HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Chicago

$411+ Cheap flights from London (LON) 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 6/15. Fares are subject to change and may not be available on all flights or dates of travel.
LON — CHI
Jan 26 — Feb 21
Sun 1/26
Sun 2/2
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from London to Chicago with Cheapflights

1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”
2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.
3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

The best prices from London to Chicago are usually found in February or November, booked 64 days in advance, depart on a Wednesday or Thursday and return on a Wednesday

Cheap flight deals from London to Chicago

Discover tips and strategies to find the most affordable flight options for your journey from London (LON) 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 January 21, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$532
(Gotogate)

One-way from

$411
(Mytrip)

Popular in

August

Cheapest in

February

Average price

$636

Good round-trip deal

$736 or less

Good one-way deal

$667 or less
Provider with most accurate pricing for London (LON)-Chicago (CHI) flight deals.
Search Deals
Provider most trusted by Cheapflights users for London (LON)-Chicago (CHI) flights.
Search Deals
From London (LON) to Chicago (CHI)
Search Deals
One-way flight from London (LON) to Chicago (CHI)
Search Deals
Highest demand for flights based on searches. 12% potential increase in price ($100 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($16 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2025
Search Deals
Price to beat on a round-trip flight from London (LON) to Chicago (CHI).
Search Deals
Price to beat on a one-way flight from London (LON) to Chicago (CHI).
Search Deals

Find flight deals from London to Chicago

Cheapest flights from London to Chicago
Explore the most affordable flight options available from London to Chicago. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 21, 2025.

This Gotogate deal was found by Cheapflights users on 1/21. 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.
Thu 3/137:40 amLHR - ORD
1 stop12h 30mLufthansa
Thu 3/276:50 pmORD - LHR
Nonstop8h 05mLufthansa
Deal found 1/21$532
This Scandinavian Airlines deal was found by Cheapflights users on 1/21. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/197:50 pmLHR - ORD
2 stops28h 00mScandinavian Airlines
Sun 3/27:40 pmORD - LHR
1 stop16h 00mScandinavian Airlines
Deal found 1/21$533
This Mytrip deal was found by Cheapflights users on 1/21. 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.
Mon 6/233:40 pmLGW - ORD
1 stop11h 35mIcelandair
Mon 7/710:15 pmORD - LGW
1 stop10h 25mIcelandair
Deal found 1/21$536
This Gotogate deal was found by Cheapflights users on 1/21. 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.
Thu 3/207:25 pmLHR - ORD
1 stop24h 40mAustrian Airlines
Tue 3/256:50 pmORD - LHR
Nonstop8h 05mAustrian Airlines
Deal found 1/21$537
This United Airlines deal was found by Cheapflights users on 1/19. 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.
Sun 2/169:30 amLHR - ORD
1 stop33h 55mUnited Airlines
Sun 2/238:02 pmORD - LHR
1 stop31h 38mUnited Airlines
Deal found 1/19$538
This Mytrip deal was found by Cheapflights users on 1/21. 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.
Mon 3/36:30 amSTN - ORD
2 stops16h 50mMultiple Airlines
Thu 3/66:30 pmORD - STN
2 stops21h 20mMultiple Airlines
Deal found 1/21$538
This Air Canada deal was found by Cheapflights users on 1/20. 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.
Wed 2/196:50 amLHR - ORD
2 stops13h 55mMultiple Airlines
Wed 2/2611:35 amORD - LHR
2 stops14h 55mMultiple Airlines
Deal found 1/20$539
This British Airways deal was found by Cheapflights users on 1/20. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/193:45 pmLHR - ORD
Nonstop9h 00mBritish Airways
Wed 2/269:45 pmORD - LHR
Nonstop7h 45mBritish Airways
Deal found 1/20$540
This American Airlines deal was found by Cheapflights users on 1/20. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 1/2711:55 amLHR - ORD
Nonstop8h 50mAmerican Airlines
Mon 2/106:35 pmORD - LHR
Nonstop7h 40mAmerican Airlines
Deal found 1/20$541
This Kiwi.com deal was found by Cheapflights users on 1/21. 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.
Mon 2/36:45 pmLGW - ORD
1 stop27h 30mSWISS
Mon 2/177:05 pmORD - LGW
1 stop16h 45mSWISS
Deal found 1/21$542
This Expedia deal was found by Cheapflights users on 1/21. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/189:15 amLCY - ORD
1 stop13h 00mSWISS
Tue 2/257:05 pmORD - LCY
1 stop11h 45mSWISS
Deal found 1/21$542
This Mytrip deal was found by Cheapflights users on 1/21. 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.
Tue 3/47:55 pmLGW - ORD
3 stops30h 10mMultiple Airlines
Mon 3/1710:25 pmORD - LGW
2 stops19h 25mMultiple Airlines
Deal found 1/21$543

Find flights from London to Chicago within your budget

Customize your flight search to find flights from London 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 January 21, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

LondonChicago

LHR - ORD

LHRORD

London Heathrow

Thu 3/13

7:40 am-3:10 pm

1 stop12h 30m

Chicago O'Hare Intl

Thu 3/27

6:50 pm-7:55 am

Nonstop8h 05m

$532

LondonChicago

LHR - ORD

LHRORD

London Heathrow

Wed 2/19

7:50 pm-5:50 pm

2 stops28h 00m

Chicago O'Hare Intl

Sun 3/2

7:40 pm-5:40 pm

1 stop16h 00m

$533

LondonChicago

LGW - ORD

LGWORD

London Gatwick

Mon 6/23

3:40 pm-9:15 pm

1 stop11h 35m

Chicago O'Hare Intl

Mon 7/7

10:15 pm-2:40 pm

1 stop10h 25m

$536

LondonChicago

LHR - ORD

LHRORD

London Heathrow

Thu 3/20

7:25 pm-3:05 pm

1 stop24h 40m

Chicago O'Hare Intl

Tue 3/25

6:50 pm-7:55 am

Nonstop8h 05m

$537

LondonChicago

LHR - ORD

LHRORD

London Heathrow

Sun 2/16

9:30 am-1:25 pm

1 stop33h 55m

Chicago O'Hare Intl

Sun 2/23

8:02 pm-9:40 am

1 stop31h 38m

$538

LondonChicago

STN - ORD

STNORD

London Stansted

Mon 3/3

6:30 am-5:20 pm

2 stops16h 50m

Chicago O'Hare Intl

Thu 3/6

6:30 pm-9:50 pm

2 stops21h 20m

$538

LondonChicago

LHR - ORD

LHRORD

London Heathrow

Wed 2/19

6:50 am-2:45 pm

2 stops13h 55m

Chicago O'Hare Intl

Wed 2/26

11:35 am-8:30 am

2 stops14h 55m

$539

LondonChicago

LHR - ORD

LHRORD

London Heathrow

Wed 2/19

3:45 pm-6:45 pm

Nonstop9h 00m

Chicago O'Hare Intl

Wed 2/26

9:45 pm-11:30 am

Nonstop7h 45m

$540

LondonChicago

LGW - ORD

LGWORD

London Gatwick

Mon 2/3

6:45 pm-4:15 pm

1 stop27h 30m

Chicago O'Hare Intl

Mon 2/17

7:05 pm-5:50 pm

1 stop16h 45m

$542

LondonChicago

LCY - ORD

LCYORD

London City

Tue 2/18

9:15 am-4:15 pm

1 stop13h 00m

Chicago O'Hare Intl

Tue 2/25

7:05 pm-12:50 pm

1 stop11h 45m

$542

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/21

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

Compare providers for flights from London to Chicago

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from London to Chicago in January.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*3 stars
CheapflightsfaresPrice Accuracy3 starsTrust Score*1 star

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on London-Chicago flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on London-Chicago flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from London-Chicago flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on London-Chicago flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for London-Chicago flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from London to Chicago

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

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

How far ahead should I book a flight from London to Chicago?

Use this chart to determine the optimal time to book a round-trip flight from London to Chicago. Price data was last updated on January 17, 2025.

The best time to book flights from London 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.

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

Currently, August is the cheapest month in which you can book a flight from London to Chicago (average of $245). Flying from London to Chicago in March is currently the most expensive (average of $320). 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 LON to CHI?

Find hourly flight availability from London 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 January 21, 2025.

Unlike in the afternoon, when flights are generally more expensive, you can save up to 17% on flights from London to Chicago by exploring options for tickets in the evening.

What is the cheapest day to fly from London to Chicago?

Use this chart to determine the cheapest time to fly round-trip from London to Chicago. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their London to Chicago flight should consider departing on Tuesday afternoons when fares are most often at their lowest. Monday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from London to Chicago

Explore weekly flight availability from London 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 January 21, 2025.

The most flights from LON to CHI are scheduled on a Monday (36 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (30 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 January 21, 2025.
Read reviews from past customers who have flown Lufthansa, SWISS and Delta from London to Chicago. 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
8,521 reviews

Comfort

8.0

Food

7.3

Boarding

8.2

Overall

8.0

Entertainment

7.9

Crew

8.6

Reviews

1 / 10

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

Delta
8.0
Very good
8,521 reviews
Delta
8.0
Very good
8,521 reviews

Comfort

8.0

Food

7.3

Boarding

8.2

Overall

8.0

Entertainment

7.9

Crew

8.6

Reviews

1 / 10

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

KLM
7.8
Good
1,341 reviews
Delta
8.0
Very good
8,521 reviews

Comfort

8.0

Food

7.3

Boarding

8.2

Overall

8.0

Entertainment

7.9

Crew

8.6

Reviews

1 / 10

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

LOT
7.6
Good
1,117 reviews
Delta
8.0
Very good
8,521 reviews

Comfort

8.0

Food

7.3

Boarding

8.2

Overall

8.0

Entertainment

7.9

Crew

8.6

Reviews

1 / 10

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

Finnair
7.6
Good
1,286 reviews
Delta
8.0
Very good
8,521 reviews

Comfort

8.0

Food

7.3

Boarding

8.2

Overall

8.0

Entertainment

7.9

Crew

8.6

Reviews

1 / 10

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

Austrian Airlines
7.6
Good
786 reviews
Delta
8.0
Very good
8,521 reviews

Comfort

8.0

Food

7.3

Boarding

8.2

Overall

8.0

Entertainment

7.9

Crew

8.6

Reviews

1 / 10

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 London 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 flying from London to Chicago round-trip?

    Currently priced at $532, Lufthansa will fly you from London to Chicago and back. In addition to Lufthansa, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Scandinavian Airlines and Icelandair - these airlines can fly you to your destination from $533 and $536, respectively. Lufthansa is currently priced 24% below the average price you’ll pay for this route.

  • What are the cheapest airlines to fly from London to Chicago one-way?

    $440 is the cheapest one-way deal found within the past few days, from Icelandair. You may also be able to find cheap deals on Aer Lingus and Virgin Atlantic, with prices starting from $442 and $509, respectively.

  • What are the most popular routes from London to Chicago?

    While some choose either London Gatwick - Chicago O'Hare Intl or London City - Chicago O'Hare Intl, London Heathrow - Chicago O'Hare Intl is the most popular route from London to Chicago.

  • What are the most reliable airlines from London to Chicago?

    Before booking your flight to Chicago from London, check out the most reliable airlines to get you to your destination on time: Air Canada (93%), Austrian Airlines (93%), United Airlines( 93%).

  • What are the cheapest flights from London to Chicago?

    While on average a flight from London to Chicago is generally $1,362, our data shows the cheapest flight currently is $578. When looking at the most popular route, (London Heathrow - Chicago O'Hare Intl), you can expect to pay $417 for that flight.

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

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

  • How can I find direct flights from London to Chicago?

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

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

    Yes. Cheapflights offers flight deals from London 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 London to Chicago?

    Currently, August is the cheapest month in which you can book a flight from London to Chicago (average of $245). Flying from London to Chicago in March is currently the most expensive (average of $320). 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 London?

Book flights to London 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

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for London to Chicago

See prices for flight routes from nearby airports that may be better suited for you.
Heathrow to O'Hare Intl flights
Gatwick to O'Hare Intl flights
London City to O'Hare Intl flights
Heathrow to Midway flights
Stansted to O'Hare Intl flights
Manchester to O'Hare Intl flights
Luton to O'Hare Intl flights
Edinburgh to O'Hare Intl flights
Heathrow to St. Louis flights
Gatwick to St. Louis flights
Birmingham to O'Hare Intl flights
Newcastle upon Tyne to O'Hare Intl flights
Birmingham to Midway flights
Manchester to St. Louis flights
Bristol to O'Hare Intl flights
Leeds to O'Hare Intl flights
Southampton to O'Hare Intl flights
Birmingham to St. Louis flights
Norwich to O'Hare Intl flights
Leeds to St. Louis flights
Liverpool to O'Hare Intl flights
Edinburgh to St. Louis flights
Exeter to O'Hare Intl flights
Newcastle upon Tyne to St. Louis flights
Heathrow to Evansville flights
Liverpool to St. Louis flights
Gatwick to Evansville flights

Top 10 airlines flying from London to Chicago

Discover the top 10 airlines that operate flights from London 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 January 21, 2025.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest$451Average$566FlexibilityNo cancel feeOn-time76%
Scandinavian AirlinesCheapest$462Average$666FlexibilityNo cancel feeOn-time77%
TAP AIR PORTUGALCheapest$483Average$729FlexibilityNo cancel feeOn-timeN/A
IberiaCheapest$555Average$791FlexibilityNo cancel feeOn-time77%
American AirlinesCheapest$556Average$789FlexibilityNo cancel feeOn-time71%
FinnairCheapest$562Average$838FlexibilityNo cancel feeOn-time76%
United AirlinesCheapest$579Average$1,075FlexibilityNo cancel feeOn-time69%
Aer LingusCheapest$579Average$734FlexibilityNo cancel feeOn-timeN/A
British AirwaysCheapest$587Average$809FlexibilityNo cancel feeOn-time70%
LufthansaCheapest$660Average$1,067FlexibilityNo cancel feeOn-time76%
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.