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$373+ Cheap flights from O'Hare Intl (ORD) to Heathrow (LHR)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/8. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — LHR
Jan 3 — Jan 101
Sat 1/3
Sat 1/10
1 adult, Economy
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Cheapflights Tip: The best prices from Chicago O'Hare Intl to London Heathrow are usually found in April or February, booked 55 days in advance, depart on a Tuesday or Wednesday and return on a Wednesday

Cheap flight deals from O'Hare Intl to Heathrow

Cheapest flights from O'Hare Intl to Heathrow
Explore the most affordable flight options available from O'Hare Intl to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 4, 2025.

This FlightHub deal was found by Cheapflights users on 12/3. 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.
Wed 12/37:10 pmORD - LHR
1 stop14h 20mTAP AIR PORTUGAL
Sun 12/76:00 amLHR - ORD
1 stop14h 45mTAP AIR PORTUGAL
Deal found 12/3$565
This United Airlines deal was found by Cheapflights users on 12/3. 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.
Wed 12/313:45 pmORD - LHR
Nonstop8h 10mUnited Airlines
Tue 1/1311:10 amLHR - ORD
1 stop13h 15mUnited Airlines
Deal found 12/3$570
This KAYAK deal was found by Cheapflights users on 12/3. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/106:30 pmORD - LHR
1 stop10h 20mIcelandair
Wed 1/2812:15 pmLHR - ORD
1 stop11h 05mIcelandair
Deal found 12/3$572
This Cheapflightsfares deal was found by Cheapflights users on 12/3. 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.
Sun 12/76:30 pmORD - LHR
1 stop10h 20mIcelandair
Fri 1/3012:15 pmLHR - ORD
1 stop11h 05mIcelandair
Deal found 12/3$574
This oojo deal was found by Cheapflights users on 12/3. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/156:30 pmORD - LHR
1 stop19h 00mIcelandair
Mon 1/128:35 pmLHR - ORD
1 stop26h 45mIcelandair
Deal found 12/3$575
This Kiwi.com deal was found by Cheapflights users on 12/3. 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.
Wed 12/311:24 pmORD - LHR
1 stop11h 16mMultiple Airlines
Mon 1/126:00 amLHR - ORD
1 stop12h 45mMultiple Airlines
Deal found 12/3$579
This Delta deal was found by Cheapflights users on 12/3. 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.
Wed 12/3112:30 pmORD - LHR
1 stop12h 35mDelta
Thu 1/226:20 amLHR - ORD
1 stop14h 50mDelta
Deal found 12/3$580
This Delta deal was found by Cheapflights users on 12/3. 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.
Wed 12/311:35 pmORD - LHR
1 stop13h 10mDelta
Wed 1/286:30 amLHR - ORD
1 stop13h 50mDelta
Deal found 12/3$581
This British Airways deal was found by Cheapflights users on 12/3. 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 12/315:10 pmORD - LHR
Nonstop7h 45mBritish Airways
Fri 1/2311:00 amLHR - ORD
Nonstop8h 50mBritish Airways
Deal found 12/3$582
This United Airlines deal was found by Cheapflights users on 12/3. 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.
Wed 12/315:50 pmORD - LHR
Nonstop8h 05mUnited Airlines
Thu 1/2211:10 amLHR - ORD
1 stop13h 15mUnited Airlines
Deal found 12/3$583
This Kiwi.com deal was found by Cheapflights users on 12/3. 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.
Wed 12/311:24 pmORD - LHR
1 stop11h 16mAustrian Airlines
Sun 1/1112:05 pmLHR - ORD
1 stop12h 32mAustrian Airlines
Deal found 12/3$584

Find flight deals from O'Hare Intl to Heathrow

Discover tips and strategies to find the most affordable flight options for your journey from O'Hare Intl (ORD) to Heathrow (LHR). 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 December 4, 2025.

Most accurate provider

Justfly.com
3 stars

Most trusted provider

Justfly.com
3 stars

Round-trip from

$555
(SmartFares)

One-way from

$373
(Mytrip)

Popular in

June

Cheapest in

April

Average price

$937

Good round-trip deal

$689 or less

Good one-way deal

$448 or less
Provider with most accurate pricing for Chicago O'Hare Intl-London Heathrow flight deals.
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Provider most trusted by Cheapflights users for Chicago O'Hare Intl-London Heathrow flights.
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From Chicago O'Hare Intl to London Heathrow
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One-way flight from Chicago O'Hare Intl to London Heathrow
Search Deals
Highest demand for flights based on searches. 20% potential increase in price ($201 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($42 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals
Price to beat on a round-trip flight from Chicago O'Hare Intl to London Heathrow.
Search Deals
Price to beat on a one-way flight from Chicago O'Hare Intl to London Heathrow.
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Cheapflights Fare Finder

 
Customize your flight search to find flights from O'Hare Intl to Heathrow 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 December 4, 2025.
Use the filters below to find and compare flights from Chicago O'Hare Intl Airport to London Heathrow Airport that are best for you.

Fly from

O'Hare Intl

Fly to

Heathrow

Route

Depart

Return

Price

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Wed 3/18

8:20 pm-6:50 pm

2 stops17h 30m

London Heathrow

Sun 3/22

10:35 am-5:45 pm

2 stops36h 10m

$557

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Sun 1/11

9:05 pm-11:15 am

Nonstop8h 10m

London Heathrow

Wed 2/11

1:45 pm-4:20 pm

1 stop32h 35m

$573

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Wed 2/25

5:50 pm-7:55 am

Nonstop8h 05m

London Heathrow

Mon 3/2

4:40 pm-2:10 pm

1 stop27h 30m

$588

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Sat 3/7

7:20 pm-5:40 pm

1 stop16h 20m

London Heathrow

Sat 3/14

3:35 pm-5:45 pm

2 stops31h 10m

$590

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Sun 1/18

5:50 pm-7:55 am

Nonstop8h 05m

London Heathrow

Wed 1/28

7:40 am-11:00 am

Nonstop9h 20m

$590

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Wed 4/22

7:15 pm-4:00 pm

1 stop14h 45m

London Heathrow

Tue 5/5

7:50 pm-4:10 pm

2 stops26h 20m

$599

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Tue 4/21

7:30 am-9:35 am

2 stops20h 05m

London Heathrow

Sat 5/2

6:40 am-4:10 pm

2 stops15h 30m

$606

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Fri 4/24

7:15 pm-1:35 pm

1 stop12h 20m

London Heathrow

Fri 5/8

7:05 am-4:10 pm

2 stops15h 05m

$609

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Fri 4/24

7:15 pm-1:35 pm

1 stop12h 20m

London Heathrow

Sat 5/9

6:40 am-4:10 pm

2 stops15h 30m

$612

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Mon 1/19

9:05 pm-11:15 am

Nonstop8h 10m

London Heathrow

Mon 1/26

1:45 pm-4:20 pm

1 stop32h 35m

$619

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/3

Showing 1-10 of 21 results
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Compare providers for flights from O'Hare Intl to Heathrow

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 O'Hare Intl to Heathrow in December.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*3 stars
Trip.comPrice Accuracy2 starsTrust Score*3 stars
Kiwi.comPrice Accuracy3 starsTrust Score*3 stars
CheapflightsfaresPrice Accuracy3 starsTrust Score*2 stars
OvagoPrice Accuracy2 starsTrust Score*2 stars
Justfly.comPrice Accuracy3 starsTrust Score*3 stars
oojoPrice Accuracy3 starsTrust 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 Chicago O'Hare Intl Airport-London Heathrow Airport flights, users find the pricing of Justfly.com to be most consistent on Cheapflights vs. Justfly.com Users can find the same prices on Chicago O'Hare Intl Airport-London Heathrow Airport flight deals on Cheapflights vs. Justfly.com >95% of the time. Price accuracy is based on data collected from Chicago O'Hare Intl Airport-London Heathrow Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Chicago O'Hare Intl Airport-London Heathrow Airport flights, Cheapflights users trust Justfly.com the most. Justfly.com 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 Chicago O'Hare Intl Airport-London Heathrow 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 O'Hare Intl to Heathrow

Have a flexible travel schedule? Discover the best time to fly to Heathrow from O'Hare Intl 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 Chicago O'Hare Intl Airport to London Heathrow Airport

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

Use this chart to determine the optimal time to book a round-trip flight from O'Hare Intl to Heathrow. Price data was last updated on November 28, 2025.

The price you pay for your flight from Chicago O'Hare Intl Airport to London Heathrow Airport may vary depending on when you book. For the best chance of a lower fare, look to book 55 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 Chicago O'Hare Intl Airport to London Heathrow Airport?

Currently, May is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to London Heathrow Airport (average of $399). Flying from Chicago O'Hare Intl Airport to London Heathrow Airport in June is currently the most expensive (average of $906). 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 ORD to LHR?

Find hourly flight availability from O'Hare Intl to Heathrow. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 4, 2025.

A simple way to save on the total cost of your ticket is to fly from Chicago O'Hare Intl Airport to London Heathrow Airport at noon. If you’re flexible enough to do this you can expect to save up to 61% on your trip compared to booking a flight in the morning.

What is the cheapest day to fly from Chicago O'Hare Intl Airport to London Heathrow Airport?

Use this chart to determine the cheapest time to fly round-trip from O'Hare Intl to Heathrow. Price data was last updated on October 26, 2025.

Travelers seeking maximum savings on their Chicago O'Hare Intl Airport to London Heathrow Airport flight should consider departing on Sunday mornings when fares are most often at their lowest. Monday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

How much does it cost to fly round-trip from Chicago O'Hare Intl Airport to London Heathrow Airport?

The best insider tips for Chicago O'Hare Intl Airport to London Heathrow 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 Chicago O'Hare Intl Airport to London Heathrow Airport trip
Airlines
British Airways

BA's Club Suite offers private pods with doors, ideal for long-haul comfort.


BA's World Traveller Plus offers extra legroom and upgraded service, ideal for long-haul flights.

Read more about British Airwaysby Gabriel Leigh
Iberia

Iberia's premium economy offers 37-inch legroom and priority boarding, enhancing long-haul comfort.


Iberia's Wi-Fi is free for messaging apps in Business class and for Iberia Plus members.

Read more about Iberiaby Emily Zemler
Airports
ORD

For a quick snack before departure, grab some Garrett Popcorn, a Chicago favorite, near gate B8 in Terminal 1.

Read more about ORDby Ramsey Qubein
LHR

Take the Heathrow Express for the fastest route to central London, arriving at Paddington Station for easy connections.

Read more about LHRby Ramsey Qubein
Our travel experts
Gabriel Leigh

Gabriel Leigh

Expert on British Airways

Gabriel Leigh

Gabriel Leigh

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
Emily Zemler

Emily Zemler

Expert on Iberia

Emily Zemler

Emily Zemler

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

Ramsey Qubein

Ramsey Qubein

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 Heathrow

Get insights into the airlines that provide service to Heathrow. 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 Heathrow. Reviews last updated December 4, 2025.
Read reviews from past customers who have flown Finnair, United Airlines, and American Airlines from Chicago O'Hare Intl Airport to London Heathrow Airport. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Finnair
7.6
Good
1,334 reviews

Entertainment

6.9

Food

6.7

Boarding

7.6

Comfort

7.4

Crew

8.1

Overall

7.6

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

FRA - DFW

I was lucky I had a seet without no one next to me My vegetarian meal was excellent. The service very good. Although there was a lot of turbulences during the flight, the landing was very soft and took away all our apprehension.
Finnair
7.6
Good
1,334 reviews
Finnair
7.6
Good
1,334 reviews

Entertainment

6.9

Food

6.7

Boarding

7.6

Comfort

7.4

Crew

8.1

Overall

7.6

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

FRA - DFW

I was lucky I had a seet without no one next to me My vegetarian meal was excellent. The service very good. Although there was a lot of turbulences during the flight, the landing was very soft and took away all our apprehension.
United Airlines
7.4
Good
9,066 reviews
Finnair
7.6
Good
1,334 reviews

Entertainment

6.9

Food

6.7

Boarding

7.6

Comfort

7.4

Crew

8.1

Overall

7.6

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

FRA - DFW

I was lucky I had a seet without no one next to me My vegetarian meal was excellent. The service very good. Although there was a lot of turbulences during the flight, the landing was very soft and took away all our apprehension.
American Airlines
7.2
Good
11,044 reviews
Finnair
7.6
Good
1,334 reviews

Entertainment

6.9

Food

6.7

Boarding

7.6

Comfort

7.4

Crew

8.1

Overall

7.6

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

FRA - DFW

I was lucky I had a seet without no one next to me My vegetarian meal was excellent. The service very good. Although there was a lot of turbulences during the flight, the landing was very soft and took away all our apprehension.
Iberia
7.0
Good
3,040 reviews
Finnair
7.6
Good
1,334 reviews

Entertainment

6.9

Food

6.7

Boarding

7.6

Comfort

7.4

Crew

8.1

Overall

7.6

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

FRA - DFW

I was lucky I had a seet without no one next to me My vegetarian meal was excellent. The service very good. Although there was a lot of turbulences during the flight, the landing was very soft and took away all our apprehension.
British Airways
6.7
Okay
7,562 reviews
Finnair
7.6
Good
1,334 reviews

Entertainment

6.9

Food

6.7

Boarding

7.6

Comfort

7.4

Crew

8.1

Overall

7.6

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

FRA - DFW

I was lucky I had a seet without no one next to me My vegetarian meal was excellent. The service very good. Although there was a lot of turbulences during the flight, the landing was very soft and took away all our apprehension.

Related info for your journey

Find useful and relevant information for your journey from O'Hare Intl to Heathrow. 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 Chicago O'Hare Intl Airport to London Heathrow Airport?

    There are many flights that can get you from Chicago O'Hare Intl Airport to London Heathrow Airport in 8h 10m. Fly via Scandinavian Airlines or United Airlines to get the fastest option. Airlines will cover a distance of 3939 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

    JetBlue, at $51, was found to be the cheapest airline from Chicago O'Hare Intl Airport to London Heathrow Airport.Alternate airlines to your destination round-trip include SWISS and Scandinavian Airlines. Users have found that JetBlue is 93% cheaper than the other options available to this destination.

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

    To fly one-way, consider booking your trip with JetBlue, which is currently one of the cheapest options available, starting at $135. Scandinavian Airlines flights start at $149 while deals on Icelandair start at $218 one-way.

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

    No one likes to see their flight delayed. When booking a flight from Chicago O'Hare Intl Airport to London Heathrow Airport consider choosing Air Canada (64%), Austrian Airlines (64%) or United Airlines (64%) as they are the most reliable in getting you off to your destination on time.

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

    The cheapest flight price from Chicago O'Hare Intl Airport to London Heathrow Airport is $380. On average you can expect to pay $2,570. The most popular route, (Chicago O'Hare Intl - London Heathrow), can usually be booked for $425.

  • Where are the most common layover locations when flying from Chicago O'Hare Intl Airport to London Heathrow Airport?

    Chicago O'Hare Intl Airport to London Heathrow Airport flights have a layover in Reykjavik most of the time.

  • What are some popular things to do or see while on a layover in Reykjavik?

    Hallgrímskirkja, Harpa, and Laugardalslaug Geothermal Pool are the most popular attractions in Reykjavik if you're in need of something to do during your layover. Hallgrímskirkja, Harpa, and Laugardalslaug Geothermal Pool can be accessed by traveling approximately 23.2 mi, 23.3 mi, and 24.6 mi, respectively from Reykjavik Keflavik Intl. Travelers in need of a car in Reykjavik can rent one for about $48 per day.

  • Where are the least popular layover locations for Chicago O'Hare Intl Airport to London Heathrow Airport flights?

    Flights departing from Chicago O'Hare Intl Airport and landing in London Heathrow Airport layover in Dublin least frequently.

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

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

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

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

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

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

    Currently, May is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to London Heathrow Airport (average of $399). Flying from Chicago O'Hare Intl Airport to London Heathrow Airport in June is currently the most expensive (average of $906). 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
Ilford
Hounslow
Hayes
Southend-on-Sea
Harrow
Eastleigh
Dartford
Dover
Winchester
Croydon
Orpington
Northampton
Watford
Borehamwood
Broadway
Aylesbury
Chipping Norton
Kingston upon Thames
Wembley
Folkestone

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Top 10 airlines flying from O'Hare Intl to Heathrow

Discover the top 10 airlines that operate flights from O'Hare Intl to Heathrow. 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 December 4, 2025.
AirlineCheapestAverageFlexibilityOn-time
JetBlueCheapest$51Average$625FlexibilityNo cancel feeOn-time62%
SWISSCheapest$257Average$573FlexibilityNo cancel feeOn-time79%
Scandinavian AirlinesCheapest$338Average$567FlexibilityNo cancel feeOn-time77%
DeltaCheapest$345Average$760FlexibilityNo cancel feeOn-timeN/A
TAP AIR PORTUGALCheapest$450Average$639FlexibilityNo cancel feeOn-timeN/A
LufthansaCheapest$460Average$960FlexibilityNo cancel feeOn-time76%
IcelandairCheapest$480Average$609FlexibilityNo cancel feeOn-time76%
Aer LingusCheapest$505Average$800FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$522Average$919FlexibilityNo cancel feeOn-time75%
FinnairCheapest$539Average$777FlexibilityNo cancel feeOn-time76%

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