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$301+ 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 3/17. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — CHI
feb. 4 — feb. 111
mar. 2/4
mar. 2/11
1 adult, Economy
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Cheap flight deals from United Kingdom to Chicago

Discover tips and strategies to find the most affordable flight options for your journey from United Kingdom (GB0) to Chicago (CHI). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated enero 30, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$514
(Mytrip)

One-way from

$301
(Kiwi.com)

Popular in

August

Cheapest in

February

Average price

$635

Good round-trip deal

$657 or less

Good one-way deal

$651 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. 12% potential increase in price ($101 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($17 potential savings vs. average RT price).
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Average for round-trip flights in January 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 enero 30, 2025.

This Mytrip deal was found by Cheapflights users on 1/30. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 3/47:10 pmEDI - ORD
2 stops25h 20mMultiple Airlines
mar. 3/116:20 pmORD - EDI
2 stops21h 30mMultiple Airlines
Deal found 1/30$514
This FlightHub deal was found by Cheapflights users on 1/28. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 2/1410:20 amLHR - ORD
1 stop13h 30mScandinavian Airlines
lun. 2/177:40 pmORD - LHR
1 stop14h 20mScandinavian Airlines
Deal found 1/28$528
This United Airlines deal was found by Cheapflights users on 1/28. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 2/46:50 amLHR - ORD
1 stop11h 25mUnited Airlines
mar. 2/119:10 pmORD - LHR
Nonstop8h 05mUnited Airlines
Deal found 1/28$529
This Mytrip deal was found by Cheapflights users on 1/30. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 2/195:00 pmLTN - ORD
2 stops28h 05mMultiple Airlines
dom. 2/234:25 pmORD - LTN
2 stops23h 45mMultiple Airlines
Deal found 1/30$529
This The Travel House deal was found by Cheapflights users on 1/29. 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.
lun. 3/31:45 pmLHR - ORD
1 stop32h 30mLufthansa
sáb. 3/88:30 pmORD - LHR
1 stop30h 00mLufthansa
Deal found 1/29$530
This Mytrip deal was found by Cheapflights users on 1/29. 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. 1/3010:40 amLGW - ORD
1 stop34h 50mTAP AIR PORTUGAL
vie. 2/78:20 pmORD - LGW
1 stop13h 25mTAP AIR PORTUGAL
Deal found 1/29$531
This Kiwi.com deal was found by Cheapflights users on 1/29. 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.
mar. 2/116:45 pmLGW - ORD
1 stop27h 30mSWISS
lun. 2/247:05 pmORD - LGW
1 stop16h 45mSWISS
Deal found 1/29$532
This Mytrip deal was found by Cheapflights users on 1/29. 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.
mar. 3/411:00 amSTN - ORD
3 stops28h 44mMultiple Airlines
mar. 3/186:45 amORD - STN
3 stops22h 15mMultiple Airlines
Deal found 1/29$532
This Voliamo deal was found by Cheapflights users on 1/29. 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 Voliamo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 2/98:40 pmLHR - ORD
1 stop26h 40mIcelandair
mar. 3/117:30 pmORD - LHR
1 stop19h 00mIcelandair
Deal found 1/29$533
This Mytrip deal was found by Cheapflights users on 1/29. 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. 1/307:55 pmLHR - ORD
1 stop25h 35mTAP AIR PORTUGAL
vie. 2/78:20 pmORD - LHR
1 stop15h 10mTAP AIR PORTUGAL
Deal found 1/29$534
This Kiwi.com deal was found by Cheapflights users on 1/29. 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.
mié. 2/121:00 pmLGW - ORD
1 stop28h 16mMultiple Airlines
mié. 2/197:07 amORD - LGW
1 stop16h 53mMultiple Airlines
Deal found 1/29$535
This Air Canada deal was found by Cheapflights users on 1/28. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 2/186:50 amLHR - ORD
2 stops13h 55mAir Canada
mar. 2/2511:04 amORD - LHR
2 stops14h 06mAir Canada
Deal found 1/28$535

Find flights from United Kingdom to Chicago within your budget

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 enero 30, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

EdinburghChicago

EDI - ORD

EDIORD

Edinburgh Turnhouse

mar. 3/4

7:10 pm-2:30 pm

2 stops25h 20m

Chicago O'Hare Intl

mar. 3/11

6:20 pm-8:50 pm

2 stops21h 30m

$514

LondonChicago

LHR - ORD

LHRORD

London Heathrow

vie. 2/14

10:20 am-5:50 pm

1 stop13h 30m

Chicago O'Hare Intl

vie. 2/21

7:40 pm-4:00 pm

1 stop14h 20m

$528

LondonChicago

LHR - ORD

LHRORD

London Heathrow

mar. 2/11

6:50 am-12:15 pm

1 stop11h 25m

Chicago O'Hare Intl

mar. 2/18

9:10 pm-11:15 am

Nonstop8h 05m

$529

LondonChicago

LTN - ORD

LTNORD

London Luton

mié. 2/19

5:00 pm-3:05 pm

2 stops28h 05m

Chicago O'Hare Intl

dom. 2/23

4:25 pm-10:10 pm

2 stops23h 45m

$529

LondonChicago

LHR - ORD

LHRORD

London Heathrow

lun. 3/3

1:45 pm-4:15 pm

1 stop32h 30m

Chicago O'Hare Intl

sáb. 3/8

8:30 pm-8:30 am

1 stop30h 00m

$530

LondonChicago

LGW - ORD

LGWORD

London Gatwick

mar. 2/11

6:45 pm-4:15 pm

1 stop27h 30m

Chicago O'Hare Intl

lun. 2/24

7:05 pm-5:50 pm

1 stop16h 45m

$532

LondonChicago

LHR - ORD

LHRORD

London Heathrow

dom. 2/9

8:40 pm-5:20 pm

1 stop26h 40m

Chicago O'Hare Intl

mar. 3/11

7:30 pm-7:30 pm

1 stop19h 00m

$533

LondonChicago

LGW - ORD

LGWORD

London Gatwick

mar. 3/4

4:35 pm-3:30 pm

1 stop28h 55m

Chicago O'Hare Intl

dom. 3/9

9:25 pm-3:45 pm

1 stop13h 20m

$534

LondonChicago

LHR - ORD

LHRORD

London Heathrow

mar. 2/18

6:50 am-2:45 pm

2 stops13h 55m

Chicago O'Hare Intl

mar. 2/25

11:04 am-7:10 am

2 stops14h 06m

$535

LondonChicago

LGW - ORD

LGWORD

London Gatwick

lun. 2/10

11:55 am-5:20 pm

1 stop11h 25m

Chicago O'Hare Intl

mié. 3/5

6:30 pm-10:55 am

1 stop10h 25m

$537

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/30

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.

Travel insights for flights from United Kingdom to Chicago

Get recent, data-driven insights about flights from United Kingdom to Chicago including ideal travel times, pricing trends, and more.

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 $325). 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 enero 30, 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.

Weekly flight availability from United Kingdom to Chicago

Explore weekly flight availability from United Kingdom to Chicago. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated enero 30, 2025.

The most flights from GB0 to CHI are scheduled on a Thursday (38 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (22 on average).

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 enero 30, 2025.
Read through reviews of airlines operating flights from United Kingdom to Chicago, such as Singapore Airlines, Delta and KLM. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Singapore Airlines
8.1
Very good
1,317 reviews

Crew

8.6

Food

7.7

Entertainment

8.0

Boarding

8.2

Comfort

7.9

Overall

8.1

Reviews

1 / 20

8.0
Excellent

Anonymous,Dec 2024

NRT - LAX

Crew and in flight experience were great! I felt safe in the plane. Only downside was sitting in economy and the seat/person in front of me who had their seat reclined most of the flight (9 hrs) which made it difficult to eat or be fully comfortable.

Singapore Airlines
8.1
Very good
1,317 reviews
Singapore Airlines
8.1
Very good
1,317 reviews

Crew

8.6

Food

7.7

Entertainment

8.0

Boarding

8.2

Comfort

7.9

Overall

8.1

Reviews

1 / 20

8.0
Excellent

Anonymous,Dec 2024

NRT - LAX

Crew and in flight experience were great! I felt safe in the plane. Only downside was sitting in economy and the seat/person in front of me who had their seat reclined most of the flight (9 hrs) which made it difficult to eat or be fully comfortable.

Delta
8.0
Very good
8,454 reviews
Singapore Airlines
8.1
Very good
1,317 reviews

Crew

8.6

Food

7.7

Entertainment

8.0

Boarding

8.2

Comfort

7.9

Overall

8.1

Reviews

1 / 20

8.0
Excellent

Anonymous,Dec 2024

NRT - LAX

Crew and in flight experience were great! I felt safe in the plane. Only downside was sitting in economy and the seat/person in front of me who had their seat reclined most of the flight (9 hrs) which made it difficult to eat or be fully comfortable.

KLM
7.8
Good
1,335 reviews
Singapore Airlines
8.1
Very good
1,317 reviews

Crew

8.6

Food

7.7

Entertainment

8.0

Boarding

8.2

Comfort

7.9

Overall

8.1

Reviews

1 / 20

8.0
Excellent

Anonymous,Dec 2024

NRT - LAX

Crew and in flight experience were great! I felt safe in the plane. Only downside was sitting in economy and the seat/person in front of me who had their seat reclined most of the flight (9 hrs) which made it difficult to eat or be fully comfortable.

LOT
7.6
Good
1,097 reviews
Singapore Airlines
8.1
Very good
1,317 reviews

Crew

8.6

Food

7.7

Entertainment

8.0

Boarding

8.2

Comfort

7.9

Overall

8.1

Reviews

1 / 20

8.0
Excellent

Anonymous,Dec 2024

NRT - LAX

Crew and in flight experience were great! I felt safe in the plane. Only downside was sitting in economy and the seat/person in front of me who had their seat reclined most of the flight (9 hrs) which made it difficult to eat or be fully comfortable.

Finnair
7.6
Good
1,285 reviews
Singapore Airlines
8.1
Very good
1,317 reviews

Crew

8.6

Food

7.7

Entertainment

8.0

Boarding

8.2

Comfort

7.9

Overall

8.1

Reviews

1 / 20

8.0
Excellent

Anonymous,Dec 2024

NRT - LAX

Crew and in flight experience were great! I felt safe in the plane. Only downside was sitting in economy and the seat/person in front of me who had their seat reclined most of the flight (9 hrs) which made it difficult to eat or be fully comfortable.

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 Icelandair ($449), Aer Lingus ($457), and Scandinavian Airlines ($553).

  • 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 (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 $1,386, our data indicates the cheapest price to be $550. The most popular route (London Heathrow - Chicago O'Hare Intl), is priced around $434.

  • 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 $325). 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
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Valparaiso
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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.
Heathrow to O'Hare Intl flights
Charles de Gaulle to O'Hare Intl flights
Frankfurt to O'Hare Intl flights
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Gatwick to O'Hare Intl flights
London City to O'Hare Intl flights
Krakow to O'Hare Intl flights
Heathrow to Midway flights
Vienna to O'Hare Intl flights
Istanbul to O'Hare Intl flights
Frederic Chopin to Midway flights
Bruxelles-National to O'Hare Intl flights
Zurich to O'Hare Intl flights
Orly to O'Hare Intl flights
Athens to O'Hare Intl flights
Barcelona-El Prat to O'Hare Intl flights
Leonardo da Vinci/Fiumicino to O'Hare Intl flights
Dublin to O'Hare Intl flights
Munich to O'Hare Intl flights
Amsterdam to O'Hare Intl flights
Charles de Gaulle to Midway flights
Malpensa to O'Hare Intl flights
Madrid to Midway flights
Copenhagen to O'Hare Intl flights
Berlin to O'Hare Intl flights
Bruxelles-National to Midway flights
Leonardo da Vinci/Fiumicino to Midway flights
Barcelona-El Prat to Midway flights
Linate to O'Hare Intl flights
Prague to O'Hare Intl flights
Stansted to O'Hare Intl flights
Belgrade to O'Hare Intl flights
Sofia to O'Hare Intl flights
Duesseldorf Intl to O'Hare Intl flights
Sabiha Gokcen to O'Hare Intl flights
Hamburg to O'Hare Intl flights
Otopeni Intl to O'Hare Intl flights
Vicenza to O'Hare Intl flights
Luton to O'Hare Intl flights
Skopje to O'Hare Intl flights
Wroclaw to O'Hare Intl flights

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 enero 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest$451Average$636FlexibilityNo cancel feeOn-time76%
Scandinavian AirlinesCheapest$462Average$666FlexibilityNo cancel feeOn-time77%
TAP AIR PORTUGALCheapest$483Average$729FlexibilityNo cancel feeOn-timeN/A
Aer LingusCheapest$517Average$812FlexibilityNo cancel feeOn-timeN/A
IberiaCheapest$555Average$791FlexibilityNo cancel feeOn-time77%
American AirlinesCheapest$556Average$793FlexibilityNo cancel feeOn-time71%
British AirwaysCheapest$559Average$856FlexibilityNo cancel feeOn-time70%
FinnairCheapest$562Average$838FlexibilityNo cancel feeOn-time76%
United AirlinesCheapest$579Average$1,017FlexibilityNo cancel feeOn-time69%
LufthansaCheapest$660Average$1,067FlexibilityNo cancel feeOn-time76%
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