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$356+ 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 12/7. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — CHI
nov. 29 — dic. 61
sáb. 11/29
sáb. 12/6
1 adult, Economy
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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 octubre 30, 2025.

Most accurate provider

CheapOair
3 stars

Most trusted provider

CheapOair
3 stars

Round-trip from

$532
(Gotogate)

One-way from

$356
(Kiwi.com)

Popular in

July

Cheapest in

February

Average price

$731

Good round-trip deal

$717 or less

Good one-way deal

$594 or less
Provider with most accurate pricing for London (LON)-Chicago (CHI) flight deals.
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Provider most trusted by Cheapflights users for London (LON)-Chicago (CHI) flights.
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From United Kingdom to Chicago (CHI)
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One-way flight from United Kingdom to Chicago (CHI)
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Highest demand for flights based on searches. 13% potential increase in price ($109 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($16 potential savings vs. average RT price).
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Average for round-trip flights in October 2025
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Price to beat on a round-trip flight from United Kingdom to Chicago (CHI).
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Price to beat on a one-way flight from United Kingdom to Chicago (CHI).
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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 octubre 30, 2025.

This Gotogate deal was found by Cheapflights users on 10/28. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 11/177:05 amLHR - ORD
2 stops15h 40mScandinavian Airlines
vie. 2/67:20 pmORD - LHR
1 stop32h 00mScandinavian Airlines
Deal found 10/28$532
This Kiwi.com deal was found by Cheapflights users on 10/29. 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.
jue. 11/136:40 amLHR - ORD
1 stop16h 05mScandinavian Airlines
dom. 11/237:20 pmORD - LHR
1 stop14h 40mScandinavian Airlines
Deal found 10/29$533
This Mytrip deal was found by Cheapflights users on 10/29. 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.
mié. 11/266:50 amLTN - ORD
2 stops16h 30mMultiple Airlines
mié. 12/36:30 pmORD - LTN
2 stops22h 35mMultiple Airlines
Deal found 10/29$533
This Mytrip deal was found by Cheapflights users on 10/29. 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.
mié. 11/266:30 amSTN - ORD
2 stops16h 50mMultiple Airlines
mié. 12/36:30 pmORD - STN
2 stops22h 20mMultiple Airlines
Deal found 10/29$533
This Mytrip deal was found by Cheapflights users on 10/29. 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.
jue. 12/48:50 amLGW - ORD
2 stops14h 30mMultiple Airlines
lun. 12/86:30 pmORD - LGW
2 stops20h 30mMultiple Airlines
Deal found 10/29$534
This Cheapflightsfares deal was found by Cheapflights users on 10/30. 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.
mié. 11/1910:20 amLHR - ORD
1 stop12h 25mScandinavian Airlines
mié. 11/267:20 pmORD - LHR
2 stops15h 05mScandinavian Airlines
Deal found 10/30$534
This Mytrip deal was found by Cheapflights users on 10/28. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 12/46:30 amSTN - ORD
2 stops16h 50mMultiple Airlines
lun. 12/86:30 pmORD - STN
2 stops17h 50mMultiple Airlines
Deal found 10/28$534
This Mytrip deal was found by Cheapflights users on 10/28. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 11/49:20 pmSTN - ORD
2 stops21h 50mMultiple Airlines
mié. 11/124:20 pmORD - STN
2 stops22h 35mMultiple Airlines
Deal found 10/28$535
This Kiwi.com deal was found by Cheapflights users on 10/30. 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.
lun. 11/172:00 pmLGW - ORD
2 stops34h 34mMultiple Airlines
vie. 2/610:18 amORD - LGW
1 stop17h 42mMultiple Airlines
Deal found 10/30$536
This Booking.com deal was found by Cheapflights users on 10/28. 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.
mié. 11/129:05 pmLHR - ORD
2 stops25h 40mScandinavian Airlines
dom. 11/167:20 pmORD - LHR
2 stops15h 05mScandinavian Airlines
Deal found 10/28$536
This Kiwi.com deal was found by Cheapflights users on 10/30. 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.
jue. 11/139:05 pmLHR - ORD
2 stops25h 40mScandinavian Airlines
dom. 11/167:20 pmORD - LHR
1 stop14h 40mScandinavian Airlines
Deal found 10/30$537
This The Travel House deal was found by Cheapflights users on 10/29. 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 The Travel House is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 11/1610:20 amLHR - ORD
1 stop12h 25mScandinavian Airlines
dom. 11/237:20 pmORD - LHR
2 stops15h 05mScandinavian Airlines
Deal found 10/29$538

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 octubre 30, 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

STN - ORD

STNORD

London Stansted

jue. 12/4

6:30 am-5:20 pm

2 stops16h 50m

Chicago O'Hare Intl

lun. 12/8

6:30 pm-9:20 pm

2 stops20h 50m

$533

LondonChicago

LHR - ORD

LHRORD

London Heathrow

mié. 1/21

7:50 pm-4:45 pm

2 stops26h 55m

Chicago O'Hare Intl

sáb. 1/24

7:20 pm-6:50 pm

2 stops17h 30m

$542

LondonChicago

LTN - ORD

LTNORD

London Luton

mié. 11/12

6:50 am-5:20 pm

2 stops16h 30m

Chicago O'Hare Intl

dom. 11/16

6:30 pm-10:00 pm

2 stops21h 30m

$555

ManchesterChicago

MAN - ORD

MANORD

Manchester

mar. 11/18

12:55 pm-4:45 pm

2 stops33h 50m

Chicago O'Hare Intl

lun. 12/1

7:20 pm-5:55 pm

2 stops16h 35m

$561

LondonChicago

LTN - ORD

LTNORD

London Luton

lun. 11/24

6:00 am-2:00 pm

1 stop14h 00m

Chicago O'Hare Intl

vie. 11/28

7:40 pm-3:25 pm

1 stop13h 45m

$563

LondonChicago

STN - ORD

STNORD

London Stansted

lun. 11/24

6:30 am-2:00 pm

1 stop13h 30m

Chicago O'Hare Intl

vie. 11/28

7:40 pm-4:35 pm

1 stop14h 55m

$563

LondonChicago

LHR - ORD

LHRORD

London Heathrow

vie. 3/20

6:40 am-5:45 pm

2 stops16h 05m

Chicago O'Hare Intl

dom. 3/22

8:20 pm-6:50 pm

2 stops17h 30m

$565

ManchesterChicago

MAN - ORD

MANORD

Manchester

lun. 11/24

10:10 am-4:45 pm

1 stop12h 35m

Chicago O'Hare Intl

lun. 12/1

7:20 pm-6:35 pm

1 stop17h 15m

$570

ManchesterChicago

MAN - ORD

MANORD

Manchester

lun. 11/24

10:10 am-4:45 pm

1 stop12h 35m

Chicago O'Hare Intl

vie. 11/28

7:20 pm-9:30 am

1 stop32h 10m

$570

ManchesterChicago

MAN - ORD

MANORD

Manchester

jue. 11/20

10:10 am-4:45 pm

1 stop12h 35m

Chicago O'Hare Intl

mié. 12/3

7:20 pm-6:35 pm

1 stop17h 15m

$570

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/28

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, September is the cheapest month in which you can book a flight from United Kingdom to Chicago (average of $204). Flying from United Kingdom to Chicago in July is currently the most expensive (average of $626). 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 octubre 30, 2025.

A simple way to save on the total cost of your ticket is to fly from United Kingdom to Chicago at noon. If you’re flexible enough to do this you can expect to save up to 21% on your trip compared to booking a flight in the afternoon.

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 octubre 30, 2025.
See what other customers who have flown with United Airlines, American Airlines, and Aer Lingus from the United Kingdom to Chicago have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
8,998 reviews

Food

6.6

Crew

8.1

Comfort

7.3

Overall

7.4

Boarding

7.7

Entertainment

7.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Oct 2025

YUL - ORD

Crew and customer service are 5 stars. I had a lot of luggage for a very long trip and they were nothing but helpful and found solutions to every problem. It was my first time flying with United, and they really are the friendly skies. Leg room however, on 2/3 flights was terrible. Same for entertainment: There was only a seat-mounted screen on 1/3 flights. It would have been nice to have on the longest leg of the journey.
United Airlines
7.4
Good
8,998 reviews
United Airlines
7.4
Good
8,998 reviews

Food

6.6

Crew

8.1

Comfort

7.3

Overall

7.4

Boarding

7.7

Entertainment

7.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Oct 2025

YUL - ORD

Crew and customer service are 5 stars. I had a lot of luggage for a very long trip and they were nothing but helpful and found solutions to every problem. It was my first time flying with United, and they really are the friendly skies. Leg room however, on 2/3 flights was terrible. Same for entertainment: There was only a seat-mounted screen on 1/3 flights. It would have been nice to have on the longest leg of the journey.
American Airlines
7.2
Good
11,032 reviews
United Airlines
7.4
Good
8,998 reviews

Food

6.6

Crew

8.1

Comfort

7.3

Overall

7.4

Boarding

7.7

Entertainment

7.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Oct 2025

YUL - ORD

Crew and customer service are 5 stars. I had a lot of luggage for a very long trip and they were nothing but helpful and found solutions to every problem. It was my first time flying with United, and they really are the friendly skies. Leg room however, on 2/3 flights was terrible. Same for entertainment: There was only a seat-mounted screen on 1/3 flights. It would have been nice to have on the longest leg of the journey.
Aer Lingus
7.2
Good
1,361 reviews
United Airlines
7.4
Good
8,998 reviews

Food

6.6

Crew

8.1

Comfort

7.3

Overall

7.4

Boarding

7.7

Entertainment

7.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Oct 2025

YUL - ORD

Crew and customer service are 5 stars. I had a lot of luggage for a very long trip and they were nothing but helpful and found solutions to every problem. It was my first time flying with United, and they really are the friendly skies. Leg room however, on 2/3 flights was terrible. Same for entertainment: There was only a seat-mounted screen on 1/3 flights. It would have been nice to have on the longest leg of the journey.
Icelandair
7.1
Good
562 reviews
United Airlines
7.4
Good
8,998 reviews

Food

6.6

Crew

8.1

Comfort

7.3

Overall

7.4

Boarding

7.7

Entertainment

7.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Oct 2025

YUL - ORD

Crew and customer service are 5 stars. I had a lot of luggage for a very long trip and they were nothing but helpful and found solutions to every problem. It was my first time flying with United, and they really are the friendly skies. Leg room however, on 2/3 flights was terrible. Same for entertainment: There was only a seat-mounted screen on 1/3 flights. It would have been nice to have on the longest leg of the journey.
British Airways
6.7
Okay
7,487 reviews
United Airlines
7.4
Good
8,998 reviews

Food

6.6

Crew

8.1

Comfort

7.3

Overall

7.4

Boarding

7.7

Entertainment

7.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Oct 2025

YUL - ORD

Crew and customer service are 5 stars. I had a lot of luggage for a very long trip and they were nothing but helpful and found solutions to every problem. It was my first time flying with United, and they really are the friendly skies. Leg room however, on 2/3 flights was terrible. Same for entertainment: There was only a seat-mounted screen on 1/3 flights. It would have been nice to have on the longest leg of the journey.

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.

  • How long is the flight from United Kingdom to Chicago?

    Scandinavian Airlines, Icelandair, and KLM can get you from United Kingdom to Chicago in just under 11h 25m. Your travel time can differ by up to 15h 30m. United Kingdom and Chicago are separated by a distance of 3960 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • 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 SWISS ($529), Austrian Airlines ($530), and Delta ($531).

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

    The most popular flight routes from United Kingdom to Chicago are London Heathrow - Chicago O'Hare Intl, London Gatwick - Chicago O'Hare Intl and London City - Chicago O'Hare Intl.

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

    Consider Air Canada (84%), Austrian Airlines (84%) or United Airlines (84%) 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 $1,663, our data indicates the cheapest price to be $532. The most popular route (London Heathrow - Chicago O'Hare Intl), is priced around $498.

  • 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, September is the cheapest month in which you can book a flight from United Kingdom to Chicago (average of $204). Flying from United Kingdom to Chicago in July is currently the most expensive (average of $626). 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 Chicago?

Book flights to Chicago if you plan to visit one of these locations
Merrillville
Lansing
Hammond
Porter
Benton Harbor

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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.
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Leonardo da Vinci/Fiumicino to Midway flights
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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 octubre 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest$390Average$710FlexibilityNo cancel feeOn-time76%
Aer LingusCheapest$446Average$793FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$485Average$811FlexibilityNo cancel feeOn-time69%
Austrian AirlinesCheapest$530Average$897FlexibilityNo cancel feeOn-time78%
British AirwaysCheapest$531Average$775FlexibilityNo cancel feeOn-time70%
TAP AIR PORTUGALCheapest$558Average$789FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$572Average$816FlexibilityNo cancel feeOn-time71%
IberiaCheapest$599Average$794FlexibilityNo cancel feeOn-time77%
FinnairCheapest$626Average$852FlexibilityNo cancel feeOn-time76%
Brussels AirlinesCheapest$633Average$832FlexibilityNo cancel feeOn-timeN/A

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