Find flights
Deals
Airlines

£324+ 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 8/5. Fares are subject to change and may not be available on all flights or dates of travel.
— CHI
30 Mar — 6 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 25 March 2025.

Return from

£415

One-way from

£324

Popular in

August

Cheapest in

February

Average price

£495

Good round-trip deal

£557 or less

Good one-way deal

£584 or less
Icelandair
  • Icelandair
  • 6/6-8/6
  • 2 total stops
  • 30h 05m total
  • London to Chicago
Search Deals
8/5
  • 8/5
  • 2 total stops
  • 31h 09m total
  • London to Chicago
Search Deals
Highest demand for flights based on searches. 12% potential increase in price (£59 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£11 potential savings vs. average return price).
Search Deals
Average for return flights in March 2025
Search Deals
Price to beat on a round-trip flight from London to Chicago.
Search Deals
Price to beat on a one-way flight from London to Chicago.
Search Deals

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 25 March 2025.

Fri 6/613:05LHR - ORD
1 stop11h 10mIcelandair
Sun 8/619:25ORD - LHR
1 stop18h 55mIcelandair
Deal found 24/3£415
Thu 8/514:50LGW - ORD
2 stops31h 20mMultiple Airlines
Thu 15/519:15ORD - LGW
2 stops20h 10mMultiple Airlines
Deal found 24/3£416
Sun 4/506:00LHR - ORD
1 stop12h 10mMultiple Airlines
Sun 11/518:05ORD - LHR
Nonstop8h 15mMultiple Airlines
Deal found 23/3£416
Sun 20/406:00LHR - ORD
1 stop13h 20mAustrian Airlines
Sun 27/411:15ORD - LHR
1 stop17h 25mAustrian Airlines
Deal found 24/3£417
Sat 26/407:40LHR - ORD
1 stop12h 20mBritish Airways
Fri 9/520:30ORD - LHR
Nonstop8h 00mBritish Airways
Deal found 24/3£418
Sat 3/506:30LHR - ORD
1 stop12h 25mLufthansa
Sat 10/516:05ORD - LHR
Nonstop8h 15mLufthansa
Deal found 24/3£418
Wed 30/415:40LGW - ORD
1 stop11h 35mIcelandair
Mon 5/519:25ORD - LGW
1 stop10h 20mIcelandair
Deal found 24/3£419
Wed 23/421:05LGW - ORD
1 stop22h 25mBritish Airways
Mon 28/411:36ORD - LGW
2 stops16h 39mBritish Airways
Deal found 23/3£421
Fri 6/613:30LTN - ORD
2 stops32h 40mMultiple Airlines
Sun 8/619:15ORD - LTN
2 stops20h 15mMultiple Airlines
Deal found 24/3£425
Sun 4/506:50LHR - ORD
1 stop11h 10mUnited Airlines
Mon 12/517:55ORD - LHR
1 stop10h 45mUnited Airlines
Deal found 24/3£428
Wed 23/406:50LHR - ORD
2 stops14h 05mAir Canada
Tue 29/414:05ORD - LHR
1 stop15h 45mAir Canada
Deal found 24/3£430
Fri 6/613:55STN - ORD
2 stops32h 15mMultiple Airlines
Sun 8/619:15ORD - STN
2 stops20h 00mMultiple Airlines
Deal found 24/3£431

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 25 March 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

LHR - ORD

LHRORD

London Heathrow

Fri 6/6

13:05-18:15

1 stop11h 10m

Chicago O'Hare Intl

Sun 8/6

19:25-20:20

1 stop18h 55m

£415

LondonChicago

LGW - ORD

LGWORD

London Gatwick

Thu 8/5

14:50-16:10

2 stops31h 20m

Chicago O'Hare Intl

Thu 15/5

19:15-21:25

2 stops20h 10m

£416

LondonChicago

LHR - ORD

LHRORD

London Heathrow

Sun 4/5

06:00-12:10

1 stop12h 10m

Chicago O'Hare Intl

Sun 11/5

18:05-08:20

Nonstop8h 15m

£416

LondonChicago

LHR - ORD

LHRORD

London Heathrow

Sat 26/4

07:40-14:00

1 stop12h 20m

Chicago O'Hare Intl

Fri 9/5

20:30-10:30

Nonstop8h 00m

£418

LondonChicago

LHR - ORD

LHRORD

London Heathrow

Sat 3/5

06:30-12:55

1 stop12h 25m

Chicago O'Hare Intl

Tue 13/5

18:05-08:20

Nonstop8h 15m

£418

LondonChicago

LHR - ORD

LHRORD

London Heathrow

Mon 21/4

11:05-14:10

Nonstop9h 05m

Chicago O'Hare Intl

Mon 28/4

18:05-08:20

Nonstop8h 15m

£419

LondonChicago

LGW - ORD

LGWORD

London Gatwick

Wed 30/4

15:40-21:15

1 stop11h 35m

Chicago O'Hare Intl

Mon 5/5

19:25-11:45

1 stop10h 20m

£419

LondonChicago

LGW - ORD

LGWORD

London Gatwick

Wed 23/4

21:05-13:30

1 stop22h 25m

Chicago O'Hare Intl

Mon 28/4

11:36-10:15

2 stops16h 39m

£421

LondonChicago

LTN - ORD

LTNORD

London Luton

Fri 6/6

13:30-16:10

2 stops32h 40m

Chicago O'Hare Intl

Sun 8/6

19:15-21:30

2 stops20h 15m

£425

LondonChicago

LHR - ORD

LHRORD

London Heathrow

Sun 4/5

06:50-12:00

1 stop11h 10m

Chicago O'Hare Intl

Tue 13/5

15:52-11:35

1 stop13h 43m

£428

Flights are sorted by cheapest return flights first.

Deals found on 23/3

Showing 1-10 of 60 results
1
2
3
...
6

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 21 March 2025.

The best time to book flights to Chicago is 44 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 14 hours 26 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 Sunday at midday, when prices are usually at their highest.

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 £548

Aer Lingus

Aer Lingus

From £580

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 25 March 2025.
To help decide which airline to fly to Chicago, see what other customers have to say about Delta, KLM and Air Transat. 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
7,890 reviews
Check prices

Overall

8.0

Boarding

8.2

Crew

8.5

Entertainment

7.9

Comfort

8.0

Food

7.3

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
7,890 reviews
Delta
8.0
Very Good
7,890 reviews
Check prices

Overall

8.0

Boarding

8.2

Crew

8.5

Entertainment

7.9

Comfort

8.0

Food

7.3

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
1,318 reviews
Delta
8.0
Very Good
7,890 reviews
Check prices

Overall

8.0

Boarding

8.2

Crew

8.5

Entertainment

7.9

Comfort

8.0

Food

7.3

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
Air Transat
7.8
Good
381 reviews
Delta
8.0
Very Good
7,890 reviews
Check prices

Overall

8.0

Boarding

8.2

Crew

8.5

Entertainment

7.9

Comfort

8.0

Food

7.3

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
1,061 reviews
Delta
8.0
Very Good
7,890 reviews
Check prices

Overall

8.0

Boarding

8.2

Crew

8.5

Entertainment

7.9

Comfort

8.0

Food

7.3

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
1,266 reviews
Delta
8.0
Very Good
7,890 reviews
Check prices

Overall

8.0

Boarding

8.2

Crew

8.5

Entertainment

7.9

Comfort

8.0

Food

7.3

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 £17, while return flights cost around £55.

  • How much is a return flight to Chicago?

    A return flight to Chicago will typically cost around £214, however they can be found for as little as £71.

  • Where does the fastest flight to Chicago depart from?

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

  • Which airport is closest to National Museum of Mexican Art?

    f being close to National Museum of Mexican Art 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).

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.

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights to Chicago?

Deals for Chicago 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 to your preference, such as price, airport, cabin class, and plenty of other options.

Why should you use Cheapflights to find cheap flight tickets to Chicago?

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 Chicago.

Can Cheapflights find flights to Chicago with no change fees?

Need flexible booking options for your flight to Chicago ? 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 to Chicago become cheaper?

Yes, Cheapflights has a feature called Price Alerts, which notifies users when flight prices change. Track prices for your flight to Chicago today and book when you’re ready!

100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.