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O'Hare Intl

$457+ Cheap flights from Heathrow (LHR) to O'Hare Intl (ORD)

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 4/22. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — ORD
Apr 1 — Apr 81
Wed 4/1
Wed 4/8
1 adult, Economy
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Cheapflights Tip: The best prices from London Heathrow to Chicago O'Hare Intl are usually found in September or November, booked 58 days in advance, depart on a Wednesday or Friday and return on a Tuesday

Cheap flight deals from Heathrow to O'Hare Intl

Cheapest flights from Heathrow to O'Hare Intl
Explore the most affordable flight options available from Heathrow to O'Hare Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 2, 2026.

This Mytrip deal was found by Cheapflights users on 2/28. 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.
Mon 4/136:40 am
LHR
-
ORD
2 stops23h 42m
Multiple Airlines
Mon 4/2712:47 pm
ORD
-
LHR
2 stops21h 38m
Multiple Airlines
Deal found 2/28$552
This Cheapflightsfares deal was found by Cheapflights users on 2/26. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/178:00 am
LHR
-
ORD
1 stop14h 00m
TAP AIR PORTUGAL
Fri 4/246:00 pm
ORD
-
LHR
1 stop18h 50m
TAP AIR PORTUGAL
Deal found 2/26$553
This Trip.com deal was found by Cheapflights users on 3/1. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/158:00 am
LHR
-
ORD
1 stop14h 00m
TAP AIR PORTUGAL
Sun 4/266:00 pm
ORD
-
LHR
1 stop22h 00m
TAP AIR PORTUGAL
Deal found 3/1$554
This deal was found by Cheapflights users on 3/2. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/261:05 pm
LHR
-
ORD
1 stop11h 10m
Icelandair
Thu 7/27:25 pm
ORD
-
LHR
1 stop10h 30m
Icelandair
Deal found 3/2$555
This The Travel House deal was found by Cheapflights users on 2/28. 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 The Travel House is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/293:35 pm
LHR
-
ORD
2 stops31h 10m
Scandinavian Airlines
Mon 11/27:20 pm
ORD
-
LHR
1 stop32h 00m
Scandinavian Airlines
Deal found 2/28$556
This The Travel House deal was found by Cheapflights users on 3/1. 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.
Mon 11/95:00 pm
LHR
-
ORD
1 stop29h 45m
Scandinavian Airlines
Fri 11/137:20 pm
ORD
-
LHR
1 stop32h 00m
Scandinavian Airlines
Deal found 3/1$557
This Kiwi.com deal was found by Cheapflights users on 2/26. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/198:00 am
LHR
-
ORD
1 stop14h 00m
TAP AIR PORTUGAL
Sat 4/256:05 pm
ORD
-
LHR
1 stop12h 40m
TAP AIR PORTUGAL
Deal found 2/26$559
This TravelUp deal was found by Cheapflights users on 2/28. 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 TravelUp is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/78:05 am
LHR
-
ORD
1 stop20h 55m
JetBlue
Tue 3/2412:20 pm
ORD
-
LHR
1 stop16h 10m
JetBlue
Deal found 2/28$560
This Kiwi.com deal was found by Cheapflights users on 2/27. 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.
Mon 4/136:40 am
LHR
-
ORD
1 stop15h 30m
Scandinavian Airlines
Mon 4/207:15 pm
ORD
-
LHR
1 stop14h 45m
Scandinavian Airlines
Deal found 2/27$561
This The Travel House deal was found by Cheapflights users on 3/1. 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.
Fri 10/236:40 am
LHR
-
ORD
1 stop15h 30m
Scandinavian Airlines
Sun 11/17:20 pm
ORD
-
LHR
2 stops39h 05m
Scandinavian Airlines
Deal found 3/1$562
This Kiwi.com deal was found by Cheapflights users on 2/27. 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.
Fri 3/136:40 am
LHR
-
ORD
1 stop16h 15m
Scandinavian Airlines
Mon 3/168:20 pm
ORD
-
LHR
2 stops15h 05m
Scandinavian Airlines
Deal found 2/27$563

Find flight deals from Heathrow to O'Hare Intl

Discover tips and strategies to find the most affordable flight options for your journey from Heathrow (LHR) to O'Hare Intl (ORD). 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 March 2, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$552
(Mytrip)

One-way from

$457
(Kiwi.com)

Popular in

July

Cheapest in

September

Average price

$775

Good round-trip deal

$639 or less

Good one-way deal

$602 or less
Provider with most accurate pricing for London Heathrow-Chicago O'Hare Intl flight deals.
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Provider most trusted by Cheapflights users for London Heathrow-Chicago O'Hare Intl flights.
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From London Heathrow to Chicago O'Hare Intl
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One-way flight from London Heathrow to Chicago O'Hare Intl
Search Deals
Highest demand for flights based on searches. 11% potential increase in price ($96 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($19 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2026
Search Deals
Price to beat on a round-trip flight from London Heathrow to Chicago O'Hare Intl.
Search Deals
Price to beat on a one-way flight from London Heathrow to Chicago O'Hare Intl.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Heathrow to O'Hare Intl 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 March 2, 2026.
Use the filters below to find and compare flights from London Heathrow Airport to Chicago O'Hare Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

LondonChicago

LHR - ORD

LHRORD

London Heathrow

Thu 3/19

7:05 am-5:45 pm

2 stops15h 40m

Chicago O'Hare Intl

Mon 4/20

7:15 pm-6:50 pm

2 stops17h 35m

$620

LondonChicago

LHR - ORD

LHRORD

London Heathrow

Tue 4/14

7:50 pm-4:10 pm

2 stops26h 20m

Chicago O'Hare Intl

Sat 4/25

7:15 pm-4:25 pm

2 stops15h 10m

$620

LondonChicago

LHR - ORD

LHRORD

London Heathrow

Sat 5/2

9:25 pm-6:15 pm

1 stop26h 50m

Chicago O'Hare Intl

Thu 5/7

7:25 pm-8:20 pm

1 stop18h 55m

$630

LondonChicago

LHR - ORD

LHRORD

London Heathrow

Thu 3/12

9:05 pm-5:55 pm

2 stops25h 50m

Chicago O'Hare Intl

Sun 3/22

8:20 pm-6:50 pm

2 stops17h 30m

$640

LondonChicago

LHR - ORD

LHRORD

London Heathrow

Mon 4/13

7:25 am-2:00 pm

1 stop12h 35m

Chicago O'Hare Intl

Thu 4/23

10:49 am-9:40 am

1 stop16h 51m

$679

LondonChicago

LHR - ORD

LHRORD

London Heathrow

Mon 4/13

8:00 am-10:55 am

Nonstop8h 55m

Chicago O'Hare Intl

Mon 4/20

9:30 pm-11:45 am

Nonstop8h 15m

$714

LondonChicago

LHR - ORD

LHRORD

London Heathrow

Sun 4/12

8:00 am-10:55 am

Nonstop8h 55m

Chicago O'Hare Intl

Thu 4/30

4:25 pm-6:45 am

Nonstop8h 20m

$752

LondonChicago

LHR - ORD

LHRORD

London Heathrow

Sun 4/12

8:00 am-10:55 am

Nonstop8h 55m

Chicago O'Hare Intl

Thu 4/23

4:25 pm-6:45 am

Nonstop8h 20m

$754

LondonChicago

LHR - ORD

LHRORD

London Heathrow

Thu 5/7

6:30 am-4:29 pm

2 stops15h 59m

Chicago O'Hare Intl

Sun 5/17

6:31 pm-2:35 pm

1 stop14h 04m

$765

LondonChicago

LHR - ORD

LHRORD

London Heathrow

Thu 4/16

12:15 pm-2:55 pm

Nonstop8h 40m

Chicago O'Hare Intl

Tue 6/16

4:29 pm-9:10 am

1 stop10h 41m

$820

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/28

Showing 1-10 of 22 resultsSorted by cheapest first
1
2
3

Compare providers for flights from Heathrow to O'Hare Intl

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 O'Hare Intl in March.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
CheapflightsfaresPrice Accuracy2 starsTrust Score*2 stars
Thrive TravelPrice Accuracy3 starsTrust Score*2 stars
AranGrantPrice Accuracy2 starsTrust Score*2 stars
oojoPrice Accuracy3 starsTrust Score*3 stars
Justfly.comPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
GurufarePrice Accuracy3 starsTrust Score*3 stars
PricelinePrice Accuracy1 starTrust Score*3 stars

*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 O'Hare Intl Airport 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 O'Hare Intl Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from London Heathrow Airport-Chicago O'Hare Intl Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on London Heathrow Airport-Chicago O'Hare Intl Airport 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 O'Hare Intl Airport 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 O'Hare Intl

Have a flexible travel schedule? Discover the best time to fly to O'Hare Intl 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.

Cheapflights Insights

Everything you need to know about your flight from London Heathrow Airport to Chicago O'Hare Intl Airport

How far ahead should I book a flight from London Heathrow Airport to Chicago O'Hare Intl Airport?

Use this chart to determine the optimal time to book a round-trip flight from Heathrow to O'Hare Intl. Price data was last updated on February 27, 2026.

The best time to book flights from London Heathrow Airport to Chicago O'Hare Intl Airport is 58 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 Heathrow Airport to Chicago O'Hare Intl Airport?

Currently, February is the cheapest month in which you can book a flight from London Heathrow Airport to Chicago O'Hare Intl Airport (average of $477). Flying from London Heathrow Airport to Chicago O'Hare Intl Airport in July is currently the most expensive (average of $673). 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 ORD?

Find hourly flight availability from Heathrow to O'Hare Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated March 2, 2026.

When flying from London Heathrow Airport to Chicago O'Hare Intl Airport, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

The best insider tips for London Heathrow Airport to Chicago O'Hare Intl Airport flights

AI-powered summary based on content written by travel experts. AI can make mistakes.
Cheapflights partnered with top experts to bring you the best recommendations for your London Heathrow Airport to Chicago O'Hare Intl Airport trip
Our travel experts
Gabriel Leigh

Gabriel Leigh

Expert on British Airways

Gabriel is a writer and video creator. As senior content producer for Flightradar24 and Monocle’s transport correspondent, he keeps a close eye on aviation in particular. He has also written travel articles for the likes of The New York Times. Born in New York but raised around the world, he now lives in Sweden. He’s been to 75 countries, flying 2.3 million miles on 113 airlines and through 234 airports in the process.

Read more
Harriet Baskas

Harriet Baskas

Expert on United Airlines

Harriet is an award-winning journalist who is happiest in an airport or an unusual museum. Her stories about airports, air travel, and the business of travel have appeared on NBC News, CNBC, USA TODAY, The Points Guy and other outlets. She is the creator of the StuckatTheAirport.com blog and the author of nine books. When not out on the road or exploring the latest airport amenities, she’s home in Seattle getting ready for the next adventure.

Read more
Emily Zemler

Emily Zemler

Expert on Iberia

Emily is a freelance writer and book author based in London covering entertainment and travel. Her work has appeared in Los Angeles Times, Observer, and Conde Nast Traveler She has ventured to more than 40 countries and all seven continents, always in search of a great art museum. She has written extensively about hotels, luxury travel, and aviation.

Read more
Ramsey Qubein

Ramsey Qubein

Expert on ORD and LHR

An avid traveler and aviation expert who has visited 173 countries, all 50 states and seven continents, Ramsey Qubein flies nearly 400,000 miles a year. As a North Carolina-based freelance journalist for publications including Conde Nast Traveler, Forbes, USA Today and Bloomberg among others, he explores the latest trends in aviation, hospitality, cruises and business.

Read more

Reviews of airlines servicing O'Hare Intl

Get insights into the airlines that provide service to O'Hare Intl. 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 O'Hare Intl. Reviews last updated March 2, 2026.
Read through reviews of airlines operating flights from London Heathrow Airport to Chicago O'Hare Intl Airport, such as United Airlines, Aer Lingus, and American Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,375 reviews

Crew

8.1

Comfort

7.3

Overall

7.4

Boarding

7.7

Entertainment

7.1

Food

6.6

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
9,375 reviews
United Airlines
7.4
Good
9,375 reviews

Crew

8.1

Comfort

7.3

Overall

7.4

Boarding

7.7

Entertainment

7.1

Food

6.6

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
1,464 reviews
United Airlines
7.4
Good
9,375 reviews

Crew

8.1

Comfort

7.3

Overall

7.4

Boarding

7.7

Entertainment

7.1

Food

6.6

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
7.1
Good
11,371 reviews
United Airlines
7.4
Good
9,375 reviews

Crew

8.1

Comfort

7.3

Overall

7.4

Boarding

7.7

Entertainment

7.1

Food

6.6

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.
Lufthansa
6.8
Okay
7,818 reviews
United Airlines
7.4
Good
9,375 reviews

Crew

8.1

Comfort

7.3

Overall

7.4

Boarding

7.7

Entertainment

7.1

Food

6.6

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
7,775 reviews
United Airlines
7.4
Good
9,375 reviews

Crew

8.1

Comfort

7.3

Overall

7.4

Boarding

7.7

Entertainment

7.1

Food

6.6

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 Heathrow to O'Hare Intl. 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 London Heathrow Airport to Chicago O'Hare Intl Airport?

    Airlines like Scandinavian Airlines, Icelandair, and United Airlines fly from London Heathrow Airport to Chicago O'Hare Intl Airport in about 12h 35m. The time it takes to get you to your destination can typically vary by up to 14h 15m. The distance between London Heathrow Airport and Chicago O'Hare Intl Airport is about 3939 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines flying from London Heathrow Airport to Chicago O'Hare Intl Airport round-trip?

    According to our current data, Aer Lingus ($446), United Airlines ($485), and Icelandair ($494) offers the cheapest pricing from London Heathrow Airport to Chicago O'Hare Intl Airport. These flights start at 39% lower than the current average price 3 months from now.

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

    To fly one-way, consider booking your trip with TAP AIR PORTUGAL, which is currently one of the cheapest options available, starting at $393. Aer Lingus flights start at $491 while deals on United Airlines start at $500 one-way.

  • What are the most reliable airlines from London Heathrow Airport to Chicago O'Hare Intl Airport?

    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 O'Hare Intl Airport on time: Air Canada (95%), Brussels Airlines (95%), Lufthansa (95%).

  • What are the cheapest flights from London Heathrow Airport to Chicago O'Hare Intl Airport?

    The cheapest flight price from London Heathrow Airport to Chicago O'Hare Intl Airport is $500. On average you can expect to pay $1,550. The most popular route, (London Heathrow - Chicago O'Hare Intl), can usually be booked for $525.

  • Can I find deals for flights from Heathrow to O'Hare Intl that include hotel bookings?

    Yes. In addition to deals on Heathrow to O'Hare Intl flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Heathrow to O'Hare Intl?

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

  • Can I find deals for business class flights from Heathrow to O'Hare Intl?

    Yes. Cheapflights offers flight deals from Heathrow to O'Hare Intl 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 O'Hare Intl Airport?

    Currently, February is the cheapest month in which you can book a flight from London Heathrow Airport to Chicago O'Hare Intl Airport (average of $477). Flying from London Heathrow Airport to Chicago O'Hare Intl Airport in July is currently the most expensive (average of $673). 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 O'Hare Intl Airport?

Book flights to Chicago O'Hare Intl Airport if you plan to visit one of these locations
Schaumburg
Rosemont
Gurnee
Naperville
Hoffman Estates
Beloit
Delavan
Des Plaines
Elgin
Downers Grove
Elk Grove Village
Skokie
Oak Brook
South Holland
Libertyville
Oakbrook Terrace
Lake Geneva
Waukegan
Bridgeview
Kenosha

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Alternative routes for Heathrow to O'Hare Intl

See prices for flight routes from nearby airports that may be better suited for you.
Gatwick to O'Hare Intl flights
Heathrow to Midway flights
Stansted to O'Hare Intl flights

Top 10 airlines flying from Heathrow to O'Hare Intl

Discover the top 10 airlines that operate flights from Heathrow to O'Hare Intl. 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 March 2, 2026.
AirlineCheapestAverageFlexibilityOn-time
Aer LingusCheapest$446Average$672FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$485Average$705FlexibilityNo cancel feeOn-time69%
IcelandairCheapest$494Average$588FlexibilityNo cancel feeOn-time76%
Austrian AirlinesCheapest$530Average$850FlexibilityNo cancel feeOn-time78%
British AirwaysCheapest$551Average$772FlexibilityNo cancel feeOn-time70%
TAP AIR PORTUGALCheapest$558Average$789FlexibilityNo cancel feeOn-timeN/A
FinnairCheapest$576Average$750FlexibilityNo cancel feeOn-time76%
American AirlinesCheapest$579Average$800FlexibilityNo cancel feeOn-time71%
IberiaCheapest$599Average$778FlexibilityNo cancel feeOn-time77%
LufthansaCheapest$618Average$809FlexibilityNo cancel feeOn-time76%

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