHR - STL
2 stops14h 51mUnited Airlines
Sun 7/711:25STL - LHR
2 stops14h 55mUnited Airlines
Deal found 2/6£1,194
Sun 9/609:05LHR - STL
2 stops42h 39mAustrian Airlines
Sun 16/610:50STL - LHR
1 stop17h 20mAustrian Airlines
Deal found 2/6£1,201
Sun 9/612:15LHR - STL
1 stop15h 47mFinnair
Sun 16/618:08STL - LHR
1 stop22h 02mFinnair
Deal found 2/6£1,219
Sun 9/606:50LHR - STL
2 stops14h 51mUnited Airlines
Sun 16/611:38STL - LHR
2 stops13h 37mUnited Airlines
Deal found 2/6£1,223
Wed 12/619:05LHR - STL
2 stops25h 09mMultiple Airlines
Fri 14/617:25STL - LHR
2 stops21h 25mMultiple Airlines
Deal found 2/6£1,755

One-way flights to St. Louis from Heathrow

Search for one-way flight options from Heathrow to St. Louis. 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 903,732 searches. Data last updated 2 June 2024.
Take a look at some of the best available options we've come across on one-way flights from London to St. Louis. Users can also find round-trip London to St. Louis flights by using the search form above.
Fri 30/806:45LHR - STL
3 stops30h 22mMultiple Airlines
Deal found 2/6£437
Sun 15/921:05LHR - STL
3 stops27h 25mMultiple Airlines
Deal found 2/6£550
Wed 30/1021:05LHR - STL
3 stops30h 31mMultiple Airlines
Deal found 2/6£556
Tue 29/1015:05LHR - STL
2 stops24h 41mMultiple Airlines
Deal found 2/6£559
Sun 9/608:00LHR - STL
3 stops29h 05mMultiple Airlines
Deal found 2/6£588
Fri 2/806:45LHR - STL
3 stops31h 51mMultiple Airlines
Deal found 2/6£592
Sun 9/620:30LHR - STL
2 stops30h 26mMultiple Airlines
Deal found 2/6£614
Mon 9/915:35LHR - STL
2 stops21h 30mMultiple Airlines
Deal found 2/6£621
Sun 15/913:10LHR - STL
2 stops23h 55mMultiple Airlines
Deal found 2/6£629

Find flights from Heathrow to St. Louis within your budget

Customise your flight search to find flights from Heathrow to St. Louis 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 903,732 searches. Data last updated 2 June 2024.

Fly from

Any airport

Fly to

Any airport

Budget

£547 - £931

Route

Depart

Return

Price

London HeathrowLambert-St Louis

LHR - STL

LHRSTL

London Heathrow

Thu 26/9

1 stop17h 45m

Lambert-St Louis

Sun 29/9

1 stop31h 55m

£547

London HeathrowLambert-St Louis

LHR - STL

LHRSTL

London Heathrow

Thu 5/9

1 stop17h 20m

Lambert-St Louis

Thu 26/9

1 stop12h 01m

£576

London HeathrowLambert-St Louis

LHR - STL

LHRSTL

London Heathrow

Mon 28/10

2 stops14h 46m

Lambert-St Louis

Wed 27/11

1 stop17h 24m

£789

London HeathrowLambert-St Louis

LHR - STL

LHRSTL

London Heathrow

Mon 28/10

2 stops29h 23m

Lambert-St Louis

Wed 27/11

2 stops14h 30m

£795

London HeathrowLambert-St Louis

LHR - STL

LHRSTL

London Heathrow

Sat 13/7

1 stop19h 48m

Lambert-St Louis

Sat 14/12

2 stops49h 23m

£913

London HeathrowLambert-St Louis

LHR - STL

LHRSTL

London Heathrow

Fri 25/10

1 stop13h 00m

Lambert-St Louis

Sat 2/11

2 stops47h 25m

£915

London HeathrowLambert-St Louis

LHR - STL

LHRSTL

London Heathrow

Mon 1/7

2 stops14h 50m

Lambert-St Louis

Thu 11/7

2 stops14h 26m

£920

London HeathrowLambert-St Louis

LHR - STL

LHRSTL

London Heathrow

Tue 2/7

2 stops15h 10m

Lambert-St Louis

Tue 9/7

1 stop12h 15m

£926

London HeathrowLambert-St Louis

LHR - STL

LHRSTL

London Heathrow

Mon 14/10

2 stops17h 36m

Lambert-St Louis

Thu 31/10

2 stops15h 25m

£931

Flights are sorted by cheapest first

Deals found on 2/6

How far ahead should I book a flight from London Heathrow Airport to St. Louis?

Use this chart to determine the optimal time to book a return flight from Heathrow to St. Louis. Price data was last updated on 31 May 2024.
To ensure you get the cheapest price possible for a flight from London Heathrow Airport to St. Louis, you should look to book at least 16 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.
Search Deals

What is the cheapest day to fly from London Heathrow Airport to St. Louis?

Use this chart to determine the cheapest time to fly return from Heathrow to St. Louis. Price data was last updated on 26 May 2024.
Morning
Midday
Afternoon
Evening
All times are departure.
Travellers seeking maximum savings on their London Heathrow Airport to St. Louis flight should consider departing on Tuesday evenings when fares are most often at their lowest. Sunday evenings flights should be avoided if possible as fares are typically the most expensive at this time.
Search Deals

Best time to book a flight from Heathrow to St. Louis

Have a flexible travel schedule? Discover the best time to fly to St. Louis from Heathrow with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Temperature and rainfall in St. Louis by month

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

STL

Temperature

0 - 27 °C

Reviews of airlines servicing St. Louis

Get insights into the airlines that provide service to St. Louis. 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 St. Louis. Reviews last updated 2 June 2024.
To help decide which airline to fly from London to St. Louis, see what other customers have to say about Austrian Airlines, Air Canada and Finnair. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very Good
10,402 reviews
Check prices

Boarding

8.2

Overall

8.0

Crew

8.6

Comfort

7.9

Food

7.4

Entertainment

8.0

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
10,402 reviews
Delta
8.0
Very Good
10,402 reviews
Check prices

Boarding

8.2

Overall

8.0

Crew

8.6

Comfort

7.9

Food

7.4

Entertainment

8.0

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
1,507 reviews
Delta
8.0
Very Good
10,402 reviews
Check prices

Boarding

8.2

Overall

8.0

Crew

8.6

Comfort

7.9

Food

7.4

Entertainment

8.0

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
1,366 reviews
Delta
8.0
Very Good
10,402 reviews
Check prices

Boarding

8.2

Overall

8.0

Crew

8.6

Comfort

7.9

Food

7.4

Entertainment

8.0

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
1,016 reviews
Delta
8.0
Very Good
10,402 reviews
Check prices

Boarding

8.2

Overall

8.0

Crew

8.6

Comfort

7.9

Food

7.4

Entertainment

8.0

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
7.6
Good
720 reviews
Delta
8.0
Very Good
10,402 reviews
Check prices

Boarding

8.2

Overall

8.0

Crew

8.6

Comfort

7.9

Food

7.4

Entertainment

8.0

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 St. Louis. 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 St. Louis from London Heathrow?

    For a flight from London Heathrow to St. Louis, you will be flying into Lambert-St Louis. Lambert-St Louis (STL) is just 12.7 mi from the center of the city. Lambert-St Louis is the only St. Louis airport and it handles 0 inbound flights from London Heathrow per day. 9 airlines have flights to Lambert-St Louis from London Heathrow on a regular basis.

  • Can I find flights from London Heathrow Airport to St. Louis for under £600 on Cheapflights?

    Yes, there are multiple flights from London Heathrow Airport to St. Louis for under £600. The cheapest flight booked recently is on Finnair for just £547, but on average you can expect to pay £779.

  • Are there last-minute flights available from London Heathrow Airport to St. Louis for under £700?

    There are currently 11+ open flights from London Heathrow Airport to St. Louis within the next 7 days for less than £700.

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

    Cheapflights users have booked flights from London Heathrow Airport to St. Louis round-trip from £547. Other airlines that can offer you cheap pricing are American Airlines, from £789, and Austrian Airlines, from £913. Finnair is priced at 12% lower than the current average price of a flight leaving 3 months from now.

  • What are the cheapest airlines to fly from London Heathrow Airport to St. Louis one-way?

    For one-way options, check prices for Finnair. According to our data, you can fly for as low as £664. Users have also found prices from £773 and £888 on WestJet and Turkish Airlines, respectively.

  • What does LHR to STL mean?

    These are just IATA (International Air Transport Association) codes. They are used in aviation to identify and differentiate airports. That’s why a London Heathrow Airport to Lambert-St Louis Airport flight would often be abbreviated as a LHR to STL flight.

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

    The amount of baggage you can bring on your Heathrow to St. Louis 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 St. Louis with specific airlines?

    Yes, Cheapflights allows you to browse and filter Heathrow to St. Louis 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 St. Louis that include hotel bookings?

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

  • How can I find direct flights from Heathrow to St. Louis?

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

  • Can I find deals for business class flights from Heathrow to St. Louis?

    Yes. Cheapflights offers flight deals from Heathrow to St. Louis 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 St. Louis that allow pets onboard?

    Many airlines flying from Heathrow to St. Louis 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 St. Louis?

    Yes, you can often find last-minute deals on Heathrow to St. Louis 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 St. Louis flight deals updated?

    The London Heathrow Airport to St. Louis flight deals you see on this page were last updated on 2/6.

  • What are the most popular airlines that fly from London Heathrow Airport to St. Louis?

    Before booking your flight from London Heathrow Airport to St. Louis check out the most popular airlines for this route: American Airlines, Air Canada or Finnair.

  • What is the cheapest month to book a flight from London Heathrow Airport to St. Louis?

    Currently, November is the cheapest month in which you can book a flight from London Heathrow Airport to St. Louis (average of £666). Flying from London Heathrow Airport to St. Louis in August is currently the most expensive (average of £852). 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.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top 9 airlines flying from Heathrow to St. Louis

Discover the top 9 airlines that operate flights from Heathrow to St. Louis. 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 903,732 searches. Data last updated 2 June 2024.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest£462Average£817FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
United AirlinesCheapest£463Average£771FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
FinnairCheapest£469Average£576FlexibilityNo cancel feeOn-time76%
Search Finnair flights
Virgin AtlanticCheapest£470Average£847FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
LufthansaCheapest£525Average£830FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
IberiaCheapest£556Average£736FlexibilityNo cancel feeOn-time77%
Search Iberia flights
American AirlinesCheapest£619Average£946FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
British AirwaysCheapest£631Average£837FlexibilityNo cancel feeOn-time70%
Search British Airways flights
KLMCheapest£760Average£918FlexibilityNo cancel feeOn-time75%
Search KLM flights
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London Heathrow Airport to London Stansted Airport flights

Search flights from Heathrow to St. Louis by cabin class

Find flights from Heathrow to St. Louis, based on your preferred cabin class, be it economy, premium economy, business, or first class.
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How does Cheapflights help users find flights from Heathrow to St. Louis?

Cheapflights makes it easy to find Heathrow to St. Louis flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

Why should you use Cheapflights to find cheap flight tickets from Heathrow to St. Louis?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to St. Louis from Heathrow.

Can Cheapflights find flights from Heathrow to St. Louis with no change fees?

Certainly. Search results for flights to St. Louis from Heathrow shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

Can Cheapflights notify me if prices for flights from Heathrow to St. Louis become cheaper?

Yes, Cheapflights offers price alerts on Heathrow to St. Louis flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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