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Cheap flights from Chicago O'Hare Intl Airport to London Heathrow Airport from £170

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 16/3. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — LHR
22 Dec — 29 Dec1
1 adult

The best prices from Chicago O'Hare Intl to London Heathrow are usually found in February or October, booked 8 days in advance, depart on a Wednesday or Thursday and return on a Tuesday

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 17 December 2024.

Round-trip from

£468

One-way from

£170

Popular in

June

Cheapest in

February

Average price

£709
Scandinavian Airlines
  • Scandinavian Airlines
  • 17/3-26/3
  • 4 total stops
  • 43h 55m total
  • Chicago to London
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WestJet
  • WestJet
  • 16/3
  • 1 total stop
  • 15h 05m total
  • Chicago to London
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High demand for flights, 20% 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 December 2024
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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 17 December 2024.

Tue 31/1221:10ORD - LHR
Nonstop8h 05mUnited Airlines
Mon 13/113:45LHR - ORD
1 stop32h 30mUnited Airlines
Deal found 15/12£506
Sat 28/1218:06ORD - LHR
2 stops30h 24mAir Canada
Thu 9/109:00LHR - ORD
2 stops16h 37mAir Canada
Deal found 16/12£531
Mon 30/1219:10ORD - LHR
1 stop14h 50mScandinavian Airlines
Thu 9/115:35LHR - ORD
2 stops30h 15mScandinavian Airlines
Deal found 16/12£536
Sat 28/1220:55ORD - LHR
1 stop28h 00mBritish Airways
Fri 10/118:00LHR - ORD
1 stop22h 47mBritish Airways
Deal found 15/12£567
Fri 27/1220:20ORD - LHR
1 stop16h 35mTAP AIR PORTUGAL
Tue 29/419:50LHR - ORD
1 stop26h 20mTAP AIR PORTUGAL
Deal found 16/12£619
Sun 29/1218:25ORD - LHR
Nonstop7h 50mAmerican Airlines
Fri 10/108:40LHR - ORD
1 stop14h 12mAmerican Airlines
Deal found 16/12£664
Tue 17/1215:55ORD - LHR
1 stop11h 50mMultiple Airlines
Tue 24/1206:00LHR - ORD
1 stop16h 15mMultiple Airlines
Deal found 16/12£675
Thu 26/1208:42ORD - LHR
1 stop15h 13mJetBlue
Tue 14/108:25LHR - ORD
1 stop15h 34mJetBlue
Deal found 15/12£707
Wed 25/1212:30ORD - LHR
1 stop12h 20mDelta
Fri 17/108:40LHR - ORD
1 stop11h 50mDelta
Deal found 16/12£709
Tue 17/1213:59ORD - LHR
1 stop11h 16mVirgin Atlantic
Tue 24/1220:25LHR - ORD
1 stop24h 05mVirgin Atlantic
Deal found 16/12£715
Sat 28/1218:30ORD - LHR
1 stop10h 20mIcelandair
Wed 15/112:15LHR - ORD
1 stop11h 05mIcelandair
Deal found 16/12£728
Fri 27/1222:00ORD - LHR
Nonstop7h 40mFinnair
Tue 29/409:30LHR - ORD
1 stop13h 55mFinnair
Deal found 17/12£749

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

Customise 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 858,174 searches. Data last updated 17 December 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Mon 17/3

20:40-18:50

2 stops17h 10m

London Heathrow

Wed 26/3

21:05-18:50

2 stops26h 45m

£468

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Wed 26/2

18:30-10:50

1 stop10h 20m

London Heathrow

Wed 5/3

12:15-17:20

1 stop11h 05m

£469

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Wed 15/1

18:30-10:50

1 stop10h 20m

London Heathrow

Wed 22/1

15:15-12:29

2 stops51h 14m

£470

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Sun 12/1

17:05-09:30

1 stop10h 25m

London Heathrow

Tue 21/1

08:25-17:53

1 stop15h 28m

£471

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Sun 19/1

07:00-22:40

2 stops33h 40m

London Heathrow

Tue 21/1

18:30-15:30

1 stop27h 00m

£474

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Tue 11/2

18:35-08:15

Nonstop7h 40m

London Heathrow

Tue 18/2

07:00-14:30

1 stop13h 30m

£492

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Tue 22/4

20:30-10:20

Nonstop7h 50m

London Heathrow

Thu 8/5

07:30-17:25

1 stop15h 55m

£499

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Tue 4/2

17:00-06:50

Nonstop7h 50m

London Heathrow

Tue 11/2

15:45-18:45

Nonstop9h 00m

£507

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Sun 12/1

11:35-07:10

1 stop13h 35m

London Heathrow

Tue 21/1

06:30-16:41

2 stops16h 11m

£511

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Wed 8/1

14:05-06:30

1 stop10h 25m

London Heathrow

Tue 4/2

08:55-18:50

2 stops15h 55m

£518

Flights are sorted by cheapest return flights first.

Deals found on 16/12

Showing 1-10 of 27 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 return 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 return flight from O'Hare Intl to Heathrow. Price data was last updated on 13 December 2024.

The best time to book flights from Chicago O'Hare Intl Airport to London Heathrow Airport is 8 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 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 £112). Flying from Chicago O'Hare Intl Airport to London Heathrow Airport in July is currently the most expensive (average of £160). 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 17 December 2024.

Unlike at midday, when flights are generally more expensive, you can save up to 10% on flights from Chicago O'Hare Intl Airport to London Heathrow Airport by exploring options for tickets 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 17 December 2024.

The most flights from ORD to LHR are scheduled on a Monday (40 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (32 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 inches 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 17 December 2024.
See what other customers who have flown with JetBlue, Finnair and TAP AIR PORTUGAL from Chicago to London have to say. 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
8,615 reviews
Check prices

Comfort

7.9

Entertainment

7.9

Crew

8.6

Food

7.3

Overall

8.0

Boarding

8.2

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
8,615 reviews
Delta
8.0
Very Good
8,615 reviews
Check prices

Comfort

7.9

Entertainment

7.9

Crew

8.6

Food

7.3

Overall

8.0

Boarding

8.2

Reviews

1 / 10

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

Finnair
7.7
Good
1,287 reviews
Delta
8.0
Very Good
8,615 reviews
Check prices

Comfort

7.9

Entertainment

7.9

Crew

8.6

Food

7.3

Overall

8.0

Boarding

8.2

Reviews

1 / 10

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

SWISS
7.6
Good
1,607 reviews
Delta
8.0
Very Good
8,615 reviews
Check prices

Comfort

7.9

Entertainment

7.9

Crew

8.6

Food

7.3

Overall

8.0

Boarding

8.2

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
788 reviews
Delta
8.0
Very Good
8,615 reviews
Check prices

Comfort

7.9

Entertainment

7.9

Crew

8.6

Food

7.3

Overall

8.0

Boarding

8.2

Reviews

1 / 10

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

Air France
7.4
Good
1,505 reviews
Delta
8.0
Very Good
8,615 reviews
Check prices

Comfort

7.9

Entertainment

7.9

Crew

8.6

Food

7.3

Overall

8.0

Boarding

8.2

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 £468, 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 Icelandair and JetBlue - these airlines can fly you to your destination from £469 and £471, respectively. Scandinavian Airlines is currently priced 26% below the average price you’ll pay for this route.

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

    The cheapest airline one-way is WestJet, with whom users have recently found tickets for as low as £170. However, be on the lookout for offers from Icelandair and JetBlue, as they are both options that can get you from Chicago O'Hare Intl Airport to London Heathrow Airport for a low price.

  • 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%).

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

    The cheapest flight price from Chicago O'Hare Intl Airport to London Heathrow Airport is £294. On average you can expect to pay £3,261. The most popular route, (Chicago O'Hare Intl - London Heathrow), can usually be booked for £378.

  • 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 holiday 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 £112). Flying from Chicago O'Hare Intl Airport to London Heathrow Airport in July is currently the most expensive (average of £160). 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 Heathrow

See prices for flight routes from nearby airports that may be better suited for you.
O'Hare Intl to Gatwick flights
O'Hare Intl to London City flights
Midway to Heathrow flights
O'Hare Intl to Stansted flights
O'Hare Intl to Luton flights

Top 8 airlines flying from O'Hare Intl to Heathrow

Discover the top 8 airlines that operate flights from O'Hare Intl to Heathrow. 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 858,174 searches. Data last updated 17 December 2024.
AirlineCheapestAverageFlexibilityOn-time
LufthansaCheapest£321Average£786FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
Scandinavian AirlinesCheapest£344Average£404FlexibilityNo cancel feeOn-time77%
Search Scandinavian Airlines flights
FinnairCheapest£377Average£717FlexibilityNo cancel feeOn-time76%
Search Finnair flights
American AirlinesCheapest£405Average£793FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
Aer LingusCheapest£469Average£679FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
British AirwaysCheapest£493Average£679FlexibilityNo cancel feeOn-time70%
Search British Airways flights
IberiaCheapest£520Average£685FlexibilityNo cancel feeOn-time77%
Search Iberia flights
United AirlinesCheapest£534Average£697FlexibilityNo cancel feeOn-time69%
Search United Airlines flights

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

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Users can book flights with no change fees policies with our dedicated filters. Book flights from O'Hare Intl to Heathrow flexibly with Cheapflights today.

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