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£256+ Cheap flights to Illinois

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 27/1. Fares are subject to change and may not be available on all flights or dates of travel.
— ORD
20 Nov — 27 Nov1
1 adult

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 943,810 searches and data was last updated on 15 November 2024.

Fly from

Any airport

Route

Depart

Return

Price

LondonChicago

LGW - ORD

LGWORD

London Gatwick

Wed 26/3

11:55-18:20

1 stop11h 25m

Chicago O'Hare Intl

Tue 1/4

19:30-11:45

1 stop10h 15m

£445

LondonChicago

LGW - ORD

LGWORD

London Gatwick

Thu 20/2

15:55-15:30

1 stop29h 35m

Chicago O'Hare Intl

Sun 16/3

21:25-15:45

1 stop13h 20m

£446

LondonChicago

LHR - ORD

LHRORD

London Heathrow

Wed 23/4

11:55-10:16

1 stop28h 21m

Chicago O'Hare Intl

Sat 10/5

19:25-09:30

1 stop32h 05m

£447

LondonChicago

LHR - ORD

LHRORD

London Heathrow

Wed 4/12

08:50-17:55

1 stop15h 05m

Chicago O'Hare Intl

Wed 11/12

19:40-13:25

1 stop11h 45m

£448

LondonChicago

LHR - ORD

LHRORD

London Heathrow

Mon 10/3

06:40-16:50

1 stop15h 10m

Chicago O'Hare Intl

Sun 16/3

20:10-16:00

1 stop14h 50m

£449

LondonChicago

LGW - ORD

LGWORD

London Gatwick

Thu 5/12

10:00-15:30

3 stops35h 30m

Chicago O'Hare Intl

Sun 8/12

20:25-21:05

2 stops18h 40m

£457

LondonChicago

LHR - ORD

LHRORD

London Heathrow

Wed 27/11

06:00-15:30

1 stop15h 30m

Chicago O'Hare Intl

Fri 6/12

20:20-18:55

1 stop16h 35m

£468

LondonChicago

LHR - ORD

LHRORD

London Heathrow

Tue 4/3

14:10-16:50

Nonstop8h 40m

Chicago O'Hare Intl

Thu 20/3

09:55-05:55

1 stop15h 00m

£468

LondonChicago

LHR - ORD

LHRORD

London Heathrow

Thu 5/12

09:55-15:30

2 stops35h 35m

Chicago O'Hare Intl

Sun 8/12

20:25-07:40

3 stops29h 15m

£469

LondonChicago

LHR - ORD

LHRORD

London Heathrow

Sat 26/4

15:50-09:01

1 stop23h 11m

Chicago O'Hare Intl

Sat 3/5

13:45-06:45

1 stop11h 00m

£483

Flights are sorted by cheapest first

Deals found on 14/11

Showing 1-10 of 60 results
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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 943,810 searches and data was last updated on 15 November 2024.

Return from

£445

One-way from

£256

Popular in

August

Cheapest in

February

Average price

£492
Icelandair
  • Icelandair
  • 26/3-1/4
  • 2 total stops
  • 21h 40m total
  • London to Chicago
27/1
  • 27/1
  • 1 total stop
  • 15h 31m total
  • London to Illinois
High demand for flights, 13% potential price rise
Best time to find cheap flights, 2% potential price drop
Average for return flights in November 2024

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 15 November 2024
Explore Illinois

Find flight deals to Illinois

Cheapest flights to Illinois
Explore the most affordable flight options available to Illinois. Find the lowest fares based on data from user searches, with prices last updated on 15 November 2024.

Thu 5/1211:55LGW - ORD
1 stop11h 25mIcelandair
Sun 8/1218:30ORD - LGW
1 stop10h 25mIcelandair
Deal found 15/11£447
Wed 4/1208:50LHR - ORD
1 stop15h 05mAer Lingus
Wed 11/1219:40ORD - LHR
1 stop11h 45mAer Lingus
Deal found 14/11£448
Thu 5/1216:30LHR - ORD
1 stop29h 00mTAP AIR PORTUGAL
Fri 6/1220:20ORD - LHR
1 stop16h 35mTAP AIR PORTUGAL
Deal found 14/11£450
Thu 21/1115:55LGW - ORD
1 stop29h 35mTAP AIR PORTUGAL
Fri 29/1120:20ORD - LGW
1 stop13h 25mTAP AIR PORTUGAL
Deal found 14/11£450
Fri 6/1215:35LHR - ORD
2 stops30h 15mScandinavian Airlines
Sun 8/1219:10ORD - LHR
2 stops17h 40mScandinavian Airlines
Deal found 15/11£451
Thu 5/1210:00LGW - ORD
3 stops35h 30mMultiple Airlines
Sun 8/1220:25ORD - LGW
2 stops18h 40mMultiple Airlines
Deal found 15/11£457
Thu 5/1209:55LHR - ORD
2 stops35h 35mMultiple Airlines
Sun 8/1220:25ORD - LHR
3 stops29h 15mMultiple Airlines
Deal found 14/11£469
Wed 27/1112:15LHR - ORD
1 stop11h 05mIcelandair
Tue 10/1218:30ORD - LHR
1 stop19h 00mIcelandair
Deal found 14/11£476
Wed 27/1106:50LTN - ORD
1 stop17h 05mMultiple Airlines
Fri 6/1219:40ORD - LTN
1 stop17h 10mMultiple Airlines
Deal found 15/11£483
Wed 27/1106:30STN - ORD
1 stop17h 25mMultiple Airlines
Fri 6/1219:40ORD - STN
1 stop16h 30mMultiple Airlines
Deal found 15/11£483
Fri 6/1214:00LGW - MDW
2 stops39h 29mMultiple Airlines
Mon 9/1207:25MDW - LGW
1 stop18h 50mMultiple Airlines
Deal found 15/11£487
Mon 2/1216:30LHR - ORD
1 stop27h 55mFinnair
Mon 9/1222:00ORD - LHR
Nonstop7h 40mFinnair
Deal found 15/11£493

Best time to book a flight to Illinois

Have a flexible travel schedule? Discover the best time to fly to Illinois 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.

Travel insights for flights to Illinois

Get recent, data-driven insights about flights to Illinois including ideal travel times, pricing trends, and more.

How long is the flight to Illinois?

On average, a flight from London to Illinois takes 20 hours 41 minutes. Flights to Illinois from other popular cities in United Kingdom will vary in length. Below are a few examples of popular routes and their flight times.

When is the cheapest time to fly to Illinois?

Use this chart to determine the cheapest time to fly return from London to Illinois. Price data was last updated on 28 April 2024.

Users looking for the lowest fares to Illinois should consider flying on Tuesday afternoons, when prices are typically cheapest. Budget-minded travellers will want to avoid Saturday evenings, when prices are usually at their highest.

Weekly flight availability to Illinois

The most flights from London to Illinois are scheduled on a Monday (36 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (30 on average).

What are the cheapest airlines that fly to Illinois?

The cheapest airlines flying from London to Illinois are Icelandair, British Airways and TAP AIR PORTUGAL.

Rainfall in Illinois by month

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

In terms of precipitation, rainfall in Illinois ranges from 43.0 - 125.0 inches per month. August is typically the wettest month, when rainfall can reach 125.0 mm. January is typically the driest time to visit Illinois when rainfall is around 43.0 mm.

Temperature in Illinois by month

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

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).

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 15 November 2024.
To help decide which airline to fly to Illinois, see what other customers have to say about Icelandair, TAP AIR PORTUGAL and Aer Lingus. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
8.0
Very Good
8,786 reviews

Crew

8.5

Overall

8.0

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Food

7.3

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

8.0
Very Good
8,786 reviews
8.0
Very Good
8,786 reviews

Crew

8.5

Overall

8.0

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Food

7.3

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

7.8
Good
1,350 reviews
8.0
Very Good
8,786 reviews

Crew

8.5

Overall

8.0

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Food

7.3

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

7.8
Good
387 reviews
8.0
Very Good
8,786 reviews

Crew

8.5

Overall

8.0

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Food

7.3

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

7.7
Good
1,304 reviews
8.0
Very Good
8,786 reviews

Crew

8.5

Overall

8.0

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Food

7.3

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

7.6
Good
1,175 reviews
8.0
Very Good
8,786 reviews

Crew

8.5

Overall

8.0

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Food

7.3

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

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, Icelandair 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 is currently the cheapest airport to fly to in Illinois. One-way flights to Chicago O'Hare Intl typically cost £30, while return flights cost around £55.

  • How much is a return flight to Illinois?

    A return flight to Illinois will typically cost around £169, however they can be found for as little as £70.

  • Where does the fastest flight to Illinois depart from?

    For those looking to save time traveling to Illinois, London offers the quickest one-way flight (8 hours 35 minutes).

  • Which airport is closest to Drury Lane Theater?

    f being close to Drury Lane Theater is important to you, you’ll want to land at Chicago O'Hare Intl Airport.

  • Does Chicago O'Hare Intl have car hire?

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

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

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

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

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