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£373+ Cheap flights to Chicago

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 22/6. Fares are subject to change and may not be available on all flights or dates of travel.
— CHI
16 Apr — 23 Apr1
1 adult

Flights to Chicago in 2025

Find the latest flights to Chicago in 2025, with up-to-date prices and availability. In the last 7 days, Cheapflights users made a total of 858,174 searches and data was last updated on 11 April 2025.

Return from

£420

One-way from

£373

Popular in

August

Cheapest in

February

Average price

£522

Good round-trip deal

£553 or less

Good one-way deal

£567 or less
6/5-12/5
  • 6/5-12/5
  • 3 total stops
  • 55h 40m total
  • London to Chicago
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22/6
  • 22/6
  • 2 total stops
  • 28h 23m total
  • London to Chicago
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Highest demand for flights based on searches. 13% potential increase in price (£64 potential increase over avg. return price).
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Cheapest flight prices on average. 2% potential price decrease (£11 potential savings vs. average return price).
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Average for return flights in April 2025
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Price to beat on a round-trip flight from London to Chicago.
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Price to beat on a one-way flight from London to Chicago.
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Find flight deals to Chicago

Cheapest flights to Chicago
Explore the most affordable flight options available to Chicago. Find the lowest fares based on data from user searches, with prices last updated on 11 April 2025.

Tue 6/510:00LGW - ORD
1 stop37h 41mMultiple Airlines
Mon 12/514:36ORD - LGW
2 stops17h 59mMultiple Airlines
Deal found 10/4£420
Tue 6/515:30LHR - ORD
Nonstop8h 45mBritish Airways
Mon 12/517:40ORD - LHR
Nonstop7h 40mBritish Airways
Deal found 10/4£420
Wed 7/509:05STN - ORD
2 stops18h 10mMultiple Airlines
Wed 14/519:25ORD - STN
2 stops21h 05mMultiple Airlines
Deal found 10/4£421
Mon 12/521:25LHR - ORD
1 stop26h 50mIcelandair
Tue 27/519:25ORD - LHR
1 stop10h 30mIcelandair
Deal found 10/4£422
Wed 30/409:25LCY - ORD
1 stop12h 30mSWISS
Tue 13/519:05ORD - LCY
1 stop11h 25mSWISS
Deal found 11/4£423
Tue 16/909:50LHR - ORD
1 stop11h 55mAmerican Airlines
Sun 21/915:14ORD - LHR
1 stop10h 36mAmerican Airlines
Deal found 11/4£423
Wed 7/509:55LHR - ORD
1 stop10h 45mVirgin Atlantic
Wed 14/513:30ORD - LHR
2 stops17h 05mVirgin Atlantic
Deal found 10/4£424
Wed 30/408:40LHR - ORD
1 stop13h 15mMultiple Airlines
Wed 7/511:10ORD - LHR
2 stops13h 20mMultiple Airlines
Deal found 9/4£429
Fri 2/515:05LGW - ORD
2 stops25h 31mAmerican Airlines
Thu 15/512:11ORD - LGW
1 stop13h 59mAmerican Airlines
Deal found 10/4£431
Fri 16/512:20LGW - ORD
1 stop31h 15mBritish Airways
Mon 19/517:57ORD - LGW
1 stop32h 38mBritish Airways
Deal found 11/4£432
Thu 25/908:45LCY - ORD
1 stop17h 10mLufthansa
Mon 29/916:00ORD - LCY
1 stop18h 25mLufthansa
Deal found 10/4£435
Thu 1/508:40LHR - ORD
2 stops17h 32mAir Canada
Thu 8/512:00ORD - LHR
1 stop12h 35mAir Canada
Deal found 10/4£435

Cheapflights Fare Finder

Locate flights to Chicago that fit your budget, with regularly updated fares and availability. In the last 7 days, Cheapflights users made a total of 858,174 searches and data was last updated on 11 April 2025.
Use the filters below to find and compare flights to Chicago that are best for you.

Fly from

London

Route

Depart

Return

Price

LondonChicago

LGW - ORD

LGWORD

London Gatwick

Tue 6/5

10:00-17:41

1 stop37h 41m

Chicago O'Hare Intl

Mon 12/5

14:36-14:35

2 stops17h 59m

£420

LondonChicago

LHR - ORD

LHRORD

London Heathrow

Tue 6/5

15:30-18:15

Nonstop8h 45m

Chicago O'Hare Intl

Mon 12/5

17:40-07:20

Nonstop7h 40m

£420

LondonChicago

STN - ORD

STNORD

London Stansted

Wed 7/5

09:05-21:15

2 stops18h 10m

Chicago O'Hare Intl

Wed 14/5

19:25-22:30

2 stops21h 05m

£421

LondonChicago

LHR - ORD

LHRORD

London Heathrow

Mon 12/5

21:25-18:15

1 stop26h 50m

Chicago O'Hare Intl

Tue 27/5

19:25-11:55

1 stop10h 30m

£422

LondonChicago

LCY - ORD

LCYORD

London City

Wed 30/4

09:25-15:55

1 stop12h 30m

Chicago O'Hare Intl

Tue 13/5

19:05-12:30

1 stop11h 25m

£423

LondonChicago

LHR - ORD

LHRORD

London Heathrow

Tue 16/9

09:50-15:45

1 stop11h 55m

Chicago O'Hare Intl

Sun 21/9

15:14-07:50

1 stop10h 36m

£423

LondonChicago

LHR - ORD

LHRORD

London Heathrow

Wed 7/5

09:55-14:40

1 stop10h 45m

Chicago O'Hare Intl

Wed 14/5

13:30-12:35

2 stops17h 05m

£424

LondonChicago

LHR - ORD

LHRORD

London Heathrow

Wed 30/4

08:40-15:55

1 stop13h 15m

Chicago O'Hare Intl

Wed 7/5

11:10-06:30

2 stops13h 20m

£429

LondonChicago

LGW - ORD

LGWORD

London Gatwick

Fri 2/5

15:05-10:36

2 stops25h 31m

Chicago O'Hare Intl

Thu 15/5

13:29-08:10

2 stops12h 41m

£431

LondonChicago

LGW - ORD

LGWORD

London Gatwick

Fri 16/5

12:20-13:35

1 stop31h 15m

Chicago O'Hare Intl

Mon 19/5

17:57-08:35

1 stop32h 38m

£432

Flights are sorted by cheapest return flights first.

Deals found on 10/4

Showing 1-10 of 60 results
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Best time to book a flight to Chicago

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

Cheapflights Insights

Everything you need to know about your flight to Chicago

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

Use this chart to determine the optimal time to book a return flight from London to Chicago. Price data was last updated on 4 April 2025.

The best time to book flights to Chicago is 69 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.

How long is the flight to Chicago?

On average, a flight from London to Chicago takes 13 hours 48 minutes. Flights to Chicago 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 Chicago?

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

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

Weekly flight availability to Chicago

The most flights from London to Chicago are scheduled on a Monday (53 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (48 on average).

What are the most popular airlines that fly to Chicago?

The most popular airlines flying from London to Chicago are British Airways, Finnair and Lufthansa.

British Airways

British Airways

From £541

Finnair

Finnair

From £612

Lufthansa

Lufthansa

From £554

Aer Lingus

Aer Lingus

From £575

What are the cheapest airlines that fly to Chicago?

The cheapest airlines flying from London to Chicago are Icelandair, Scandinavian Airlines and TAP AIR PORTUGAL.

Rainfall in Chicago by month

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

In terms of precipitation, rainfall in Chicago 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 Chicago when rainfall is around 43.0 mm.

Temperature in Chicago by month

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

If weather is an important factor for your trip to Chicago, 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 Chicago

Get insights into the airlines that provide service to Chicago. 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 Chicago. Reviews last updated 11 April 2025.
To help decide which airline to fly to Chicago, see what other customers have to say about Delta, KLM and LOT. 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
7,911 reviews
Check prices

Comfort

7.9

Overall

8.0

Entertainment

7.9

Food

7.3

Boarding

8.2

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Delta
8.0
Very Good
7,911 reviews
Delta
8.0
Very Good
7,911 reviews
Check prices

Comfort

7.9

Overall

8.0

Entertainment

7.9

Food

7.3

Boarding

8.2

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
KLM
7.8
Good
1,321 reviews
Delta
8.0
Very Good
7,911 reviews
Check prices

Comfort

7.9

Overall

8.0

Entertainment

7.9

Food

7.3

Boarding

8.2

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
LOT
7.6
Good
1,065 reviews
Delta
8.0
Very Good
7,911 reviews
Check prices

Comfort

7.9

Overall

8.0

Entertainment

7.9

Food

7.3

Boarding

8.2

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Finnair
7.6
Good
1,269 reviews
Delta
8.0
Very Good
7,911 reviews
Check prices

Comfort

7.9

Overall

8.0

Entertainment

7.9

Food

7.3

Boarding

8.2

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Austrian Airlines
7.6
Good
774 reviews
Delta
8.0
Very Good
7,911 reviews
Check prices

Comfort

7.9

Overall

8.0

Entertainment

7.9

Food

7.3

Boarding

8.2

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

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

FAQs about flying to Chicago

  • Can I find cheaper flights to Chicago 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 Chicago on Cheapflights that require 1 or 2 stops for potential cost savings.

  • What is the best airline to fly to Chicago?

    Based on reviews from Cheapflights users, Icelandair is rated the highest out of the airlines that fly to Chicago.

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

    Chicago Midway is currently the cheapest airport to fly to in Chicago. One-way flights to Chicago Midway typically cost £27, while return flights cost around £71.

  • How much is a return flight to Chicago?

    A return flight to Chicago will typically cost around £444, however they can be found for as little as £91.

  • Where does the fastest flight to Chicago depart from?

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

  • 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).

See more FAQs

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