HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Heathrow

$235+ 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 11/5. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — LHR
Nov 15 — Nov 221
Sat 11/15
Sat 11/22
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from O'Hare Intl to Heathrow 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.

Cheapflights Tip: The best prices from Chicago O'Hare Intl to London Heathrow are usually found in February or April, booked 55 days in advance, depart on a Tuesday or Wednesday and return on a Wednesday

Find 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 October 16, 2025.

This CrystalTravel deal was found by Cheapflights users on 10/13. 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 CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/296:30 pmORD - LHR
1 stop10h 20mIcelandair
Fri 1/912:15 pmLHR - ORD
1 stop11h 05mIcelandair
Deal found 10/13$526
This CrystalTravel deal was found by Cheapflights users on 10/16. 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 CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/316:30 pmORD - LHR
1 stop10h 20mIcelandair
Thu 1/1512:15 pmLHR - ORD
1 stop11h 05mIcelandair
Deal found 10/16$527
This FlightHub deal was found by Cheapflights users on 10/16. 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.
Sun 11/167:20 pmORD - LHR
2 stops31h 35mScandinavian Airlines
Wed 11/196:40 amLHR - ORD
1 stop16h 05mScandinavian Airlines
Deal found 10/16$529
This Scandinavian Airlines deal was found by Cheapflights users on 10/16. 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.
Fri 11/77:20 pmORD - LHR
2 stops31h 35mScandinavian Airlines
Mon 11/106:40 amLHR - ORD
1 stop16h 05mScandinavian Airlines
Deal found 10/16$535
This CrystalTravel deal was found by Cheapflights users on 10/14. 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 CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/46:30 pmORD - LHR
1 stop10h 20mIcelandair
Fri 11/1412:15 pmLHR - ORD
1 stop11h 05mIcelandair
Deal found 10/14$537
This Kiwi.com deal was found by Cheapflights users on 10/15. 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 11/96:30 pmORD - LHR
1 stop10h 20mIcelandair
Sat 11/2212:15 pmLHR - ORD
1 stop11h 05mIcelandair
Deal found 10/15$538
This Scandinavian Airlines deal was found by Cheapflights users on 10/14. 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.
Tue 11/117:10 amORD - LHR
2 stops20h 10mScandinavian Airlines
Tue 11/187:50 pmLHR - ORD
2 stops26h 55mScandinavian Airlines
Deal found 10/14$540
This Scandinavian Airlines deal was found by Cheapflights users on 10/15. 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.
Tue 11/117:10 amORD - LHR
2 stops20h 10mScandinavian Airlines
Thu 11/2010:20 amLHR - ORD
1 stop12h 25mScandinavian Airlines
Deal found 10/15$541
This CrystalTravel deal was found by Cheapflights users on 10/14. 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 CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/77:20 pmORD - LHR
2 stops15h 05mScandinavian Airlines
Sun 11/96:40 amLHR - ORD
2 stops16h 05mScandinavian Airlines
Deal found 10/14$542

Cheap 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 October 16, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$527
(oojo)

One-way from

$235
(Kiwi.com)

Popular in

June

Cheapest in

February

Average price

$695

Good round-trip deal

$661 or less

Good one-way deal

$446 or less
Provider with most accurate pricing for Chicago O'Hare Intl-London Heathrow flight deals.
Search Deals
Provider most trusted by Cheapflights users for Chicago O'Hare Intl-London Heathrow flights.
Search Deals
From Chicago O'Hare Intl to London Heathrow
Search Deals
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 ($203 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 October 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.
Search Deals

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 October 16, 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

Thu 1/29

10:40 am-4:00 pm

2 stops23h 20m

London Heathrow

Fri 2/6

6:40 am-4:45 pm

1 stop16h 05m

$530

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Thu 2/26

10:40 am-9:20 am

2 stops16h 40m

London Heathrow

Mon 3/2

6:40 am-4:45 pm

1 stop16h 05m

$531

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Fri 11/7

7:20 pm-8:55 am

2 stops31h 35m

London Heathrow

Mon 11/10

6:40 am-4:45 pm

1 stop16h 05m

$535

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Thu 2/19

7:30 am-9:20 am

2 stops19h 50m

London Heathrow

Sat 2/28

3:35 pm-4:45 pm

2 stops31h 10m

$574

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Wed 11/12

11:46 am-6:50 am

1 stop13h 04m

London Heathrow

Wed 11/19

12:35 pm-3:25 pm

Nonstop8h 50m

$588

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Tue 11/4

11:23 am-7:50 am

1 stop14h 27m

London Heathrow

Tue 11/25

6:20 am-4:24 pm

2 stops16h 04m

$592

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Mon 10/27

11:23 am-11:40 am

1 stop19h 17m

London Heathrow

Mon 11/3

5:35 pm-3:10 pm

1 stop27h 35m

$595

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Wed 12/3

5:50 pm-7:55 am

Nonstop8h 05m

London Heathrow

Tue 12/9

6:35 am-2:10 pm

1 stop13h 35m

$604

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Wed 12/3

9:05 pm-11:15 am

Nonstop8h 10m

London Heathrow

Wed 12/10

6:35 am-2:10 pm

1 stop13h 35m

$604

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Sun 11/9

9:05 pm-11:15 am

Nonstop8h 10m

London Heathrow

Mon 11/17

4:40 pm-2:10 pm

1 stop27h 30m

$614

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/16

Showing 1-10 of 21 results
1
2
3

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 October.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*3 stars
Kiwi.comPrice Accuracy3 starsTrust Score*3 stars
CheapflightsfaresPrice Accuracy2 starsTrust Score*1 star
Trip.comPrice Accuracy2 starsTrust Score*3 stars
OvagoPrice Accuracy2 starsTrust Score*2 stars
Justfly.comPrice Accuracy3 starsTrust Score*3 stars
GotogatePrice Accuracy2 starsTrust Score*2 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 FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Chicago O'Hare Intl Airport-London Heathrow Airport flight deals on Cheapflights vs. FlightHub >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 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 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 October 10, 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 $391). Flying from Chicago O'Hare Intl Airport to London Heathrow Airport in June is currently the most expensive (average of $900). 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 October 16, 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 in the morning. If you’re flexible enough to do this you can expect to save up to 20% on your trip compared to booking a flight in the afternoon.

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 12, 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. Saturday afternoons 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

Snippets provided in this section are AI-generated based on a summarization of Cheapflights-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
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 October 16, 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
1,332 reviews

Boarding

7.6

Entertainment

6.9

Crew

8.1

Food

6.7

Comfort

7.4

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
1,332 reviews
Finnair
7.6
Good
1,332 reviews

Boarding

7.6

Entertainment

6.9

Crew

8.1

Food

6.7

Comfort

7.4

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
8,982 reviews
Finnair
7.6
Good
1,332 reviews

Boarding

7.6

Entertainment

6.9

Crew

8.1

Food

6.7

Comfort

7.4

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
11,040 reviews
Finnair
7.6
Good
1,332 reviews

Boarding

7.6

Entertainment

6.9

Crew

8.1

Food

6.7

Comfort

7.4

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
2,994 reviews
Finnair
7.6
Good
1,332 reviews

Boarding

7.6

Entertainment

6.9

Crew

8.1

Food

6.7

Comfort

7.4

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
7,457 reviews
Finnair
7.6
Good
1,332 reviews

Boarding

7.6

Entertainment

6.9

Crew

8.1

Food

6.7

Comfort

7.4

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 13h 04m. Fly via Scandinavian Airlines or Finnair 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 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 Royal Jordanian (80%), SriLankan Airlines (74%) or Gulf Air (74%) 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 $388. On average you can expect to pay $2,612. The most popular route, (Chicago O'Hare Intl - London Heathrow), can usually be booked for $439.

  • 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?

    Harpa, Hallgrímskirkja, and Laugardalslaug Geothermal Pool are the most popular attractions in Reykjavik if you're in need of something to do during your layover. Harpa, Hallgrímskirkja, and Laugardalslaug Geothermal Pool can be accessed by traveling approximately 23.3 mi, 23.2 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 $391). Flying from Chicago O'Hare Intl Airport to London Heathrow Airport in June is currently the most expensive (average of $900). 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
Hounslow
Hayes
Ilford
Southend-on-Sea
Harrow
Canterbury
Croydon
Eastleigh
Dartford
Dover
Winchester
Orpington
Northampton
Gatwick
Borehamwood
Broadway
Aylesbury
Bedford
Chipping Norton
Wembley

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.

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 October 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
JetBlueCheapest$51Average$632FlexibilityNo cancel feeOn-time62%
SWISSCheapest$257Average$626FlexibilityNo cancel feeOn-time79%
Scandinavian AirlinesCheapest$338Average$575FlexibilityNo cancel feeOn-time77%
DeltaCheapest$345Average$849FlexibilityNo cancel feeOn-timeN/A
LufthansaCheapest$430Average$947FlexibilityNo cancel feeOn-time76%
TAP AIR PORTUGALCheapest$450Average$660FlexibilityNo cancel feeOn-timeN/A
IcelandairCheapest$479Average$606FlexibilityNo cancel feeOn-time76%
Aer LingusCheapest$503Average$826FlexibilityNo cancel feeOn-timeN/A
FinnairCheapest$544Average$776FlexibilityNo cancel feeOn-time76%
British AirwaysCheapest$562Average$765FlexibilityNo cancel feeOn-time70%

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.