Chicago

$286+ Cheap flights from the United Kingdom to Chicago (CHI)

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 5/8. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — CHI
abr 2 — abr 91
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Cheap flight deals from United Kingdom to Chicago

Keep the following information in mind while searching for United Kingdom to Chicago flight deals. Data was last updated março 28, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$539
(United Airlines)

One-way from

$286
(Kiwi.com)

Popular in

August

Cheapest in

February

Average price

$640

Good round-trip deal

$685 or less

Good one-way deal

$660 or less
Provider with most accurate pricing for London (LON)-Chicago (CHI) flight deals.
Provider most trusted by Cheapflights users for London (LON)-Chicago (CHI) flights.
From United Kingdom to Chicago (CHI)
One-way flight from United Kingdom to Chicago (CHI)
Highest demand for flights based on searches. 12% potential increase in price ($99 potential increase over avg. RT price).
Cheapest flight prices on average. 2% potential price decrease ($18 potential savings vs. average RT price).
Average for round-trip flights in March 2025
Price to beat on a round-trip flight from United Kingdom to Chicago (CHI).
Price to beat on a one-way flight from United Kingdom to Chicago (CHI).

Find flight deals from United Kingdom to Chicago

Cheapest flights from United Kingdom to Chicago
Explore the most affordable flight options available from United Kingdom to Chicago. Find the lowest fares from popular airlines and budget airlines, with prices last updated on março 28, 2025.

This United Airlines deal was found by Cheapflights users on 3/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb 5/107:25 amLHR - ORD
1 stop12h 30mUnited Airlines
qua 5/144:25 pmORD - LHR
1 stop12h 15mUnited Airlines
Deal found 3/27$539
This Austrian Airlines deal was found by Cheapflights users on 3/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Austrian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sex 9/59:05 amLHR - ORD
1 stop34h 15mAustrian Airlines
ter 9/164:00 pmORD - LHR
Nonstop8h 20mAustrian Airlines
Deal found 3/28$540
This Mytrip deal was found by Cheapflights users on 3/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ter 4/228:15 amSTN - ORD
2 stops16h 00mMultiple Airlines
ter 4/297:25 pmORD - STN
2 stops21h 30mMultiple Airlines
Deal found 3/27$540
This Kiwi.com deal was found by Cheapflights users on 3/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sex 5/1610:00 amLGW - ORD
1 stop37h 41mMultiple Airlines
ter 5/209:55 amORD - LGW
1 stop15h 05mMultiple Airlines
Deal found 3/27$541
This Booking.com deal was found by Cheapflights users on 3/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
qua 7/93:40 pmLGW - ORD
1 stop11h 35mIcelandair
qua 7/167:25 pmORD - LGW
1 stop10h 20mIcelandair
Deal found 3/28$542
This Cheapflightsfares deal was found by Cheapflights users on 3/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb 4/267:40 amLHR - ORD
1 stop12h 20mBritish Airways
ter 4/298:20 pmORD - LHR
Nonstop8h 10mBritish Airways
Deal found 3/27$544
This Lufthansa deal was found by Cheapflights users on 3/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb 4/197:30 amLHR - ORD
2 stops16h 56mLufthansa
qua 5/142:35 pmORD - LHR
1 stop13h 05mLufthansa
Deal found 3/27$546
This Gotogate deal was found by Cheapflights users on 3/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
qua 6/41:05 pmLHR - ORD
1 stop11h 10mIcelandair
qua 6/2510:15 pmORD - LHR
1 stop16h 05mIcelandair
Deal found 3/27$548
This Flysmarter deal was found by Cheapflights users on 3/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Flysmarter is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb 4/196:30 amLHR - ORD
1 stop14h 15mMultiple Airlines
sex 5/212:00 pmORD - LHR
1 stop12h 35mMultiple Airlines
Deal found 3/28$553
This TravelUp deal was found by Cheapflights users on 3/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure TravelUp is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ter 4/228:45 amLCY - ORD
1 stop17h 10mMultiple Airlines
ter 4/292:20 pmORD - LCY
1 stop12h 30mMultiple Airlines
Deal found 3/27$556
This Mytrip deal was found by Cheapflights users on 3/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
qui 5/112:35 pmLTN - ORD
2 stops33h 35mMultiple Airlines
dom 5/117:15 pmORD - LTN
2 stops20h 15mMultiple Airlines
Deal found 3/26$556
This World Air Fares deal was found by Cheapflights users on 3/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure World Air Fares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sex 5/212:20 pmLGW - ORD
2 stops28h 16mFinnair
dom 5/410:10 pmORD - LGW
2 stops28h 00mFinnair
Deal found 3/27$559

Cheapflights Fare Finder

Customize your flight search to find flights from United Kingdom to Chicago 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 2,558,603 searches. Data last updated março 28, 2025.
Use the filters below to find and compare flights from the United Kingdom to Chicago that are best for you.

Fly from

United Kingdom

Fly to

Chicago

Route

Depart

Return

Price

LondonChicago

LHR - ORD

LHRORD

London Heathrow

sáb 5/10

7:25 am-1:55 pm

1 stop12h 30m

Chicago O'Hare Intl

qua 5/14

4:25 pm-10:40 am

1 stop12h 15m

$539

LondonChicago

STN - ORD

STNORD

London Stansted

ter 4/22

8:15 am-6:15 pm

2 stops16h 00m

Chicago O'Hare Intl

ter 4/29

7:25 pm-10:55 pm

2 stops21h 30m

$540

LondonChicago

LGW - ORD

LGWORD

London Gatwick

sex 5/16

10:00 am-5:41 pm

1 stop37h 41m

Chicago O'Hare Intl

ter 5/20

9:55 am-7:00 am

1 stop15h 05m

$541

LondonChicago

LGW - ORD

LGWORD

London Gatwick

ter 4/29

3:40 pm-6:15 pm

1 stop32h 35m

Chicago O'Hare Intl

seg 5/5

7:25 pm-11:45 am

1 stop10h 20m

$544

LondonChicago

LHR - ORD

LHRORD

London Heathrow

sáb 4/26

7:40 am-2:00 pm

1 stop12h 20m

Chicago O'Hare Intl

ter 4/29

8:20 pm-10:30 am

Nonstop8h 10m

$544

LondonChicago

LHR - ORD

LHRORD

London Heathrow

sáb 4/19

7:30 am-6:26 pm

2 stops16h 56m

Chicago O'Hare Intl

qua 5/14

2:35 pm-9:40 am

1 stop13h 05m

$546

LondonChicago

LHR - ORD

LHRORD

London Heathrow

qua 6/4

1:05 pm-6:15 pm

1 stop11h 10m

Chicago O'Hare Intl

qua 6/25

10:15 pm-8:20 pm

1 stop16h 05m

$548

LondonChicago

LHR - ORD

LHRORD

London Heathrow

sáb 4/19

6:30 am-2:45 pm

1 stop14h 15m

Chicago O'Hare Intl

sex 5/2

12:00 pm-6:35 am

1 stop12h 35m

$553

LondonChicago

LHR - ORD

LHRORD

London Heathrow

sáb 4/26

8:30 am-11:35 am

Nonstop9h 05m

Chicago O'Hare Intl

ter 4/29

9:20 pm-11:45 am

Nonstop8h 25m

$554

LondonChicago

LGW - ORD

LGWORD

London Gatwick

sex 5/2

12:20 pm-10:36 am

2 stops28h 16m

Chicago O'Hare Intl

dom 5/4

10:10 pm-8:10 am

2 stops28h 00m

$559

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/26

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

Have a flexible travel schedule? Discover the best time to fly to Chicago from United Kingdom with our price prediction graph.
Estimated round-trip 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 from the United Kingdom to Chicago

What is the cheapest month to book a flight from United Kingdom to Chicago?

Currently, August is the cheapest month in which you can book a flight from United Kingdom to Chicago (average of $245). Flying from United Kingdom to Chicago in March is currently the most expensive (average of $323). 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.

What is the cheapest time of day to fly from GB to CHI?

Find hourly flight availability from United Kingdom to Chicago. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated março 28, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from United Kingdom to Chicago as you normally would.

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 1.7 - 4.9 inches per month. August is typically the wettest month, when rainfall can reach 4.9 in. January is typically the driest time to visit Chicago when rainfall is around 1.7 in.

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 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 23.0 F).

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 março 28, 2025.
Read through reviews of airlines operating flights from United Kingdom to Chicago, such as Delta, KLM and Air Transat. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
8.0
Very good

Crew

8.5

Food

7.3

Overall

8.0

Entertainment

7.9

Comfort

8.0

Boarding

8.2

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
8.0
Very good
8.0
Very good

Crew

8.5

Food

7.3

Overall

8.0

Entertainment

7.9

Comfort

8.0

Boarding

8.2

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
8.0
Very good

Crew

8.5

Food

7.3

Overall

8.0

Entertainment

7.9

Comfort

8.0

Boarding

8.2

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
8.0
Very good

Crew

8.5

Food

7.3

Overall

8.0

Entertainment

7.9

Comfort

8.0

Boarding

8.2

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
8.0
Very good

Crew

8.5

Food

7.3

Overall

8.0

Entertainment

7.9

Comfort

8.0

Boarding

8.2

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
8.0
Very good

Crew

8.5

Food

7.3

Overall

8.0

Entertainment

7.9

Comfort

8.0

Boarding

8.2

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

Related info for your journey

Find useful and relevant information for your journey from United Kingdom to Chicago. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • What are the cheapest airlines to fly from United Kingdom to Chicago one-way?

    The cheapest airlines for a one-way flight from United Kingdom to Chicago are Air Transat ($456), TAP AIR PORTUGAL ($460), and Icelandair ($517).

  • What are the most popular routes from United Kingdom to Chicago?

  • What are the most reliable airlines from United Kingdom to Chicago?

    Consider Air Canada (93%), Austrian Airlines (93%) or United Airlines (93%) when booking your flight. These represent the most reliable airlines when flying from United Kingdom to Chicago.

  • What are the cheapest flights from United Kingdom to Chicago?

    Looking for the cheapest flight from United Kingdom to Chicago? While on average our users pay $2,299, our data indicates the cheapest price to be $549. The most popular route (London Heathrow - Chicago O'Hare Intl), is priced around $482.

  • Can I find deals for flights from United Kingdom to Chicago that include hotel bookings?

    Yes. In addition to deals on United Kingdom to Chicago flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from United Kingdom to Chicago?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from United Kingdom to Chicago.

  • Can I find deals for business class flights from United Kingdom to Chicago?

    Yes. Cheapflights offers flight deals from United Kingdom to Chicago by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from United Kingdom to Chicago?

    Currently, August is the cheapest month in which you can book a flight from United Kingdom to Chicago (average of $245). Flying from United Kingdom to Chicago in March is currently the most expensive (average of $323). 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

Traveling to a place near the United Kingdom?

Book flights to the United Kingdom if you plan to visit one of these locations
Merrillville
New Buffalo
Hammond
Benton Harbor
Porter
Lansing
Valparaiso
Chesterton

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for United Kingdom to Chicago

See prices for flight routes from nearby airports that may be better suited for you.

Top 10 airlines flying from United Kingdom to Chicago

Discover the top 10 airlines that operate flights from United Kingdom to Chicago. 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 2,558,603 searches. Data last updated março 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest$451Average$665FlexibilityNo cancel feeOn-time76%
TAP AIR PORTUGALCheapest$483Average$729FlexibilityNo cancel feeOn-timeN/A
Scandinavian AirlinesCheapest$492Average$675FlexibilityNo cancel feeOn-time77%
Aer LingusCheapest$522Average$844FlexibilityNo cancel feeOn-timeN/A
British AirwaysCheapest$559Average$858FlexibilityNo cancel feeOn-time70%
American AirlinesCheapest$562Average$788FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$562Average$924FlexibilityNo cancel feeOn-time69%
IberiaCheapest$582Average$777FlexibilityNo cancel feeOn-time77%
FinnairCheapest$613Average$838FlexibilityNo cancel feeOn-time76%
LufthansaCheapest$660Average$1,067FlexibilityNo cancel feeOn-time76%
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