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Cheap flights from Chicago O'Hare Intl Airport to London Heathrow Airport from C$ 297

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 22/1. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — LHR
7 Dec — 14 Dec1
1 adult

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 637,770 searches. Data last updated 2 December 2024.

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Fly to

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Route

Depart

Return

Price

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Mon 31/3

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

Nonstop7h 55m

London Heathrow

Thu 10/4

9:30 a.m.-5:25 p.m.

1 stop13h 55m

C$ 836

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Sun 9/3

8:40 p.m.-5:40 p.m.

1 stop16h 00m

London Heathrow

Sat 15/3

5:30 p.m.-6:50 p.m.

2 stops30h 20m

C$ 837

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Wed 22/1

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

Nonstop8h 05m

London Heathrow

Wed 29/1

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

1 stop13h 20m

C$ 840

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Tue 22/4

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

1 stop10h 25m

London Heathrow

Thu 1/5

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

1 stop11h 15m

C$ 844

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Wed 23/4

6:00 p.m.-12:45 p.m.

1 stop12h 45m

London Heathrow

Sat 3/5

8:00 a.m.-4:10 p.m.

1 stop14h 10m

C$ 847

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Sun 12/1

2:03 p.m.-7:15 a.m.

1 stop11h 12m

London Heathrow

Tue 21/1

10:00 a.m.-9:28 p.m.

2 stops17h 28m

C$ 866

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Mon 30/12

9:05 p.m.-6:40 a.m.

1 stop27h 35m

London Heathrow

Fri 10/1

2:30 p.m.-1:11 p.m.

1 stop28h 41m

C$ 873

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Fri 4/4

11:01 a.m.-9:30 a.m.

1 stop16h 29m

London Heathrow

Sat 12/4

8:25 a.m.-7:09 p.m.

1 stop16h 44m

C$ 900

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Wed 16/4

2:20 p.m.-11:25 a.m.

1 stop15h 05m

London Heathrow

Mon 21/4

8:05 p.m.-12:10 p.m.

1 stop22h 05m

C$ 911

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Thu 6/3

4:55 p.m.-10:35 a.m.

1 stop11h 40m

London Heathrow

Wed 12/3

8:40 a.m.-3:30 p.m.

1 stop11h 50m

C$ 922

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/12

Showing 1-10 of 28 results
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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 December 2024.

Round-trip from

C$ 836

One-way from

C$ 297

Popular in

June

Cheapest in

February
Finnair
  • Finnair
  • 31/3-10/4
  • 1 total stop
  • 21h 50m total
  • Chicago to London
Search Deals
Icelandair
  • Icelandair
  • 22/1
  • 1 total stop
  • 10h 20m total
  • Chicago to London
Search Deals
High demand for flights, 28% potential price rise
Search Deals
Best time to find cheap flights, 18% potential price drop
Search Deals

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 December 2024.

Tue 31/1210:00 p.m.ORD - LHR
Nonstop7h 40mFinnair
Thu 22/510:20 a.m.LHR - ORD
1 stop13h 05mFinnair
Deal found 2/12C$ 838
Mon 30/129:29 p.m.ORD - LHR
1 stop28h 01mUnited Airlines
Thu 9/111:10 a.m.LHR - ORD
1 stop29h 00mUnited Airlines
Deal found 2/12C$ 850
Tue 31/121:57 p.m.ORD - LHR
1 stop11h 58mDelta
Fri 17/111:45 a.m.LHR - ORD
2 stops15h 08mDelta
Deal found 2/12C$ 852
Tue 3/129:10 p.m.ORD - LHR
Nonstop8h 05mMultiple Airlines
Wed 11/126:00 a.m.LHR - ORD
1 stop16h 15mMultiple Airlines
Deal found 30/11C$ 868
Tue 3/127:05 p.m.ORD - LHR
1 stop16h 45mSWISS
Mon 9/126:40 p.m.LHR - ORD
1 stop27h 35mSWISS
Deal found 2/12C$ 894
Mon 30/127:10 p.m.ORD - LHR
1 stop14h 50mScandinavian Airlines
Mon 13/16:40 a.m.LHR - ORD
1 stop15h 10mScandinavian Airlines
Deal found 1/12C$ 901
Wed 11/122:05 p.m.ORD - LHR
1 stop11h 00mKLM
Wed 18/1212:20 p.m.LHR - ORD
1 stop12h 11mKLM
Deal found 1/12C$ 911
Wed 4/127:15 p.m.ORD - LHR
1 stop14h 15mTAP AIR PORTUGAL
Sat 14/127:55 p.m.LHR - ORD
1 stop25h 35mTAP AIR PORTUGAL
Deal found 1/12C$ 921
Tue 3/121:35 p.m.ORD - LHR
2 stops22h 45mAir France
Tue 10/126:20 a.m.LHR - ORD
2 stops16h 10mAir France
Deal found 2/12C$ 997
Mon 2/1210:05 p.m.ORD - LHR
Nonstop7h 35mBritish Airways
Sat 14/1211:55 a.m.LHR - ORD
Nonstop8h 50mBritish Airways
Deal found 1/12C$ 1,041

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 22 November 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 December 2024.

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 December 2024.

The most flights from ORD to LHR are scheduled on a Monday (38 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (22 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 December 2024.
Peruse reviews from past customers who have flown with Delta, Finnair and Scandinavian Airlines 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
8,698 reviews
Check prices

Comfort

7.9

Overall

8.0

Crew

8.6

Boarding

8.2

Entertainment

7.9

Food

7.3

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
8,698 reviews
Delta
8.0
Very good
8,698 reviews
Check prices

Comfort

7.9

Overall

8.0

Crew

8.6

Boarding

8.2

Entertainment

7.9

Food

7.3

Reviews

1 / 10

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

Alaska Airlines
8.0
Very good
9,513 reviews
Delta
8.0
Very good
8,698 reviews
Check prices

Comfort

7.9

Overall

8.0

Crew

8.6

Boarding

8.2

Entertainment

7.9

Food

7.3

Reviews

1 / 10

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

KLM
7.8
Good
1,343 reviews
Delta
8.0
Very good
8,698 reviews
Check prices

Comfort

7.9

Overall

8.0

Crew

8.6

Boarding

8.2

Entertainment

7.9

Food

7.3

Reviews

1 / 10

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

Finnair
7.7
Good
1,297 reviews
Delta
8.0
Very good
8,698 reviews
Check prices

Comfort

7.9

Overall

8.0

Crew

8.6

Boarding

8.2

Entertainment

7.9

Food

7.3

Reviews

1 / 10

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

SWISS
7.6
Good
1,628 reviews
Delta
8.0
Very good
8,698 reviews
Check prices

Comfort

7.9

Overall

8.0

Crew

8.6

Boarding

8.2

Entertainment

7.9

Food

7.3

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$ 836, Finnair will fly you from Chicago O'Hare Intl Airport to London Heathrow Airport and back. In addition to Finnair, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Scandinavian Airlines and United Airlines - these airlines can fly you to your destination from C$ 837 and C$ 840, respectively. Finnair is priced at 24% 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 Icelandair, which is currently one of the cheapest options available, starting at C$ 297. TAP AIR PORTUGAL flights start at C$ 468 while deals on JetBlue start at C$ 480 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 Brussels Airlines (77%), Air Canada (75%) and Austrian Airlines (75%).

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

    Looking for the cheapest flight from Chicago O'Hare Intl Airport to London Heathrow Airport? While on average our users pay C$ 1,526, our data indicates the cheapest price to be C$ 524. The most popular route (Chicago O'Hare Intl - London Heathrow), is priced around C$ 1,124.

  • 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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Why should you use Cheapflights to find cheap flight tickets from O'Hare Intl to Heathrow?

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Can Cheapflights find flights from O'Hare Intl to Heathrow with no change fees?

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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Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

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