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$233+ Cheap flights from O'Hare Intl (ORD) to London (LON)

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 11/17. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — LON
Nov 27 — Dec 41
Thu 11/27
Thu 12/4
1 adult, Economy
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Cheapflights Tip: The best prices from Chicago O'Hare Intl to London are usually found in April or February, booked 41 days in advance, depart on a Tuesday or Wednesday and return on a Wednesday

Cheap flight deals from O'Hare Intl to London

Discover tips and strategies to find the most affordable flight options for your journey from O'Hare Intl (ORD) to London (LON). 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 28, 2025.

Most accurate provider

Justfly.com
3 stars

Most trusted provider

Justfly.com
3 stars

Round-trip from

$534
(Mytrip)

One-way from

$233
(Kiwi.com)

Popular in

June

Cheapest in

April

Average price

$663

Good round-trip deal

$705 or less

Good one-way deal

$436 or less
Provider with most accurate pricing for Chicago O'Hare Intl-London (LON) flight deals.
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Provider most trusted by Cheapflights users for Chicago O'Hare Intl-London (LON) flights.
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From Chicago O'Hare Intl to London (LON)
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One-way flight from Chicago O'Hare Intl to London (LON)
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Highest demand for flights based on searches. 21% potential increase in price ($210 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($36 potential savings vs. average RT price).
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Average for round-trip flights in October 2025
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Price to beat on a round-trip flight from Chicago O'Hare Intl to London (LON).
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Price to beat on a one-way flight from Chicago O'Hare Intl to London (LON).
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Find flight deals from O'Hare Intl to London

Cheapest flights from O'Hare Intl to London
Explore the most affordable flight options available from O'Hare Intl to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 28, 2025.

This Mytrip deal was found by Cheapflights users on 10/25. 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.
Fri 12/56:30 pmORD - LGW
2 stops19h 45mMultiple Airlines
Sat 12/139:05 pmLGW - ORD
2 stops26h 15mMultiple Airlines
Deal found 10/25$534
This Mytrip deal was found by Cheapflights users on 10/27. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/106:30 pmORD - LHR
2 stops20h 35mMultiple Airlines
Mon 12/157:50 amLHR - ORD
2 stops15h 30mMultiple Airlines
Deal found 10/27$535
This Scandinavian Airlines deal was found by Cheapflights users on 10/27. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/67:20 pmORD - LHR
2 stops18h 35mScandinavian Airlines
Mon 12/86:40 amLHR - ORD
2 stops21h 07mScandinavian Airlines
Deal found 10/27$536
This Kiwi.com deal was found by Cheapflights users on 10/27. 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.
Sun 11/236:30 pmORD - LGW
1 stop10h 25mIcelandair
Wed 12/311:55 amLGW - ORD
1 stop11h 25mIcelandair
Deal found 10/27$536
This Gotogate deal was found by Cheapflights users on 10/26. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/106:30 pmORD - LHR
1 stop19h 00mIcelandair
Wed 12/178:35 pmLHR - ORD
1 stop26h 45mIcelandair
Deal found 10/26$537
This Kiwi.com deal was found by Cheapflights users on 10/27. 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 12/56:30 pmORD - LGW
1 stop10h 25mIcelandair
Sun 12/711:55 amLGW - ORD
1 stop11h 25mIcelandair
Deal found 10/27$537
This Bravofly deal was found by Cheapflights users on 10/27. 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 Bravofly is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/1910:35 amORD - LHR
1 stop13h 45mVirgin Atlantic
Tue 11/258:55 amLHR - ORD
1 stop12h 15mVirgin Atlantic
Deal found 10/27$538
This Mytrip deal was found by Cheapflights users on 10/27. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/267:20 pmORD - STN
2 stops21h 20mMultiple Airlines
Wed 12/36:25 pmSTN - ORD
2 stops28h 20mMultiple Airlines
Deal found 10/27$538
This FlightHub deal was found by Cheapflights users on 10/28. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/308:25 pmORD - LHR
1 stop19h 10mTAP AIR PORTUGAL
Sun 12/76:00 amLHR - ORD
1 stop14h 45mTAP AIR PORTUGAL
Deal found 10/28$539
This FlightHub deal was found by Cheapflights users on 10/28. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/288:15 pmORD - LGW
1 stop13h 30mTAP AIR PORTUGAL
Sat 12/64:35 pmLGW - ORD
1 stop28h 10mTAP AIR PORTUGAL
Deal found 10/28$539
This Gotogate deal was found by Cheapflights users on 10/28. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/96:30 pmORD - LHR
1 stop19h 00mIcelandair
Tue 11/188:35 pmLHR - ORD
1 stop26h 45mIcelandair
Deal found 10/28$540
This Kiwi.com deal was found by Cheapflights users on 10/27. 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.
Sun 11/93:50 pmORD - LTN
1 stop11h 05mMultiple Airlines
Tue 11/189:00 amLTN - ORD
1 stop14h 55mMultiple Airlines
Deal found 10/27$540

Cheapflights Fare Finder

 
Customize your flight search to find flights from O'Hare Intl to London 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 28, 2025.
Use the filters below to find and compare flights from Chicago O'Hare Intl Airport to London that are best for you.

Fly from

O'Hare Intl

Fly to

London

Route

Depart

Return

Price

ChicagoLondon

ORD - LGW

ORDLGW

Chicago O'Hare Intl

Fri 1/30

6:30 pm-10:55 am

1 stop10h 25m

London Gatwick

Mon 3/2

11:55 am-5:20 pm

1 stop11h 25m

$540

ChicagoLondon

ORD - LGW

ORDLGW

Chicago O'Hare Intl

Sat 1/31

6:30 pm-10:55 am

1 stop10h 25m

London Gatwick

Sun 3/1

11:55 am-5:20 pm

1 stop11h 25m

$540

ChicagoLondon

ORD - LTN

ORDLTN

Chicago O'Hare Intl

Wed 12/10

3:50 pm-8:35 am

1 stop10h 45m

London Luton

Wed 12/17

6:50 am-2:00 pm

1 stop13h 10m

$547

ChicagoLondon

ORD - STN

ORDSTN

Chicago O'Hare Intl

Sun 11/9

9:50 pm-11:00 pm

2 stops19h 10m

London Stansted

Tue 11/18

9:45 pm-1:10 pm

2 stops21h 25m

$547

ChicagoLondon

ORD - LTN

ORDLTN

Chicago O'Hare Intl

Mon 11/17

3:50 pm-8:35 am

1 stop10h 45m

London Luton

Sun 11/23

8:05 am-2:00 pm

1 stop11h 55m

$549

ChicagoLondon

ORD - STN

ORDSTN

Chicago O'Hare Intl

Mon 11/17

7:40 pm-2:20 pm

1 stop12h 40m

London Stansted

Sun 11/23

8:30 am-2:00 pm

1 stop11h 30m

$549

ChicagoLondon

ORD - LTN

ORDLTN

Chicago O'Hare Intl

Wed 11/26

7:20 pm-10:20 pm

2 stops21h 00m

London Luton

Wed 12/3

8:50 pm-4:45 pm

2 stops25h 55m

$555

ChicagoLondon

ORD - STN

ORDSTN

Chicago O'Hare Intl

Tue 11/18

3:55 pm-9:50 am

2 stops11h 55m

London Stansted

Thu 11/27

6:30 am-7:30 pm

3 stops19h 00m

$556

ChicagoLondon

ORD - STN

ORDSTN

Chicago O'Hare Intl

Fri 1/9

6:30 pm-3:15 pm

2 stops14h 45m

London Stansted

Wed 1/14

6:00 am-5:20 pm

2 stops17h 20m

$557

ChicagoLondon

ORD - STN

ORDSTN

Chicago O'Hare Intl

Mon 1/12

6:30 pm-3:45 pm

2 stops15h 15m

London Stansted

Sat 1/17

5:20 pm-5:20 pm

2 stops30h 00m

$562

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/26

Showing 1-10 of 60 results
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Compare providers for flights from O'Hare Intl to London

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 London in October.
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
CheapflightsfaresPrice Accuracy3 starsTrust Score*2 stars
Justfly.comPrice Accuracy3 starsTrust Score*3 stars
oojoPrice Accuracy3 starsTrust Score*3 stars
ScholarTripPrice Accuracy3 starsTrust Score*3 stars
JustAirTicketPrice Accuracy-Trust 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 Chicago O'Hare Intl Airport-London 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 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 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 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 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 London

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

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

Use this chart to determine the optimal time to book a round-trip flight from O'Hare Intl to London. Price data was last updated on October 24, 2025.

The best time to book flights from Chicago O'Hare Intl Airport to London is 41 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 Chicago O'Hare Intl Airport to London?

Currently, May is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to London (average of $397). Flying from Chicago O'Hare Intl Airport to London in July is currently the most expensive (average of $611). 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 LON?

Find hourly flight availability from O'Hare Intl to London. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated October 28, 2025.

It’s typically best to fly out from Chicago O'Hare Intl Airport to London in the evening. Doing so could potentially save you 28% on the flight price compared to flying in the morning, which is usually more expensive.

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

Use this chart to determine the cheapest time to fly round-trip from O'Hare Intl to London. Price data was last updated on December 1, 2024.

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

What’s the top layover airport for flights from Chicago O'Hare Intl Airport to London?

Share of 1-stop round-trip flights from Chicago O'Hare Intl Airport to London chosen by Cheapflights users in the past 12 months, using the same layover each way.

Reykjavik (KEF) – chosen by Cheapflights users on 58% of 1-stop itineraries from Chicago O'Hare Intl Airport to London on Cheapflights.

What’s the cheapest layover airport for flights from Chicago O'Hare Intl Airport to London?

Average round-trip fare for 1-stop flights from Chicago O'Hare Intl Airport to London, chosen by Cheapflights users in the past 12 months, with the same layover each way.

Copenhagen (CPH) is the most affordable 1-stop option, with an average round-trip price of $459.

What’s the fastest layover option from Chicago O'Hare Intl Airport to London?

Shortest average travel time for 1-stop one-way flights from Chicago O'Hare Intl Airport to London, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.

Flights via Reykjavik (KEF) have the shortest average one-way travel time for 1-stop routes: 10h 21m.

Which airport typically offers the quickest layover for flights from Chicago O'Hare Intl Airport to London?

Average layover duration for 1-stop one-way flights from Chicago O'Hare Intl Airport to London, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

Flights via Reykjavik (KEF) offer the fastest connection on this route, with an average layover time of 1h 11m.

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

BA's Club Suite offers private pods with doors for enhanced privacy on long-haul flights.


BA's World Traveller Plus offers extra seat width and legroom, ideal for long-haul comfort.

Read more about British Airwaysby Gabriel Leigh
Iberia

Iberia's premium economy offers 37-inch legroom and noise-canceling headphones for long-haul flights.


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

Read more about Iberiaby Emily Zemler
Airports
ORD

For a smooth departure from ORD, use the free shuttle train to navigate between terminals efficiently.

Read more about ORDby Ramsey Qubein
LHR

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

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 London

Get insights into the airlines that provide service to London. 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 London. Reviews last updated October 28, 2025.
Peruse reviews from past customers who have flown with United Airlines, American Airlines, and Icelandair from Chicago O'Hare Intl Airport to London to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
8,999 reviews

Boarding

7.7

Comfort

7.3

Crew

8.1

Entertainment

7.1

Overall

7.4

Food

6.6

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000
United Airlines
7.4
Good
8,999 reviews
United Airlines
7.4
Good
8,999 reviews

Boarding

7.7

Comfort

7.3

Crew

8.1

Entertainment

7.1

Overall

7.4

Food

6.6

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000
American Airlines
7.2
Good
11,034 reviews
United Airlines
7.4
Good
8,999 reviews

Boarding

7.7

Comfort

7.3

Crew

8.1

Entertainment

7.1

Overall

7.4

Food

6.6

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000
Icelandair
7.1
Good
562 reviews
United Airlines
7.4
Good
8,999 reviews

Boarding

7.7

Comfort

7.3

Crew

8.1

Entertainment

7.1

Overall

7.4

Food

6.6

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000
Iberia
7.0
Good
3,001 reviews
United Airlines
7.4
Good
8,999 reviews

Boarding

7.7

Comfort

7.3

Crew

8.1

Entertainment

7.1

Overall

7.4

Food

6.6

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000
British Airways
6.7
Okay
7,483 reviews
United Airlines
7.4
Good
8,999 reviews

Boarding

7.7

Comfort

7.3

Crew

8.1

Entertainment

7.1

Overall

7.4

Food

6.6

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000

Related info for your journey

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

    A quick flight from Chicago O'Hare Intl Airport to London can take about 7h 45m. Icelandair provides one of the quickest options available for as low as $585. The distance from Chicago O'Hare Intl Airport to London is about 3939 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

    Flying on JetBlue is currently your cheapest option to London, with prices starting at $51. Additional round-trip tickets that might be worth considering are offered by SWISS and Scandinavian Airlines, with the lowest prices starting at $257 and $338, respectively. You may be able to fly from Chicago O'Hare Intl Airport to London for 93% less than the average price by searching for these airlines.

  • What are the most popular routes from Chicago O'Hare Intl Airport to London?

    Most travelers choose Chicago O'Hare Intl - London Heathrow, Chicago O'Hare Intl - London Gatwick or Chicago O'Hare Intl - London City when deciding on the best route from Chicago O'Hare Intl Airport to London.

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

    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 Chicago O'Hare Intl Airport to London on time: Royal Jordanian (80%), SriLankan Airlines (74%), Gulf Air (74%).

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

    Looking at all options, your cheapest flight can be booked for $394. While the most popular route (Chicago O'Hare Intl - London Heathrow) can be booked for $429 on average, our data indicates $2,602 when flying from Chicago O'Hare Intl Airport to London.

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

    Chicago O'Hare Intl Airport to London flights have a layover in Reykjavik most often.

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

    The majority of Reykjavik visitors spend their time at Harpa, Hallgrímskirkja, and Laugardalslaug Geothermal Pool. 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 can book a car rental at Reykjavik Keflavik Intl for about $48 per day to make their sightseeing more efficient.

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

    Chicago O'Hare Intl Airport to London flights have a layover in Dublin least often.

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

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

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

    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 London.

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

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

    Currently, May is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to London (average of $397). Flying from Chicago O'Hare Intl Airport to London in July is currently the most expensive (average of $611). 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

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Alternative routes for O'Hare Intl to London

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

Top 10 airlines flying from O'Hare Intl to London

Discover the top 10 airlines that operate flights from O'Hare Intl to London. 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 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
JetBlueCheapest$51Average$625FlexibilityNo cancel feeOn-time62%
SWISSCheapest$257Average$701FlexibilityNo cancel feeOn-time79%
Scandinavian AirlinesCheapest$338Average$569FlexibilityNo cancel feeOn-time77%
DeltaCheapest$345Average$939FlexibilityNo cancel feeOn-timeN/A
LufthansaCheapest$430Average$947FlexibilityNo cancel feeOn-time76%
TAP AIR PORTUGALCheapest$450Average$644FlexibilityNo cancel feeOn-timeN/A
IcelandairCheapest$481Average$659FlexibilityNo cancel feeOn-time76%
Alaska AirlinesCheapest$487Average$677FlexibilityNo cancel feeOn-time75%
British AirwaysCheapest$502Average$795FlexibilityNo cancel feeOn-time70%
Aer LingusCheapest$505Average$818FlexibilityNo cancel feeOn-timeN/A

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