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Cheap flights from Chicago O'Hare Intl Airport to London Heathrow Airport from C$ 364

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 3/2. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — LHR
7 Jan — 14 Jan1
1 adult

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 2 January 2025.

Round-trip from

C$ 859

One-way from

C$ 364

Popular in

June

Cheapest in

February

Average price

C$ 1,060
Scandinavian Airlines
  • Scandinavian Airlines
  • 30/3-7/4
  • 2 total stops
  • 30h 15m total
  • Chicago to London
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JetBlue
  • JetBlue
  • 3/2
  • 1 total stop
  • 10h 25m total
  • Chicago to London
Search Deals
High demand for flights, 19% 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 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 2 January 2025.

Sun 30/37:15 p.m.ORD - LHR
1 stop14h 45mScandinavian Airlines
Mon 7/46:40 a.m.LHR - ORD
1 stop15h 30mScandinavian Airlines
Deal found 1/1C$ 859
Sun 2/38:25 p.m.ORD - LHR
1 stop15h 05mTAP AIR PORTUGAL
Fri 7/36:00 a.m.LHR - ORD
1 stop15h 30mTAP AIR PORTUGAL
Deal found 1/1C$ 861
Wed 16/410:20 p.m.ORD - LHR
Nonstop7h 50mFinnair
Tue 29/410:20 a.m.LHR - ORD
1 stop13h 30mFinnair
Deal found 1/1C$ 909
Sun 2/25:05 p.m.ORD - LHR
1 stop10h 25mJetBlue
Wed 5/28:25 a.m.LHR - ORD
1 stop15h 30mJetBlue
Deal found 2/1C$ 913
Tue 23/95:45 p.m.ORD - LHR
Nonstop7h 35mBritish Airways
Fri 3/1010:30 a.m.LHR - ORD
1 stop11h 25mBritish Airways
Deal found 1/1C$ 920
Sun 19/15:50 p.m.ORD - LHR
Nonstop8h 05mMultiple Airlines
Tue 28/16:00 a.m.LHR - ORD
1 stop16h 15mMultiple Airlines
Deal found 2/1C$ 932
Mon 3/29:10 p.m.ORD - LHR
Nonstop8h 05mUnited Airlines
Wed 19/28:55 a.m.LHR - ORD
1 stop13h 20mUnited Airlines
Deal found 31/12C$ 933
Fri 18/47:30 p.m.ORD - LHR
1 stop10h 25mIcelandair
Thu 24/41:05 p.m.LHR - ORD
1 stop11h 15mIcelandair
Deal found 1/1C$ 938
Wed 16/47:55 p.m.ORD - LHR
1 stop11h 20mDelta
Wed 23/48:40 a.m.LHR - ORD
2 stops16h 01mDelta
Deal found 31/12C$ 972
Sat 22/28:30 p.m.ORD - LHR
1 stop19h 55mTurkish Airlines
Mon 17/310:35 p.m.LHR - ORD
1 stop17h 35mTurkish Airlines
Deal found 1/1C$ 1,040
Sun 16/21:20 p.m.ORD - LHR
2 stops37h 00mAustrian Airlines
Sun 23/212:05 p.m.LHR - ORD
1 stop32h 00mAustrian Airlines
Deal found 2/1C$ 1,053
Thu 16/17:05 p.m.ORD - LHR
2 stops15h 35mSWISS
Mon 20/18:05 p.m.LHR - ORD
1 stop26h 10mSWISS
Deal found 2/1C$ 1,074

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

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 629,999 searches. Data last updated 2 January 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Sun 30/3

7:15 p.m.-4:00 p.m.

1 stop14h 45m

London Heathrow

Mon 7/4

6:40 a.m.-4:10 p.m.

1 stop15h 30m

C$ 859

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Sun 2/3

8:25 p.m.-5:30 p.m.

1 stop15h 05m

London Heathrow

Thu 6/3

7:55 p.m.-3:30 p.m.

1 stop25h 35m

C$ 861

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Wed 16/4

10:20 p.m.-12:10 p.m.

Nonstop7h 50m

London Heathrow

Tue 29/4

10:20 a.m.-5:50 p.m.

1 stop13h 30m

C$ 909

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Sun 2/2

5:05 p.m.-9:30 a.m.

1 stop10h 25m

London Heathrow

Wed 5/2

8:25 a.m.-5:55 p.m.

1 stop15h 30m

C$ 913

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Sun 19/1

5:50 p.m.-7:55 a.m.

Nonstop8h 05m

London Heathrow

Tue 28/1

6:00 a.m.-4:15 p.m.

1 stop16h 15m

C$ 932

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Mon 3/2

9:10 p.m.-11:15 a.m.

Nonstop8h 05m

London Heathrow

Thu 20/2

8:55 a.m.-4:15 p.m.

1 stop13h 20m

C$ 933

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Fri 18/4

7:30 p.m.-11:55 a.m.

1 stop10h 25m

London Heathrow

Fri 25/4

1:05 p.m.-6:20 p.m.

1 stop11h 15m

C$ 938

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Wed 16/4

5:50 p.m.-7:20 a.m.

Nonstop7h 30m

London Heathrow

Tue 22/4

9:15 a.m.-11:50 a.m.

Nonstop8h 35m

C$ 964

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Wed 16/4

7:55 p.m.-1:15 p.m.

1 stop11h 20m

London Heathrow

Wed 23/4

8:40 a.m.-6:41 p.m.

2 stops16h 01m

C$ 972

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Sun 19/1

11:55 a.m.-4:00 p.m.

1 stop22h 05m

London Heathrow

Tue 28/1

10:35 p.m.-10:10 a.m.

1 stop17h 35m

C$ 984

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/1

Showing 1-10 of 22 results
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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.

Travel insights for flights from O'Hare Intl to Heathrow

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

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 27 December 2024.

Booking 19 days in advance of your planned departure date is, on average, the best time to get cheap flights from Chicago O'Hare Intl Airport to London Heathrow Airport. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from Chicago O'Hare Intl Airport to London Heathrow Airport?

Currently, January is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to London Heathrow Airport (average of C$ 560). Flying from Chicago O'Hare Intl Airport to London Heathrow Airport in July is currently the most expensive (average of C$ 874). 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 2 January 2025.

When flying from Chicago O'Hare Intl Airport to London Heathrow Airport, the time of day you fly usually plays a role in the price. Save by searching for a flight at noon, which can drop the price by up to 40% versus a flight in the morning.

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

Explore weekly flight availability from O'Hare Intl to Heathrow. 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 2 January 2025.

The most flights from ORD to LHR are scheduled on a Monday (40 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (40 on average).

Rainfall in Heathrow by month

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

In terms of precipitation, rainfall in London Heathrow Airport ranges from 40.0 - 70.0 mm per month. January is typically the wettest month, when rainfall can reach 70.0 mm. July is typically the driest time to visit London Heathrow Airport when rainfall is around 40.0 mm.

Temperature in Heathrow by month

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

If weather is an important factor for your trip to London Heathrow Airport, 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 17.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 4.0 C).

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 2 January 2025.
Peruse reviews from past customers who have flown with United Airlines, JetBlue and Delta from Chicago to London to help guide your decision. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
8,537 reviews
Check prices

Boarding

8.2

Food

7.3

Crew

8.6

Entertainment

7.9

Overall

8.0

Comfort

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
8,537 reviews
Delta
8.0
Very good
8,537 reviews
Check prices

Boarding

8.2

Food

7.3

Crew

8.6

Entertainment

7.9

Overall

8.0

Comfort

8.0

Reviews

1 / 10

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

Finnair
7.7
Good
1,282 reviews
Delta
8.0
Very good
8,537 reviews
Check prices

Boarding

8.2

Food

7.3

Crew

8.6

Entertainment

7.9

Overall

8.0

Comfort

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
785 reviews
Delta
8.0
Very good
8,537 reviews
Check prices

Boarding

8.2

Food

7.3

Crew

8.6

Entertainment

7.9

Overall

8.0

Comfort

8.0

Reviews

1 / 10

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

SWISS
7.5
Good
1,590 reviews
Delta
8.0
Very good
8,537 reviews
Check prices

Boarding

8.2

Food

7.3

Crew

8.6

Entertainment

7.9

Overall

8.0

Comfort

8.0

Reviews

1 / 10

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

JetBlue
7.4
Good
3,218 reviews
Delta
8.0
Very good
8,537 reviews
Check prices

Boarding

8.2

Food

7.3

Crew

8.6

Entertainment

7.9

Overall

8.0

Comfort

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 Heathrow. 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 Heathrow Airport round-trip?

    Currently priced at C$ 859, Scandinavian Airlines will fly you from Chicago O'Hare Intl Airport to London Heathrow Airport and back. In addition to Scandinavian Airlines, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from TAP AIR PORTUGAL and Finnair - these airlines can fly you to your destination from C$ 861 and C$ 909, respectively. Scandinavian Airlines is priced at 25% lower than the current average price of a flight leaving 3 months from now.

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

    To fly one-way, consider booking your trip with JetBlue, which is currently one of the cheapest options available, starting at C$ 364. Icelandair flights start at C$ 469 while deals on Finnair start at C$ 585 one-way.

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

    The top 3 most reliable airlines when flying from Chicago O'Hare Intl Airport to London Heathrow Airport are Lufthansa (82%), Air Canada (77%) and Austrian Airlines (77%).

  • 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, January is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to London Heathrow Airport (average of C$ 560). Flying from Chicago O'Hare Intl Airport to London Heathrow Airport in July is currently the most expensive (average of C$ 874). 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.

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Certainly. Search results for flights to Heathrow from O'Hare Intl shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

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