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$248+ 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 3/1. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — LON
Jan 26 — Feb 21
Sun 1/26
Sun 2/2
1 adult, Economy
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The best prices from Chicago O'Hare Intl to London are usually found in February or October, booked 40 days in advance, depart on a Tuesday or Wednesday and return on a Tuesday

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 January 21, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$597
(Iberia)

One-way from

$248
(Kiwi.com)

Popular in

June

Cheapest in

February

Average price

$696
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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High demand for flights, 18% potential price rise
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Best time to find cheap flights, 3% potential price drop
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Average for round-trip flights in January 2025
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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 January 21, 2025.

This Iberia deal was found by Cheapflights users on 1/19. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/48:25 pmORD - LHR
Nonstop7h 35mIberia
Wed 3/126:15 amLHR - ORD
1 stop14h 15mIberia
Deal found 1/19$597
This CrystalTravel deal was found by Cheapflights users on 1/20. 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 CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 2/166:30 pmORD - LGW
1 stop10h 25mIcelandair
Fri 2/2111:55 amLGW - ORD
1 stop11h 25mIcelandair
Deal found 1/20$597
This Mytrip deal was found by Cheapflights users on 1/20. 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 3/43:55 pmORD - LTN
1 stop11h 50mMultiple Airlines
Wed 3/126:50 amLTN - ORD
1 stop13h 10mMultiple Airlines
Deal found 1/20$598
This Kiwi.com deal was found by Cheapflights users on 1/20. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/275:15 amORD - LGW
2 stops48h 45mMultiple Airlines
Wed 3/512:00 pmLGW - ORD
1 stop31h 47mMultiple Airlines
Deal found 1/20$598
This Mytrip deal was found by Cheapflights users on 1/20. 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 3/43:55 pmORD - STN
1 stop11h 40mMultiple Airlines
Wed 3/126:30 amSTN - ORD
1 stop13h 30mMultiple Airlines
Deal found 1/20$598
This Flightnetwork deal was found by Cheapflights users on 1/20. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/67:40 pmORD - LHR
2 stops14h 45mScandinavian Airlines
Thu 3/137:05 amLHR - ORD
2 stops16h 45mScandinavian Airlines
Deal found 1/20$599
This Gotogate deal was found by Cheapflights users on 1/20. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/99:25 pmORD - LGW
2 stops18h 15mTAP AIR PORTUGAL
Thu 3/1310:40 amLGW - ORD
1 stop34h 50mTAP AIR PORTUGAL
Deal found 1/20$608
This Gotogate deal was found by Cheapflights users on 1/20. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/76:30 pmORD - LHR
1 stop10h 20mIcelandair
Wed 2/128:40 pmLHR - ORD
1 stop26h 40mIcelandair
Deal found 1/20$610
This CrystalTravel deal was found by Cheapflights users on 1/20. 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 CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/1011:55 amORD - LGW
1 stop27h 35mTurkish Airlines
Tue 2/184:55 pmLGW - ORD
1 stop23h 15mTurkish Airlines
Deal found 1/20$613
This FlightHub deal was found by Cheapflights users on 1/19. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/86:00 pmORD - LHR
1 stop12h 45mTAP AIR PORTUGAL
Thu 10/167:50 pmLHR - ORD
1 stop26h 10mTAP AIR PORTUGAL
Deal found 1/19$616
This Mytrip deal was found by Cheapflights users on 1/20. 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 3/115:22 pmORD - LHR
2 stops19h 08mMultiple Airlines
Tue 3/188:15 amLHR - ORD
2 stops28h 29mMultiple Airlines
Deal found 1/20$619
This Kiwi.com deal was found by Cheapflights users on 1/20. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/47:40 pmORD - LCY
1 stop11h 00mMultiple Airlines
Wed 3/126:50 amLCY - ORD
1 stop17h 05mMultiple Airlines
Deal found 1/20$619

Find flights from O'Hare Intl to London within your budget

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 January 21, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Tue 3/4

6:26 pm-8:15 am

Nonstop7h 49m

London Heathrow

Wed 3/12

6:15 am-3:30 pm

1 stop14h 15m

$597

ChicagoLondon

ORD - LGW

ORDLGW

Chicago O'Hare Intl

Sun 2/16

6:30 pm-10:55 am

1 stop10h 25m

London Gatwick

Fri 2/21

11:55 am-5:20 pm

1 stop11h 25m

$597

ChicagoLondon

ORD - LGW

ORDLGW

Chicago O'Hare Intl

Thu 2/27

5:15 am-12:00 pm

2 stops48h 45m

London Gatwick

Wed 3/5

12:00 pm-1:47 pm

1 stop31h 47m

$598

ChicagoLondon

ORD - STN

ORDSTN

Chicago O'Hare Intl

Tue 3/4

3:55 pm-9:35 am

1 stop11h 40m

London Stansted

Wed 3/12

6:30 am-3:00 pm

1 stop13h 30m

$598

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Thu 3/6

7:40 pm-4:25 pm

2 stops14h 45m

London Heathrow

Thu 3/13

7:05 am-6:50 pm

2 stops16h 45m

$599

ChicagoLondon

ORD - LTN

ORDLTN

Chicago O'Hare Intl

Thu 3/6

3:55 pm-8:45 am

1 stop10h 50m

London Luton

Thu 3/13

9:00 am-6:55 pm

1 stop14h 55m

$599

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Wed 2/19

7:15 pm-3:30 pm

1 stop14h 15m

London Heathrow

Sun 2/23

6:00 am-3:30 pm

1 stop15h 30m

$601

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Fri 2/7

6:30 pm-10:50 am

1 stop10h 20m

London Heathrow

Wed 2/12

8:40 pm-5:20 pm

1 stop26h 40m

$610

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Thu 3/6

3:55 pm-9:05 am

1 stop11h 10m

London Heathrow

Thu 3/13

8:50 am-3:00 pm

1 stop11h 10m

$611

ChicagoLondon

ORD - LGW

ORDLGW

Chicago O'Hare Intl

Fri 2/21

8:20 pm-8:20 am

2 stops30h 00m

London Gatwick

Sat 3/1

4:35 pm-3:30 pm

1 stop28h 55m

$612

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/20

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 January.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
KAYAKPrice Accuracy-Trust Score*1 star
CheapOairPrice Accuracy2 starsTrust Score*2 stars
CheapflightsfaresPrice Accuracy3 starsTrust Score*1 star
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.

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.

Travel insights for flights from O'Hare Intl to London

Get recent, data-driven insights about flights from O'Hare Intl to London including ideal travel times, pricing trends, and more.

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 January 17, 2025.

The best time to book flights from Chicago O'Hare Intl Airport to London is 40 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 $1,137). 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 January 21, 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 6% on the flight price compared to flying in the afternoon, 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 January 21, 2025.

The most flights from ORD to LON are scheduled on a Monday (38 on average). You will have fewer flight options on Friday, which is when the least amount of flights are scheduled (35 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 January 21, 2025.
Read reviews from past customers who have flown SWISS, JetBlue and Air Canada 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
8,521 reviews

Crew

8.6

Comfort

8.0

Entertainment

7.9

Food

7.3

Boarding

8.2

Overall

8.0

Reviews

1 / 10

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

Delta
8.0
Very good
8,521 reviews
Delta
8.0
Very good
8,521 reviews

Crew

8.6

Comfort

8.0

Entertainment

7.9

Food

7.3

Boarding

8.2

Overall

8.0

Reviews

1 / 10

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

KLM
7.8
Good
1,341 reviews
Delta
8.0
Very good
8,521 reviews

Crew

8.6

Comfort

8.0

Entertainment

7.9

Food

7.3

Boarding

8.2

Overall

8.0

Reviews

1 / 10

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

LOT
7.6
Good
1,117 reviews
Delta
8.0
Very good
8,521 reviews

Crew

8.6

Comfort

8.0

Entertainment

7.9

Food

7.3

Boarding

8.2

Overall

8.0

Reviews

1 / 10

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

Finnair
7.6
Good
1,285 reviews
Delta
8.0
Very good
8,521 reviews

Crew

8.6

Comfort

8.0

Entertainment

7.9

Food

7.3

Boarding

8.2

Overall

8.0

Reviews

1 / 10

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

Austrian Airlines
7.6
Good
786 reviews
Delta
8.0
Very good
8,521 reviews

Crew

8.6

Comfort

8.0

Entertainment

7.9

Food

7.3

Boarding

8.2

Overall

8.0

Reviews

1 / 10

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 Iberia is currently your cheapest option to London, with prices starting at $597. Additional round-trip tickets that might be worth considering are offered by Icelandair and Scandinavian Airlines, with the lowest prices starting at $597 and $599, respectively. You may be able to fly from Chicago O'Hare Intl Airport to London for 23% 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 $252 on Icelandair. Other airlines that offer cheap prices include JetBlue from $274 and SWISS from $298 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: Aer Lingus (70%), Iberia (68%), American Airlines (66%).

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

    Looking at all options, your cheapest flight can be booked for $391. While the most popular route (Chicago O'Hare Intl - London Heathrow) can be booked for $465 on average our data indicates $1,527 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 Dublin 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 $51 per day to make their sightseeing more efficient.

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

    Dublin travelers tend to visit Molly Malone Statue, St. Patrick's Cathedral, and Merrion Square more than any other notable places. Molly Malone Statue, St. Patrick's Cathedral and Merrion Square are located about 5.8 mi, 6.1 mi, and 6.0 mi, respectively from Dublin if you are interested in checking them out. Travelers can rent a car at Dublin for an average daily rate of $20 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 Copenhagen 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 $1,137). 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
Hayes
Hounslow
Thornton Heath
Harrow
Luton
Wembley
Canterbury
Gatwick
Horley
Milton Keynes
Dover
Watford
Orpington
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.
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Midway to Manchester flights
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Midway to Newcastle upon Tyne 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 January 21, 2025.
AirlineCheapestAverageFlexibilityOn-time
Scandinavian AirlinesCheapest$381Average$552FlexibilityNo cancel feeOn-time77%
DeltaCheapest$451Average$882FlexibilityNo cancel feeOn-timeN/A
IcelandairCheapest$471Average$641FlexibilityNo cancel feeOn-time76%
TAP AIR PORTUGALCheapest$507Average$849FlexibilityNo cancel feeOn-timeN/A
JetBlueCheapest$516Average$679FlexibilityNo cancel feeOn-time62%
Air CanadaCheapest$554Average$742FlexibilityNo cancel feeOn-time67%
FinnairCheapest$568Average$787FlexibilityNo cancel feeOn-time76%
Virgin AtlanticCheapest$570Average$683FlexibilityNo cancel feeOn-time72%
LufthansaCheapest$577Average$922FlexibilityNo cancel feeOn-time76%
SWISSCheapest$581Average$836FlexibilityNo cancel feeOn-time79%
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