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$264+ 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 7/4. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — LON
Mar 25 — Apr 11
Tue 3/25
Tue 4/1
1 adult, Economy
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Cheapflights Tip: The best prices from Chicago O'Hare Intl to London are usually found in February or October, booked 48 days in advance, depart on a Wednesday or Tuesday 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 March 20, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$587
(Gotogate)

One-way from

$264
(Mytrip)

Popular in

June

Cheapest in

February

Average price

$720

Good round-trip deal

$672 or less

Good one-way deal

$461 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. 18% potential increase in price ($170 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($28 potential savings vs. average RT price).
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Average for round-trip flights in March 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 March 20, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 3/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/221:06 pmORD - LHR
1 stop11h 14mIberia
Tue 9/3012:15 pmLHR - ORD
Nonstop8h 35mIberia
Deal found 3/19$587
This Ticket deal was found by Cheapflights users on 3/18. 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 Ticket is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/37:25 pmORD - LGW
1 stop13h 15mIcelandair
Sat 5/101:00 pmLGW - ORD
1 stop11h 15mIcelandair
Deal found 3/18$587
This Flightnetwork deal was found by Cheapflights users on 3/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/77:30 pmORD - LHR
1 stop10h 25mIcelandair
Tue 4/299:25 pmLHR - ORD
1 stop26h 50mIcelandair
Deal found 3/19$588
This Mytrip deal was found by Cheapflights users on 3/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/110:40 amORD - LGW
3 stops19h 05mMultiple Airlines
Tue 4/2910:00 amLGW - ORD
1 stop34h 26mMultiple Airlines
Deal found 3/20$588
This Gotogate deal was found by Cheapflights users on 3/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/79:15 pmORD - LHR
Nonstop7h 45mFinnair
Tue 4/2910:20 amLHR - ORD
1 stop13h 30mFinnair
Deal found 3/19$591
This Booking.com deal was found by Cheapflights users on 3/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/247:15 pmORD - LHR
1 stop32h 05mScandinavian Airlines
Thu 9/46:40 amLHR - ORD
1 stop15h 30mScandinavian Airlines
Deal found 3/19$592
This Mytrip deal was found by Cheapflights users on 3/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/247:25 pmORD - STN
2 stops16h 00mMultiple Airlines
Mon 4/286:10 amSTN - ORD
2 stops18h 05mMultiple Airlines
Deal found 3/20$594
This Gotogate deal was found by Cheapflights users on 3/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/63:35 pmORD - LHR
1 stop12h 25mMultiple Airlines
Tue 4/156:00 amLHR - ORD
1 stop12h 10mMultiple Airlines
Deal found 3/19$596
This eDestinos deal was found by Cheapflights users on 3/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/228:50 pmORD - LHR
1 stop9h 50mAer Lingus
Tue 4/298:50 amLHR - ORD
1 stop11h 10mAer Lingus
Deal found 3/19$598
This oojo deal was found by Cheapflights users on 3/18. 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.
Wed 4/3011:36 amORD - LGW
1 stop14h 34mBritish Airways
Mon 5/198:40 pmLGW - ORD
1 stop23h 35mBritish Airways
Deal found 3/18$618
This United deal was found by Cheapflights users on 3/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/309:20 pmORD - LHR
Nonstop8h 25mUnited Airlines
Mon 5/1912:10 pmLHR - ORD
1 stop30h 00mUnited Airlines
Deal found 3/19$620
This Flighttix deal was found by Cheapflights users on 3/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Flighttix is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/65:08 pmORD - LHR
1 stop9h 47mVirgin Atlantic
Tue 4/159:00 amLHR - ORD
1 stop12h 00mVirgin Atlantic
Deal found 3/19$622

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 March 20, 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 - LHR

ORDLHR

Chicago O'Hare Intl

Tue 4/8

4:55 pm-6:50 am

Nonstop7h 55m

London Heathrow

Tue 4/22

10:20 am-5:50 pm

1 stop13h 30m

$587

ChicagoLondon

ORD - LGW

ORDLGW

Chicago O'Hare Intl

Sat 5/3

7:25 pm-2:40 pm

1 stop13h 15m

London Gatwick

Sat 5/10

1:00 pm-6:15 pm

1 stop11h 15m

$587

ChicagoLondon

ORD - LGW

ORDLGW

Chicago O'Hare Intl

Tue 4/1

10:40 am-11:45 am

3 stops19h 05m

London Gatwick

Tue 4/29

10:00 am-2:26 pm

1 stop34h 26m

$588

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Mon 4/7

7:30 pm-11:55 am

1 stop10h 25m

London Heathrow

Tue 4/29

9:25 pm-6:15 pm

1 stop26h 50m

$588

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Tue 4/22

4:55 pm-6:50 am

Nonstop7h 55m

London Heathrow

Wed 4/30

9:15 am-11:45 am

Nonstop8h 30m

$589

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Sun 8/24

7:15 pm-9:20 am

1 stop32h 05m

London Heathrow

Thu 9/4

6:40 am-4:10 pm

1 stop15h 30m

$592

ChicagoLondon

ORD - STN

ORDSTN

Chicago O'Hare Intl

Thu 4/24

7:25 pm-5:25 pm

2 stops16h 00m

London Stansted

Mon 4/28

6:10 am-6:15 pm

2 stops18h 05m

$594

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Sun 4/6

3:35 pm-10:00 am

1 stop12h 25m

London Heathrow

Tue 4/15

6:00 am-12:10 pm

1 stop12h 10m

$596

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Tue 4/15

8:50 pm-1:55 pm

1 stop11h 05m

London Heathrow

Tue 4/22

7:40 am-2:00 pm

1 stop12h 20m

$597

ChicagoLondon

ORD - LGW

ORDLGW

Chicago O'Hare Intl

Wed 4/30

11:36 am-8:10 am

1 stop14h 34m

London Gatwick

Mon 5/19

8:40 pm-2:15 pm

1 stop23h 35m

$618

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/19

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 March.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
CheapflightsfaresPrice Accuracy3 starsTrust Score*2 stars
ScholarTripPrice Accuracy3 starsTrust Score*3 stars
Kiwi.comPrice Accuracy3 starsTrust Score*2 stars
oojoPrice Accuracy3 starsTrust Score*2 stars
Justfly.comPrice Accuracy3 starsTrust Score*3 stars
GurufarePrice 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 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 flight deals on Cheapflights vs. FlightHub >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 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 flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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

Prepare for long walks between terminals at ORD. Use the free shuttle train outside security for easier transfers.

Read more about ORDby Ramsey Qubein
LHR

Take the Heathrow Express for the fastest route to central London, reaching Paddington Station quickly.

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

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 March 14, 2025.

The best time to book flights from Chicago O'Hare Intl Airport to London is 48 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, November is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to London (average of $661). Flying from Chicago O'Hare Intl Airport to London in June is currently the most expensive (average of $1,122). 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 March 20, 2025.

It’s typically best to fly out from Chicago O'Hare Intl Airport to London in the morning. Doing so could potentially save you 13% on the flight price compared to flying in the evening, 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 Wednesday at noon when fares are most often at their lowest. Monday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from Chicago O'Hare Intl Airport to London

Explore weekly flight availability from O'Hare Intl to London. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated March 20, 2025.

The most flights from ORD to LON are scheduled on a Monday (38 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (38 on average).

Rainfall in London by month

Plan your trip to London by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in London ranges from 1.6 - 2.8 inches per month. January is typically the wettest month, when rainfall can reach 2.8 in. July is typically the driest time to visit London when rainfall is around 1.6 in.

Temperature in London by month

Plan your trip to London by taking into account the average temperature totals by month.

If weather is an important factor for your trip to London, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 62.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 39.2 F).

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 March 20, 2025.
Read reviews from past customers who have flown Delta, KLM and Finnair from Chicago to London. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,896 reviews

Overall

8.0

Entertainment

7.9

Crew

8.5

Boarding

8.2

Comfort

8.0

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Delta
8.0
Very good
7,896 reviews
Delta
8.0
Very good
7,896 reviews

Overall

8.0

Entertainment

7.9

Crew

8.5

Boarding

8.2

Comfort

8.0

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
KLM
7.8
Good
1,319 reviews
Delta
8.0
Very good
7,896 reviews

Overall

8.0

Entertainment

7.9

Crew

8.5

Boarding

8.2

Comfort

8.0

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Finnair
7.6
Good
1,266 reviews
Delta
8.0
Very good
7,896 reviews

Overall

8.0

Entertainment

7.9

Crew

8.5

Boarding

8.2

Comfort

8.0

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
SWISS
7.5
Good
1,567 reviews
Delta
8.0
Very good
7,896 reviews

Overall

8.0

Entertainment

7.9

Crew

8.5

Boarding

8.2

Comfort

8.0

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Air France
7.4
Good
1,422 reviews
Delta
8.0
Very good
7,896 reviews

Overall

8.0

Entertainment

7.9

Crew

8.5

Boarding

8.2

Comfort

8.0

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

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.

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

    Flying on Finnair is currently your cheapest option to London, with prices starting at $587. Additional round-trip tickets that might be worth considering are offered by Icelandair and Iberia, with the lowest prices starting at $587 and $589, respectively. You may be able to fly from Chicago O'Hare Intl Airport to London for 24% less than the average price by searching for these airlines.

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

    One-way options have recently been found by users for as low as $268 on TAP AIR PORTUGAL. Other airlines that offer cheap prices include JetBlue from $271 and Icelandair from $272 one-way.

  • 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 (87%), Air Canada (80%), Austrian Airlines (80%).

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

    Looking at all options, your cheapest flight can be booked for $408. While the most popular route (Chicago O'Hare Intl - London Heathrow) can be booked for $556 on average our data indicates $2,946 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. Reykjavik is followed by Copenhagen in terms of the most popular layover location on flights from Chicago O'Hare Intl Airport to London.

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

    The majority of Reykjavik visitors spend their time at Hallgrímskirkja, Harpa, and Laugardalslaug Geothermal Pool. 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 can book a car rental at Reykjavik Keflavik Intl for about $53 per day to make their sightseeing more efficient.

  • What are some popular points of interest to see during a layover in Copenhagen?

    Copenhagen travelers tend to visit Tivoli, Kongens Nytorv, and Rådhuspladsen more than any other notable places. Tivoli, Kongens Nytorv and Rådhuspladsen are located about 5.3 mi, 5.1 mi, and 5.2 mi, respectively from Kastrup Copenhagen if you are interested in checking them out. Travelers can rent a car at Kastrup Copenhagen for an average daily rate of $36 to make sightseeing during their layover a little easier.

  • 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, November is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to London (average of $661). Flying from Chicago O'Hare Intl Airport to London in June is currently the most expensive (average of $1,122). 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
Hounslow
Hayes
Thornton Heath
Luton
Wembley
Harrow
Horley
Canterbury
Gatwick
Dover
Orpington
Watford
Milton Keynes
Croydon
Borehamwood
Bromley
Folkestone
Ilford
Aylesbury
Chelmsford

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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
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Midway to Heathrow flights
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O'Hare Intl to Luton flights
Midway to Edinburgh flights
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Midway to Manchester flights
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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 March 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
SWISSCheapest$257Average$695FlexibilityNo cancel feeOn-time79%
Scandinavian AirlinesCheapest$381Average$601FlexibilityNo cancel feeOn-time77%
DeltaCheapest$451Average$843FlexibilityNo cancel feeOn-timeN/A
IcelandairCheapest$466Average$632FlexibilityNo cancel feeOn-time76%
LufthansaCheapest$493Average$911FlexibilityNo cancel feeOn-time76%
TAP AIR PORTUGALCheapest$506Average$763FlexibilityNo cancel feeOn-timeN/A
JetBlueCheapest$516Average$679FlexibilityNo cancel feeOn-time62%
Air CanadaCheapest$554Average$745FlexibilityNo cancel feeOn-time67%
FinnairCheapest$563Average$723FlexibilityNo cancel feeOn-time76%
IberiaCheapest$582Average$857FlexibilityNo cancel feeOn-time77%
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