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$412+ Cheap flights from Heathrow (LHR) 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 2/4. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — CHI
Jan 26 — Feb 21
Sun 1/26
Sun 2/2
1 adult, Economy
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The best prices from London Heathrow to Chicago are usually found in February or March, booked 70 days in advance, depart on a Wednesday or Thursday and return on a Wednesday

Cheap flight deals from Heathrow to Chicago

Discover tips and strategies to find the most affordable flight options for your journey from Heathrow (LHR) 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

$412
(Kiwi.com)

Popular in

August

Cheapest in

February

Average price

$633

Good round-trip deal

$736 or less

Good one-way deal

$667 or less
Provider with most accurate pricing for London Heathrow-Chicago (CHI) flight deals.
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Provider most trusted by Cheapflights users for London Heathrow-Chicago (CHI) flights.
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From London Heathrow to Chicago (CHI)
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One-way flight from London Heathrow to Chicago (CHI)
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Highest demand for flights based on searches. 10% potential increase in price ($84 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 January 2025
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Price to beat on a round-trip flight from London Heathrow to Chicago (CHI).
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Price to beat on a one-way flight from London Heathrow to Chicago (CHI).
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Find flight deals from Heathrow to Chicago

Cheapest flights from Heathrow to Chicago
Explore the most affordable flight options available from Heathrow 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 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 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 TravelUp 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 TravelUp is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/1912:20 pmLHR - MDW
1 stop11h 51mKLM
Wed 2/262:08 pmMDW - LHR
1 stop10h 42mKLM
Deal found 1/20$543
This Icelandair 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/139:25 pmLHR - ORD
1 stop26h 55mIcelandair
Fri 4/2510:15 pmORD - LHR
1 stop16h 05mIcelandair
Deal found 1/20$548
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 1/278:40 amLHR - MDW
2 stops15h 34mDelta
Mon 2/102:08 pmMDW - LHR
1 stop10h 42mDelta
Deal found 1/20$549
This KLM 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/16:30 amLHR - ORD
1 stop13h 40mKLM
Mon 9/222:00 pmORD - LHR
1 stop12h 05mKLM
Deal found 1/20$552
This SmartFares 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 1/2712:20 pmLHR - MDW
1 stop11h 54mVirgin Atlantic
Mon 2/102:08 pmMDW - LHR
1 stop10h 42mVirgin Atlantic
Deal found 1/20$552

Find flights from Heathrow to Chicago within your budget

Customize your flight search to find flights from Heathrow 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

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

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

LHR - MDW

LHRMDW

London Heathrow

Wed 2/19

12:20 pm-6:11 pm

1 stop11h 51m

Chicago Midway

Wed 2/26

2:08 pm-6:50 am

1 stop10h 42m

$543

LondonChicago

LHR - ORD

LHRORD

London Heathrow

Sun 4/13

9:25 pm-6:20 pm

1 stop26h 55m

Chicago O'Hare Intl

Sat 4/26

7:30 pm-11:55 am

1 stop10h 25m

$548

LondonChicago

LHR - MDW

LHRMDW

London Heathrow

Mon 2/17

8:40 am-6:11 pm

2 stops15h 31m

Chicago Midway

Mon 2/24

12:44 pm-6:20 am

1 stop11h 36m

$549

LondonChicago

LHR - ORD

LHRORD

London Heathrow

Mon 2/3

10:00 am-9:15 pm

2 stops17h 15m

Chicago O'Hare Intl

Mon 2/17

2:59 pm-7:55 am

1 stop10h 56m

$553

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/21

Showing 1-10 of 35 results
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Compare providers for flights from Heathrow 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 Heathrow to Chicago in January.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*3 stars
business-class.comPrice Accuracy3 starsTrust Score*3 stars
CheapflightsfaresPrice Accuracy3 starsTrust Score*1 star
oojoPrice Accuracy3 starsTrust Score*2 stars
Kiwi.comPrice Accuracy3 starsTrust Score*3 stars
Thrive TravelPrice 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 Heathrow Airport-Chicago flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on London Heathrow Airport-Chicago flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from London Heathrow Airport-Chicago flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on London Heathrow Airport-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 Heathrow Airport-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 Heathrow to Chicago

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

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

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

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

The price you pay for your flight from London Heathrow Airport to Chicago may vary depending on when you book. For the best chance of a lower fare, look to book 70 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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

Currently, August is the cheapest month in which you can book a flight from London Heathrow Airport to Chicago (average of $245). Flying from London Heathrow Airport 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 LHR to CHI?

Find hourly flight availability from Heathrow 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.

A simple way to save on the total cost of your ticket is to fly from London Heathrow Airport to Chicago in the evening. If you’re flexible enough to do this you can expect to save up to 32% on your trip compared to booking a flight in the afternoon.

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

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

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

Weekly flight availability from London Heathrow Airport to Chicago

Explore weekly flight availability from Heathrow 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 LHR 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, Scandinavian Airlines and United Airlines 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

Crew

8.6

Overall

8.0

Food

7.3

Boarding

8.2

Comfort

8.0

Entertainment

7.9

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

Crew

8.6

Overall

8.0

Food

7.3

Boarding

8.2

Comfort

8.0

Entertainment

7.9

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

Crew

8.6

Overall

8.0

Food

7.3

Boarding

8.2

Comfort

8.0

Entertainment

7.9

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

Crew

8.6

Overall

8.0

Food

7.3

Boarding

8.2

Comfort

8.0

Entertainment

7.9

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

Crew

8.6

Overall

8.0

Food

7.3

Boarding

8.2

Comfort

8.0

Entertainment

7.9

Reviews

1 / 10

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

SWISS
7.5
Good
1,600 reviews
Delta
8.0
Very good
8,521 reviews

Crew

8.6

Overall

8.0

Food

7.3

Boarding

8.2

Comfort

8.0

Entertainment

7.9

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 Heathrow 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 Heathrow Airport to Chicago round-trip?

    Currently priced at $532, Lufthansa will fly you from London Heathrow Airport 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 United Airlines - these airlines can fly you to your destination from $533 and $538, respectively. Lufthansa is currently priced 25% below the average price you’ll pay for this route.

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

    For one-way options, check prices for Icelandair. According to our data, you can fly for as low as $440. Users have also found prices from $442 and $509 on Aer Lingus and Virgin Atlantic, respectively.

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

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from London Heathrow Airport to Chicago on time: Air Canada (93%), Austrian Airlines (93%), United Airlines (93%).

  • What are the cheapest flights from London Heathrow Airport to Chicago?

    On average you can expect to pay $1,362 for a flight from London Heathrow Airport to Chicago. The cheapest flight overall is $578 while the most popular route, (London Heathrow - Chicago O'Hare Intl) is currently priced at $417.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Heathrow 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 Heathrow Airport to Chicago?

    Currently, August is the cheapest month in which you can book a flight from London Heathrow Airport to Chicago (average of $245). Flying from London Heathrow Airport 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 Heathrow Airport?

Book flights to London Heathrow Airport if you plan to visit one of these locations
Merrillville
New Buffalo
Hammond
Benton Harbor
Porter
Lansing
Valparaiso
Chesterton

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Top 10 airlines flying from Heathrow to Chicago

Discover the top 10 airlines that operate flights from Heathrow 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$567FlexibilityNo cancel feeOn-time76%
Scandinavian AirlinesCheapest$462Average$666FlexibilityNo cancel feeOn-time77%
TAP AIR PORTUGALCheapest$483Average$729FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$556Average$791FlexibilityNo cancel feeOn-time71%
FinnairCheapest$562Average$809FlexibilityNo cancel feeOn-time76%
IberiaCheapest$564Average$787FlexibilityNo cancel feeOn-time77%
Aer LingusCheapest$578Average$733FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$579Average$1,035FlexibilityNo cancel feeOn-time69%
British AirwaysCheapest$592Average$804FlexibilityNo cancel feeOn-time70%
LufthansaCheapest$660Average$1,067FlexibilityNo cancel feeOn-time76%
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