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Cheap flights to Illinois from £183

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 11/6. 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.
CMH — ORD
26 May — 2 Jun1
1 adult
Sun 26/5
Sun 2/6

Flights to Illinois in 2024

Find the latest flights to Illinois in 2024, with up-to-date prices and availability. In the last 7 days, Cheapflights users made a total of 853,037 searches and data was last updated on 21 May 2024.

Popular in

July

Cheapest in

February

Average price

£540

Return from

£357

One-way from

£183
High demand for flights, 17% potential price rise
Best time to find cheap flights, 2% potential price drop
Average for return flights in May 2024
From London to Chicago
One-way flight from London to Illinois

Find flights to Illinois

Browse one-way and return flights deals to Illinois on Cheapflights. Flight deals are based on user searches and were last updated on 21 May 2024
Explore Illinois

Cheap flights to Illinois in May & June 2024

Search the best deals to popular Illinois cities recently found by Cheapflights users
The deals listed below are some of the cheapest flights available to Illinois in May and June 2024. Prices refresh often so be sure to come back soon for more deals.
Cheap flights to Chicago, Illinois
Tue 4/610:00LGW - ORD
1 stop17h 56mMultiple Airlines
Mon 24/610:27ORD - LGW
1 stop14h 33mMultiple Airlines
Deal found 19/5£379
Tue 18/610:00LGW - ORD
1 stop28h 21mMultiple Airlines
Thu 18/710:00ORD - LGW
1 stop15h 00mMultiple Airlines
Deal found 19/5£390
Tue 18/610:00LGW - ORD
1 stop28h 21mMultiple Airlines
Tue 25/620:50ORD - LGW
1 stop28h 10mMultiple Airlines
Deal found 19/5£397
Tue 18/610:00LGW - ORD
1 stop28h 21mMultiple Airlines
Tue 25/620:50ORD - LGW
1 stop28h 10mMultiple Airlines
Deal found 19/5£397
Tue 18/610:00LGW - MDW
1 stop27h 31mMultiple Airlines
Tue 25/619:36MDW - LGW
1 stop29h 24mMultiple Airlines
Deal found 19/5£405
Tue 18/610:00LGW - MDW
1 stop27h 31mMultiple Airlines
Tue 25/619:36MDW - LGW
1 stop29h 24mMultiple Airlines
Deal found 19/5£406
Tue 25/610:00LGW - ORD
1 stop28h 21mMultiple Airlines
Tue 2/720:50ORD - LGW
1 stop28h 10mMultiple Airlines
Deal found 20/5£422
Thu 20/610:00LGW - MDW
1 stop17h 56mMultiple Airlines
Sat 6/709:31MDW - LGW
1 stop15h 29mMultiple Airlines
Deal found 19/5£427
Tue 18/610:00LGW - ORD
1 stop28h 21mMultiple Airlines
Thu 27/610:27ORD - LGW
1 stop14h 33mMultiple Airlines
Deal found 20/5£438
Cheap flights to Peoria, Illinois
Sun 16/610:35LHR - PIA
2 stops29h 50mUnited Airlines
Sun 23/611:00PIA - LHR
1 stop16h 00mUnited Airlines
Deal found 19/5£986
Sun 16/608:30LHR - PIA
1 stop12h 44mUnited Airlines
Sun 23/607:00PIA - LHR
1 stop22h 45mUnited Airlines
Deal found 19/5£996
Sun 16/606:50LHR - PIA
2 stops14h 24mUnited Airlines
Sun 23/611:00PIA - LHR
2 stops18h 35mUnited Airlines
Deal found 20/5£999
Sun 16/610:35LHR - PIA
2 stops29h 50mUnited Airlines
Sun 23/615:50PIA - LHR
2 stops18h 30mUnited Airlines
Deal found 19/5£1,004
Sun 16/608:30LHR - PIA
1 stop12h 44mUnited Airlines
Sun 23/611:00PIA - LHR
1 stop18h 45mUnited Airlines
Deal found 20/5£1,007
Sun 16/612:00LHR - PIA
1 stop15h 29mAmerican Airlines
Sun 23/616:34PIA - LHR
1 stop33h 06mAmerican Airlines
Deal found 20/5£1,027
Sun 16/609:15LHR - PIA
2 stops14h 39mAmerican Airlines
Sun 23/616:34PIA - LHR
2 stops13h 41mAmerican Airlines
Deal found 19/5£1,053
Sun 16/613:20LHR - PIA
2 stops14h 44mAmerican Airlines
Sun 23/616:34PIA - LHR
2 stops13h 41mAmerican Airlines
Deal found 20/5£1,066
Cheap flights to Moline, Illinois
Mon 17/606:50LHR - MLI
2 stops14h 10mUnited Airlines
Mon 24/615:47MLI - LHR
1 stop10h 43mUnited Airlines
Deal found 20/5£924
Mon 17/608:30LHR - MLI
1 stop12h 30mUnited Airlines
Mon 24/615:47MLI - LHR
1 stop13h 58mUnited Airlines
Deal found 20/5£932
Thu 13/608:40LHR - MLI
2 stops18h 37mUnited Airlines
Mon 17/615:47MLI - LHR
2 stops14h 03mUnited Airlines
Deal found 20/5£977
Thu 13/618:15LHR - MLI
2 stops27h 59mAmerican Airlines
Mon 17/616:23MLI - LHR
1 stop13h 47mAmerican Airlines
Deal found 19/5£981
Thu 13/615:20LHR - MLI
1 stop11h 57mUnited Airlines
Mon 17/615:47MLI - LHR
2 stops14h 03mUnited Airlines
Deal found 20/5£986
Thu 13/607:30LHR - MLI
2 stops19h 47mLufthansa
Mon 17/617:45MLI - LHR
1 stop33h 15mLufthansa
Deal found 19/5£988
Thu 13/615:20LHR - MLI
1 stop31h 37mLufthansa
Mon 17/617:45MLI - LHR
1 stop33h 15mLufthansa
Deal found 19/5£994
Thu 13/613:10LHR - MLI
1 stop14h 21mMultiple Airlines
Mon 17/615:58MLI - LHR
1 stop12h 42mMultiple Airlines
Deal found 20/5£1,026
Thu 13/615:15LHR - MLI
1 stop12h 32mAmerican Airlines
Mon 17/607:05MLI - LHR
1 stop18h 35mAmerican Airlines
Deal found 20/5£1,031

Illinois 2024 flight deals

Explore flight deals for Illinois in 2024, offering the best prices and options to suit your preferences. In the last 7 days, Cheapflights users made a total of 853,037 searches and data were last updated on 21 May 2024.
These are some of the best deals we've found on flights to Illinois in 2024 at this time. Check back regularly for other flight deals.
Sat 2/1106:40LHR - ORD
2 stops17h 25mScandinavian Airlines
Sat 9/1120:10ORD - LHR
2 stops14h 15mScandinavian Airlines
Deal found 20/5£357
Fri 1/1106:40LHR - ORD
1 stop17h 25mScandinavian Airlines
Sat 16/1120:10ORD - LHR
2 stops16h 20mScandinavian Airlines
Deal found 20/5£371
Wed 6/1106:00LHR - ORD
1 stop15h 30mTAP AIR PORTUGAL
Wed 13/1119:15ORD - LHR
1 stop16h 15mTAP AIR PORTUGAL
Deal found 19/5£371
Sat 2/1106:40LHR - ORD
1 stop17h 25mScandinavian Airlines
Sat 9/1120:10ORD - LHR
2 stops14h 15mScandinavian Airlines
Deal found 20/5£372
Thu 14/1120:30LHR - ORD
1 stop27h 35mScandinavian Airlines
Sat 30/1120:10ORD - LHR
2 stops14h 15mScandinavian Airlines
Deal found 20/5£373
Fri 1/1119:30LHR - ORD
2 stops28h 35mScandinavian Airlines
Sat 16/1120:10ORD - LHR
2 stops14h 15mScandinavian Airlines
Deal found 20/5£376
Thu 28/1115:55LGW - ORD
1 stop29h 35mTAP AIR PORTUGAL
Sun 1/1220:25ORD - LGW
1 stop13h 20mTAP AIR PORTUGAL
Deal found 20/5£377
Tue 22/1016:25LGW - ORD
1 stop29h 45mTAP AIR PORTUGAL
Wed 30/1020:15ORD - LGW
1 stop13h 50mTAP AIR PORTUGAL
Deal found 20/5£378
Tue 4/610:00LGW - ORD
1 stop17h 56mMultiple Airlines
Mon 24/610:27ORD - LGW
1 stop14h 33mMultiple Airlines
Deal found 19/5£379

Flights to Illinois departing soon

Discover available last-minute flight options to Illinois, providing immediate availability and potentially lower prices. In the last 7 days, Cheapflights users made a total of 853,037 searches and data was last updated on 21 May 2024.
Have a look at some of the best last-minute flights available departing to Illinois. Make sure to double check the price, time, and destination to confirm all are correct.
Wed 29/514:45LHR - ORD
Nonstop8h 35mAmerican Airlines
Thu 13/622:25ORD - LHR
Nonstop7h 50mAmerican Airlines
Deal found 20/5£475

One-way flights to Illinois

Explore one-way flight options to Illinois for greater flexibility in your travel plans. Find up-to-date pricing and availability for one-way flights. In the last 7 days, Cheapflights users made a total of 853,037 searches and data was last updated on 21 May 2024.
Take a look at some of the one-way flights departing to Illinois in the near future. Users can also find round-trip Illinois flights by using the search form above.
Tue 11/610:00LGW - MDW
1 stop14h 41mMultiple Airlines
Deal found 19/5£183
Sat 27/714:10LHR - MLI
2 stops36h 54mMultiple Airlines
Deal found 20/5£1,032

Direct flights to Illinois

Mon 3/610:05LHR - ORD
Nonstop8h 40mAmerican Airlines
Mon 10/622:25ORD - LHR
Nonstop7h 50mAmerican Airlines
Deal found 19/5£474
Wed 6/1115:45LHR - ORD
Nonstop9h 00mBritish Airways
Wed 13/1121:45ORD - LHR
Nonstop7h 45mBritish Airways
Deal found 19/5£475
Tue 18/608:10LHR - ORD
Nonstop8h 35mAmerican Airlines
Tue 25/618:00ORD - LHR
Nonstop7h 50mAmerican Airlines
Deal found 19/5£475
Wed 3/714:25LHR - ORD
Nonstop8h 42mAmerican Airlines
Thu 30/118:35ORD - LHR
Nonstop7h 40mAmerican Airlines
Deal found 19/5£485
Mon 28/1013:10LHR - ORD
Nonstop8h 55mFinnair
Mon 4/1109:00ORD - LHR
Nonstop7h 40mFinnair
Deal found 20/5£493
Mon 28/1015:45LHR - ORD
Nonstop9h 00mFinnair
Mon 4/1117:00ORD - LHR
Nonstop7h 40mFinnair
Deal found 19/5£494
Mon 9/915:35LHR - ORD
Nonstop8h 40mBritish Airways
Thu 26/919:10ORD - LHR
Nonstop7h 50mBritish Airways
Deal found 20/5£496
Tue 10/908:30LHR - ORD
Nonstop8h 55mAustrian Airlines
Tue 24/918:45ORD - LHR
Nonstop8h 15mAustrian Airlines
Deal found 20/5£499
Thu 14/1115:45LHR - ORD
Nonstop9h 00mBritish Airways
Mon 18/1117:00ORD - LHR
Nonstop7h 40mBritish Airways
Deal found 19/5£500

Find flights to Illinois within your budget

Locate flights to Illinois that fit your budget, with regularly updated fares and availability. In the last 7 days, Cheapflights users made a total of 853,037 searches and data was last updated on 21 May 2024.

Fly from

Any airport

Budget

£357 - £474

Route

Depart

Return

Price

London HeathrowChicago O'Hare Intl

LHR - ORD

LHRORD

London Heathrow

Sat 2/11

2 stops17h 25m

Chicago O'Hare Intl

Sat 9/11

2 stops14h 15m

£357

London GatwickChicago O'Hare Intl

LGW - ORD

LGWORD

London Gatwick

Tue 22/10

1 stop29h 45m

Chicago O'Hare Intl

Wed 30/10

1 stop13h 50m

£378

London GatwickChicago O'Hare Intl

LGW - ORD

LGWORD

London Gatwick

Fri 1/11

1 stop11h 20m

Chicago O'Hare Intl

Sat 16/11

1 stop10h 25m

£385

London GatwickChicago Midway

LGW - MDW

LGWMDW

London Gatwick

Tue 18/6

1 stop27h 31m

Chicago Midway

Tue 25/6

1 stop29h 24m

£405

London HeathrowChicago O'Hare Intl

LHR - ORD

LHRORD

London Heathrow

Thu 7/11

1 stop11h 45m

Chicago O'Hare Intl

Thu 28/11

1 stop10h 10m

£445

London HeathrowChicago O'Hare Intl

LHR - ORD

LHRORD

London Heathrow

Mon 28/10

1 stop26h 41m

Chicago O'Hare Intl

Mon 4/11

Nonstop7h 40m

£449

London GatwickChicago O'Hare Intl

LGW - ORD

LGWORD

London Gatwick

Fri 13/9

1 stop12h 54m

Chicago O'Hare Intl

Mon 30/9

1 stop16h 50m

£456

London HeathrowChicago O'Hare Intl

LHR - ORD

LHRORD

London Heathrow

Tue 12/11

Nonstop8h 55m

Chicago O'Hare Intl

Tue 26/11

1 stop11h 20m

£470

London HeathrowChicago O'Hare Intl

LHR - ORD

LHRORD

London Heathrow

Mon 3/6

Nonstop8h 35m

Chicago O'Hare Intl

Mon 10/6

Nonstop7h 50m

£474

Flights are sorted by cheapest first

Deals found on 20/5

Average price of flights to Illinois by month

Plan your trip to Illinois by taking into account the cheapest months to travel. The average price of a one-way flight to Illinois is currently £607 while a return flight costs £424. Price data was last updated on 19 May 2024.

Currently, January is the cheapest month in which you can book a flight to Illinois (average of £601). Flying to Illinois in July will prove the most costly (average of £766). There are multiple factors that influence the price of a flight so comparing airlines, departure airports and times can help keep costs down.

January

£473

February

£488

March

£479

April

£490

May

£515

June

£581

July

£603

August

£559

September

£527

October

£509

November

£488

December

£494

Temperature and rainfall in Illinois by month

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

CHI

Temperature

-5 - 23 °C

If weather is an important factor for your trip to Illinois, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 23.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around -5.0 C).

When is the best time to book a flight to Illinois?

Use this chart to determine the optimal time to book a return flight to Illinois. Price data was last updated on 10 May 2024.
The best time to book flights to Illinois is 84 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

Reviews of airlines servicing Illinois

Get insights into the airlines that provide service to Illinois. 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 Illinois. Reviews last updated 21 May 2024.
To help decide which airline to fly to Illinois, see what other customers have to say about Scandinavian Airlines, TAP AIR PORTUGAL and Icelandair. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
8.0
Very Good
10,615 reviews

Comfort

7.9

Entertainment

8.0

Boarding

8.2

Overall

8.0

Crew

8.6

Food

7.4

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.

8.0
Very Good
10,615 reviews
8.0
Very Good
10,615 reviews

Comfort

7.9

Entertainment

8.0

Boarding

8.2

Overall

8.0

Crew

8.6

Food

7.4

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.

7.9
Good
1,555 reviews
8.0
Very Good
10,615 reviews

Comfort

7.9

Entertainment

8.0

Boarding

8.2

Overall

8.0

Crew

8.6

Food

7.4

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.

7.8
Good
1,976 reviews
8.0
Very Good
10,615 reviews

Comfort

7.9

Entertainment

8.0

Boarding

8.2

Overall

8.0

Crew

8.6

Food

7.4

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.

7.8
Good
1,372 reviews
8.0
Very Good
10,615 reviews

Comfort

7.9

Entertainment

8.0

Boarding

8.2

Overall

8.0

Crew

8.6

Food

7.4

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.

7.7
Good
730 reviews
8.0
Very Good
10,615 reviews

Comfort

7.9

Entertainment

8.0

Boarding

8.2

Overall

8.0

Crew

8.6

Food

7.4

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.

Sitting along the banks of the Mississippi River and Lake Michigan, Illinois’s accessible location has for centuries made it an important hub. Historically emigrants from Mexico, Ireland and Poland would make the long journey over in search of work and a new home. Abraham Lincoln was among those who called Illinois home and the state honoured him by naming the small city of Lincoln after him – beforehe became president.

Most travellers booking flights to Illinois would probably pick Chicago as their city of choice for its renowned restaurant scene and shopping but there’s so much more to see in including 6,900 kilometres of shoreline and more than 50 state parks, making it one of the most scenic states in the US.

Illinois climate

Illinois’s winters are very cold and long with snow and icy winds from late November through to April. Summers, especially July and August, the weather tends to be hot and humid. The best times to visit is when the weather is perfect, in spring and autumn; tornado season can occur anytime between the months of March and May. Chicago’s summers are humid with highs of 30 degrees (Celsius) or more and its winters are bitterly cold.

Getting around Illinois

Public transportation is reliable and taxis are easy to find. Driving is not recommended because of heavy traffic and parking is almost impossible to find. The El, a system operated by The Chicago Transit Authority consists of elevated trains running 24 hours a day. During the summer rush hour a River Bus is available.

What is good to know if travelling to Illinois?

  • Chicago has a wealth of things to see and do. The best view of the city can be found at 1,450 feet from the top of North America’s tallest building – the Sears Tower. Head to the 103rd floor to the Skydeck where you can see the entire city laid out.  The Hancock Building is also well worth a visit and offers stunning city views from its observation deck or cocktail bar.
  • Don’t miss a trip to the Anderson Japanese Gardens in Rockford. Set on twelve acres the gardens are adorned with Japanese maples, magnolias, and rhododendrons and have several ponds and waterfalls with Japanese bronze structures surrounding them. There’s also an authentic tea house and contemporary “Garden of Reflection”.  
  • Visit the preserved Frank Lloyd Wright Museum on Chicago Avenue in Oak Park where the famed architect spent 20 years of his career and designed 130 of his masterpieces.  Wright lived here until 1909.
  • One of the most visited attractions in Chicago is the Art Institute of Chicago. Art lovers – well any visitor – shouldn’t miss a trip to the museum, it’s remarkable. The gargantuan building houses more than 250,000 works of art from all over the world including ancient Egyptian, Japanese, Korean, Greek and Roman relics. One of its highlights is the anthology of Impressionist art which has an impressive collection by Monet, Pablo Picasso and Henri Matisse to name a few.
  • Anyone interested in the lives of the Amish people should head to central Illinois where a welcoming group of Amish villages are set up. Take a tour of the community in the Illinois Amish Interpretative Centre in Arcola, visit a working farm and watch how supper is prepared and enjoyed in a family home.
  • When is the best time to fly to Illinois?

    Peak Season: Winter is peak season in Illinois for skiing and snowmobiling. In summer many different festivals take place in Chicago’s parks and neighbourhoods almost every weekend, making it difficult to find a cheap Illinois flight. Off Season: The best month to book a cheap Illinois flight is September, which is also the mildest month. Autumn is visually the prettiest time to visit when the temperature is still mild and the foliage is changing. The quietest months in Chicago are from January to March but they can also be the coldest and windiest.

  • Can I find cheaper flights to Illinois if I am willing to have stopovers?

    Yes, flights with stopovers are often cheaper than direct flights. Keep an eye out for flight deals to Illinois on Cheapflights that require 1 or 2 stops for potential cost savings.

  • What is the best airline to fly to Illinois?

    Based on reviews from Cheapflights users, Scandinavian Airlines is rated the highest out of the airlines that fly to Illinois.

  • What is the cheapest airport to fly to in Illinois?

    Chicago O'Hare Intl Airport is currently the cheapest airport to fly to in Illinois. One-way flights to Chicago O'Hare Intl Airport typically cost £37, while return flights cost around £50.

  • How much is a return flight to Illinois?

    A return flight to Illinois will typically cost around £284, however they can be found for as little as £63.

  • Where does the fastest flight to Illinois depart from?

    For those looking to save time traveling to Illinois, Edinburgh offers the quickest one-way flight (8 hours 25 minutes).

  • Does Chicago O'Hare Intl Airport have car hire?

    Yes. Those touching down at Chicago O'Hare Intl Airport can take advantage of the car hire services offered upon their arrival.

  • Are there hotels close to Chicago O'Hare Intl Airport?

    Yes. Chicago O'Hare Intl Airport has hotels nearby for those requiring accommodations. Hilton Chicago O'Hare Airport is the closest property to Chicago O'Hare Intl Airport (0.0 mi away from Chicago O'Hare Intl Airport).

See more FAQs

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