What’s the cheapest stopover airport for flights from London Heathrow Airport to Chicago O'Hare Intl Airport?

Frankfurt am Main (FRA) is the most affordable one-stop option, with an average return flight price of £367.

What’s the fastest stopover option from London Heathrow Airport to Chicago O'Hare Intl Airport?

Flights via Dublin (DUB) have the shortest average one-way travel time for one-stop routes: 11h 48m.

Which airport typically offers the quickest stopover for flights from London Heathrow Airport to Chicago O'Hare Intl Airport?

Flights via Atlanta (ATL) offer the fastest connection on this route, with an average stopover time of 1h 31m.

What’s the top stopover airport for flights from London Heathrow Airport to Chicago O'Hare Intl Airport?

Dublin (DUB) – chosen by Cheapflights users on 31% of one-stop itineraries from London Heathrow Airport to Chicago O'Hare Intl Airport on Cheapflights.

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

Our cheapest airline available from London Heathrow Airport to Chicago O'Hare Intl Airport is Icelandair. Our recent data shows that you can find tickets from as low as £338 on this airline. Additional options worth looking into are Scandinavian Airlines and TAP AIR PORTUGAL, starting at £350 and £364 round-trip. Users have found that Icelandair is 36% cheaper than the other options available to this destination.

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

£405 is the cheapest one-way deal found within the past few days, from Virgin Atlantic. You may also be able to find cheap deals on Delta and Aer Lingus, with prices starting from £405 and £408, respectively.

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

The most flights from LHR to ORD are scheduled on a Tuesday (53 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (42 on average).

In terms of precipitation, rainfall in Chicago O'Hare Intl Airport ranges from 43.0 - 125.0 inches per month. August is typically the wettest month, when rainfall can reach 125.0 mm. January is typically the driest time to visit Chicago O'Hare Intl Airport when rainfall is around 43.0 mm.

If weather is an important factor for your trip to Chicago O'Hare Intl 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 23.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around -5.0 C).

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

While on average a flight from London Heathrow Airport to Chicago O'Hare Intl Airport is generally £802, our data shows the cheapest flight currently is £410. When looking at the most popular route, (London Heathrow - Chicago O'Hare Intl), you can expect to pay £328 for that flight.

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

The top 3 most reliable airlines when flying from London Heathrow Airport to Chicago O'Hare Intl Airport are Malaysia Airlines (79%), Air Canada (76%) and Austrian Airlines (76%).

What are the most popular airlines that fly from London Heathrow Airport to Chicago O'Hare Intl Airport?

The most popular airlines flying from London Heathrow Airport to Chicago O'Hare Intl Airport are American Airlines, Air Canada and Finnair. Something to consider prior to booking your flight.

Can I find deals for flights from Heathrow to O'Hare Intl that include hotel bookings?

Yes. In addition to deals on Heathrow to O'Hare Intl flights, Cheapflights offers holiday packages that include both flights and hotel.

How can I find direct flights from Heathrow to O'Hare Intl?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Heathrow to O'Hare Intl.

Can I find deals for business class flights from Heathrow to O'Hare Intl?

Yes. Cheapflights offers flight deals from Heathrow to O'Hare Intl by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

£393+ Cheap Flights from London Heathrow Airport to Chicago O'Hare Intl Airport

Q: How much does it cost for a return flight from London Heathrow Airport to Chicago O'Hare Intl Airport?

Airfare is below average for this route at the moment. London Heathrow Airport to Chicago O'Hare Intl Airport flights typically cost between £410 and £524 in October. The cheapest return flight price found within the last 3 days was £394 on American Airlines (2 Oct-6 Oct).

Cheapflights Tip: The best prices from London Heathrow to Chicago O'Hare Intl are usually found in February or September, booked 85 days in advance, depart on a Wednesday or Tuesday and return on a Thursday

Cheap flight deals from Heathrow to O'Hare Intl

Round-trip from	£394
Popular in	July
Cheapest in	February
Average price	£438
Good round-trip deal	£494 or less
Good one-way deal	£491 or less

American Airlines
2/10-6/10
2 total stops
24h 19m total
London to Chicago

Search Deals

Highest demand for flights based on searches. 13% potential increase in price (£60 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 2% potential price decrease (£11 potential savings vs. average return price).

Search Deals

Average for round-trip flights in September 2025

Search Deals

Price to beat on a round-trip flight from London Heathrow to Chicago O'Hare Intl.

Search Deals

Price to beat on a one-way flight from London Heathrow to Chicago O'Hare Intl.

Search Deals

Find flight deals from Heathrow to O'Hare Intl

Cheapest flights from Heathrow to O'Hare Intl
Explore the most affordable flight options available from Heathrow to O'Hare Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 16 September 2025.

Thu 25/906:50LHR - ORD

1 stop11h 15mUnited Airlines

Mon 29/916:00ORD - LHR

Nonstop8h 20mUnited Airlines

Deal found 16/9£394

Fri 3/1007:40LHR - ORD

1 stop14h 05mAmerican Airlines

Mon 6/1013:43ORD - LHR

1 stop10h 47mAmerican Airlines

Deal found 14/9£394

Fri 26/906:00LHR - ORD

1 stop13h 20mAustrian Airlines

Mon 6/1012:55ORD - LHR

1 stop12h 00mAustrian Airlines

Deal found 16/9£395

Mon 8/1219:50LHR - ORD

2 stops50h 55mScandinavian Airlines

Thu 8/119:20ORD - LHR

1 stop14h 40mScandinavian Airlines

Deal found 14/9£396

Wed 1/1007:45LHR - ORD

2 stops14h 50mUnited Airlines

Wed 22/1018:00ORD - LHR

Nonstop8h 20mUnited Airlines

Deal found 15/9£397

Fri 26/907:45LHR - ORD

2 stops14h 50mUnited Airlines

Mon 6/1015:35ORD - LHR

1 stop12h 00mUnited Airlines

Deal found 16/9£397

Sun 14/1212:15LHR - ORD

1 stop11h 05mIcelandair

Thu 15/118:30ORD - LHR

1 stop19h 00mIcelandair

Deal found 15/9£398

Fri 7/1112:35LHR - ORD

Nonstop8h 50mBritish Airways

Mon 10/1121:45ORD - LHR

Nonstop7h 50mBritish Airways

Deal found 14/9£399

Tue 23/914:10LHR - ORD

Nonstop8h 35mBrussels Airlines

Tue 30/916:00ORD - LHR

Nonstop8h 20mBrussels Airlines

Deal found 15/9£400

Thu 6/1114:10LHR - ORD

Nonstop8h 50mBritish Airways

Sun 9/1117:10ORD - LHR

Nonstop7h 45mBritish Airways

Deal found 16/9£400

Sat 27/908:30LHR - ORD

Nonstop9h 00mMultiple Airlines

Sun 5/1019:05ORD - LHR

1 stop20h 40mMultiple Airlines

Deal found 15/9£401

Thu 30/1006:40LHR - ORD

1 stop17h 05mScandinavian Airlines

Sun 2/1119:20ORD - LHR

2 stops17h 30mScandinavian Airlines

Deal found 16/9£402

Best flights from Heathrow to O'Hare Intl
Discover carefully curated flight deals from Heathrow to O'Hare Intl that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 16 September 2025.

Sat 4/1009:30LHR - ORD

2 stops19h 45mUnited Airlines

Tue 7/1011:45ORD - LHR

1 stop12h 10mUnited Airlines

Deal found 14/9£396

Mon 15/1212:15LHR - ORD

1 stop11h 05mIcelandair

Thu 15/118:30ORD - LHR

1 stop19h 00mIcelandair

Deal found 15/9£398

Thu 11/1206:40LHR - ORD

1 stop16h 05mScandinavian Airlines

Fri 9/119:20ORD - LHR

2 stops37h 15mScandinavian Airlines

Deal found 14/9£411

Tue 30/907:45LHR - ORD

2 stops14h 50mUnited Airlines

Tue 7/1016:00ORD - LHR

1 stop11h 20mUnited Airlines

Deal found 15/9£397

Sun 14/1212:15LHR - ORD

1 stop11h 05mIcelandair

Wed 7/118:30ORD - LHR

1 stop19h 00mIcelandair

Deal found 14/9£398

Thu 9/1007:45LHR - ORD

2 stops14h 50mUnited Airlines

Sun 12/1010:40ORD - LHR

1 stop13h 50mUnited Airlines

Deal found 14/9£397

Tue 9/1212:15LHR - ORD

1 stop11h 05mIcelandair

Wed 7/118:30ORD - LHR

1 stop10h 20mIcelandair

Deal found 14/9£398

Sat 13/1220:35LHR - ORD

1 stop26h 45mIcelandair

Thu 8/118:30ORD - LHR

1 stop19h 00mIcelandair

Deal found 14/9£400

Mon 6/1014:10LHR - ORD

Nonstop9h 10mUnited Airlines

Tue 14/1008:40ORD - LHR

1 stop18h 55mUnited Airlines

Deal found 14/9£413

Sat 27/908:30LHR - ORD

Nonstop9h 00mUnited Airlines

Mon 6/1010:40ORD - LHR

1 stop16h 55mUnited Airlines

Deal found 16/9£414

Thu 4/1207:40LHR - ORD

Nonstop9h 20mUnited Airlines

Tue 13/117:50ORD - LHR

Nonstop8h 05mUnited Airlines

Deal found 16/9£414

Thu 5/210:25LHR - ORD

Nonstop9h 20mUnited Airlines

Sun 22/217:50ORD - LHR

Nonstop8h 05mUnited Airlines

Deal found 15/9£414

Direct flights from Heathrow to O'Hare Intl
Explore direct flight options from Heathrow to O'Hare Intl based on user searches, and compare prices and availability for your desired travel dates. Data last updated 16 September 2025.

Wed 29/1010:25LHR - ORD

Nonstop9h 20mLufthansa

Wed 5/1117:50ORD - LHR

Nonstop8h 05mLufthansa

Deal found 14/9£396

Fri 3/1012:15LHR - ORD

Nonstop8h 35mBritish Airways

Mon 6/1020:40ORD - LHR

Nonstop7h 50mBritish Airways

Deal found 14/9£398

Fri 7/1112:35LHR - ORD

Nonstop8h 50mBritish Airways

Mon 10/1121:45ORD - LHR

Nonstop7h 50mBritish Airways

Deal found 14/9£399

Sat 1/1112:35LHR - ORD

Nonstop8h 40mBritish Airways

Fri 14/1117:10ORD - LHR

Nonstop7h 45mBritish Airways

Deal found 15/9£400

Thu 6/1114:10LHR - ORD

Nonstop8h 50mBritish Airways

Sun 9/1117:10ORD - LHR

Nonstop7h 45mBritish Airways

Deal found 16/9£400

Fri 28/1107:40LHR - ORD

Nonstop9h 20mMultiple Airlines

Thu 4/1217:50ORD - LHR

Nonstop8h 05mMultiple Airlines

Deal found 15/9£407

Thu 30/1007:40LHR - ORD

Nonstop9h 20mUnited Airlines

Thu 6/1115:45ORD - LHR

Nonstop8h 10mUnited Airlines

Deal found 15/9£408

Tue 28/1010:25LHR - ORD

Nonstop9h 20mLufthansa

Tue 4/1115:45ORD - LHR

Nonstop8h 10mLufthansa

Deal found 16/9£408

Wed 19/1112:35LHR - ORD

Nonstop8h 50mBritish Airways

Wed 26/1117:10ORD - LHR

Nonstop7h 45mBritish Airways

Deal found 14/9£409

Wed 3/1214:10LHR - ORD

Nonstop8h 50mBritish Airways

Wed 14/120:45ORD - LHR

Nonstop7h 40mBritish Airways

Deal found 16/9£410

Wed 5/1107:40LHR - ORD

Nonstop9h 20mUnited Airlines

Sun 16/1117:50ORD - LHR

Nonstop8h 05mUnited Airlines

Deal found 15/9£413

Fri 6/210:25LHR - ORD

Nonstop9h 20mUnited Airlines

Fri 20/215:45ORD - LHR

Nonstop8h 10mUnited Airlines

Deal found 15/9£414

Last-minute flights from Heathrow to O'Hare Intl
Discover last-minute flight deals from Heathrow to O'Hare Intl. Data last updated 16 September 2025 and is based on user searches.

Tue 23/914:10LHR - ORD

Nonstop8h 35mBrussels Airlines

Tue 30/916:00ORD - LHR

Nonstop8h 20mBrussels Airlines

Deal found 15/9£400

Tue 23/912:15LHR - ORD

Nonstop8h 35mBritish Airways

Sun 5/1017:40ORD - LHR

Nonstop7h 40mBritish Airways

Deal found 16/9£400

Thu 25/907:30LHR - ORD

1 stop13h 25mUnited Airlines

Sat 11/1016:00ORD - LHR

Nonstop8h 20mUnited Airlines

Deal found 16/9£393

Thu 25/906:50LHR - ORD

1 stop11h 15mUnited Airlines

Mon 29/914:39ORD - LHR

1 stop10h 16mUnited Airlines

Deal found 16/9£394

Fri 26/906:00LHR - ORD

1 stop13h 20mAustrian Airlines

Mon 6/1012:55ORD - LHR

1 stop12h 00mAustrian Airlines

Deal found 16/9£395

Sat 27/908:30LHR - ORD

Nonstop9h 00mMultiple Airlines

Sun 5/1019:05ORD - LHR

1 stop20h 40mMultiple Airlines

Deal found 15/9£401

Tue 30/907:45LHR - ORD

2 stops14h 50mUnited Airlines

Sun 5/1016:00ORD - LHR

Nonstop8h 20mUnited Airlines

Deal found 16/9£397

Wed 1/1007:45LHR - ORD

2 stops14h 50mUnited Airlines

Wed 22/1018:00ORD - LHR

Nonstop8h 20mUnited Airlines

Deal found 15/9£397

Thu 2/1008:20LHR - ORD

1 stop13h 25mAmerican Airlines

Sun 5/1018:08ORD - LHR

1 stop10h 42mAmerican Airlines

Deal found 14/9£394

Fri 3/1012:15LHR - ORD

Nonstop8h 35mBritish Airways

Mon 6/1020:40ORD - LHR

Nonstop7h 50mBritish Airways

Deal found 14/9£398

Sat 4/1009:30LHR - ORD

2 stops19h 45mUnited Airlines

Tue 7/1018:00ORD - LHR

Nonstop8h 20mUnited Airlines

Deal found 14/9£396

Thu 30/1006:40LHR - ORD

1 stop17h 05mScandinavian Airlines

Sun 2/1119:20ORD - LHR

1 stop16h 20mScandinavian Airlines

Deal found 14/9£399

One-way flights from Heathrow to O'Hare Intl
Search for one-way flight options from Heathrow to O'Hare Intl. Find affordable one-way fares based on user searches. Data last updated 16 September 2025.

Thu 25/921:25LHR - ORD

3 stops56h 33mMultiple Airlines

Deal found 15/9£398

Sat 14/320:45LHR - ORD

2 stops24h 00mMultiple Airlines

Deal found 16/9£399

Tue 7/1013:25LHR - ORD

2 stops29h 20mMultiple Airlines

Deal found 15/9£400

Tue 30/918:45LHR - ORD

1 stop27h 25mTAP AIR PORTUGAL

Deal found 16/9£403

Sun 21/915:05LHR - ORD

3 stops31h 35mMultiple Airlines

Deal found 14/9£404

Tue 16/1214:10LHR - ORD

Nonstop8h 50mFinnair

Deal found 16/9£405

Fri 3/1006:00LHR - ORD

1 stop16h 30mTAP AIR PORTUGAL

Deal found 14/9£405

Fri 26/914:10LHR - ORD

Nonstop9h 10mAustrian Airlines

Deal found 14/9£407

Sun 30/1121:00LHR - ORD

2 stops23h 00mBritish Airways

Deal found 14/9£408

Thu 16/1020:50LHR - ORD

2 stops25h 20mMultiple Airlines

Deal found 16/9£408

Fri 12/1212:10LHR - ORD

1 stop11h 45mAer Lingus

Deal found 14/9£409

Cheapflights Fare Finder

Use the filters below to find and compare flights from London Heathrow Airport to Chicago O'Hare Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

LondonChicago

LHR - ORD

LHRORD

London Heathrow

Sat 4/10

09:30-23:15

2 stops19h 45m

Chicago O'Hare Intl

Tue 7/10

11:45-05:55

1 stop12h 10m

£396

LondonChicago

LHR - ORD

LHRORD

London Heathrow

Tue 30/9

07:45-16:35

2 stops14h 50m

Chicago O'Hare Intl

Tue 7/10

16:00-09:20

1 stop11h 20m

£397

LondonChicago

LHR - ORD

LHRORD

London Heathrow

Thu 9/10

07:45-16:35

2 stops14h 50m

Chicago O'Hare Intl

Sun 12/10

10:40-06:30

1 stop13h 50m

£397

LondonChicago

LHR - ORD

LHRORD

London Heathrow

Mon 15/12

12:15-17:20

1 stop11h 05m

Chicago O'Hare Intl

Thu 15/1

18:30-19:30

1 stop19h 00m

£398

LondonChicago

LHR - ORD

LHRORD

London Heathrow

Sun 14/12

12:15-17:20

1 stop11h 05m

Chicago O'Hare Intl

Wed 7/1

18:30-19:30

1 stop19h 00m

£398

LondonChicago

LHR - ORD

LHRORD

London Heathrow

Tue 9/12

12:15-17:20

1 stop11h 05m

Chicago O'Hare Intl

Wed 7/1

18:30-10:50

1 stop10h 20m

£398

LondonChicago

LHR - ORD

LHRORD

London Heathrow

Sat 13/12

20:35-17:20

1 stop26h 45m

Chicago O'Hare Intl

Thu 8/1

18:30-19:30

1 stop19h 00m

£400

LondonChicago

LHR - ORD

LHRORD

London Heathrow

Thu 11/12

06:40-16:45

1 stop16h 05m

Chicago O'Hare Intl

Fri 9/1

19:20-14:35

2 stops37h 15m

£411

LondonChicago

LHR - ORD

LHRORD

London Heathrow

Mon 6/10

14:10-17:20

Nonstop9h 10m

Chicago O'Hare Intl

Tue 14/10

08:40-09:35

1 stop18h 55m

£413

LondonChicago

LHR - ORD

LHRORD

London Heathrow

Sat 27/9

08:30-11:30

Nonstop9h 00m

Chicago O'Hare Intl

Mon 6/10

10:40-09:35

1 stop16h 55m

£414

Flights are sorted by cheapest return flights first.

Deals found on 15/9

Showing 1-10 of 23 results

Best time to book a flight from Heathrow to O'Hare Intl

Have a flexible travel schedule? Discover the best time to fly to O'Hare Intl from Heathrow 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.

Cheapflights Insights

Everything you need to know about your flight from London Heathrow Airport to Chicago O'Hare Intl Airport

Prices

Airlines

How far ahead should I book a flight from London Heathrow Airport to Chicago O'Hare Intl Airport?

The best time to book flights from London Heathrow Airport to Chicago O'Hare Intl Airport is 85 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 London Heathrow Airport to Chicago O'Hare Intl Airport?

Currently, January is the cheapest month in which you can book a flight from London Heathrow Airport to Chicago O'Hare Intl Airport (average of £595). Flying from London Heathrow Airport to Chicago O'Hare Intl Airport in July is currently the most expensive (average of £843). 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 LHR to ORD?

It’s typically best to fly out from London Heathrow Airport to Chicago O'Hare Intl Airport in the evening. Doing so could potentially save you 15% on the flight price compared to flying in the afternoon, which is usually more expensive.

What is the cheapest day to fly from London Heathrow Airport to Chicago O'Hare Intl Airport?

Travellers seeking maximum savings on their London Heathrow Airport to Chicago O'Hare Intl Airport flight should consider departing on Monday evenings when fares are most often at their lowest. Sunday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

How much does it cost for a return flight from London Heathrow Airport to Chicago O'Hare Intl Airport?

Reviews of airlines servicing O'Hare Intl

Check out reviews from past customers who have flown with Finnair, Aer Lingus, andIcelandair from London Heathrow Airport to Chicago O'Hare Intl Airport to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Finnair

7.6

Good

1,324 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Anonymous,May 2025

FRA - DFW

I was lucky I had a seet without no one next to me My vegetarian meal was excellent. The service very good. Although there was a lot of turbulences during the flight, the landing was very soft and took away all our apprehension.

Finnair

7.6

Good

1,324 reviews

Finnair

7.6

Good

1,324 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Anonymous,May 2025

FRA - DFW

Aer Lingus

7.2

Good

1,274 reviews

Finnair

7.6

Good

1,324 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Anonymous,May 2025

FRA - DFW

Icelandair

7.0

Good

544 reviews

Finnair

7.6

Good

1,324 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Anonymous,May 2025

FRA - DFW

Lufthansa

6.8

Okay

7,407 reviews

Finnair

7.6

Good

1,324 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Anonymous,May 2025

FRA - DFW

British Airways

6.7

Okay

7,363 reviews

Finnair

7.6

Good

1,324 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Anonymous,May 2025

FRA - DFW

Related info for your journey

How long is the flight from London Heathrow Airport to Chicago O'Hare Intl Airport?
Airlines like United Airlines and Icelandair fly from London Heathrow Airport to Chicago O'Hare Intl Airport in about 11h 05m. The time it takes to get you to your destination can typically vary by up to 8h 40m. The distance from London Heathrow Airport to Chicago O'Hare Intl Airport is about 3939 mi. This flight may include one or multiple stops.
What are the cheapest airlines flying from London Heathrow Airport to Chicago O'Hare Intl Airport round-trip?
Our cheapest airline available from London Heathrow Airport to Chicago O'Hare Intl Airport is Icelandair. Our recent data shows that you can find tickets from as low as £338 on this airline. Additional options worth looking into are Scandinavian Airlines and TAP AIR PORTUGAL, starting at £350 and £364 round-trip. Users have found that Icelandair is 36% cheaper than the other options available to this destination.
What are the cheapest airlines to fly from London Heathrow Airport to Chicago O'Hare Intl Airport one-way?
£405 is the cheapest one-way deal found within the past few days, from Virgin Atlantic. You may also be able to find cheap deals on Delta and Aer Lingus, with prices starting from £405 and £408, respectively.
What are the most reliable airlines from London Heathrow Airport to Chicago O'Hare Intl Airport?
The top 3 most reliable airlines when flying from London Heathrow Airport to Chicago O'Hare Intl Airport are Malaysia Airlines (79%), Air Canada (76%) and Austrian Airlines (76%).
What are the cheapest flights from London Heathrow Airport to Chicago O'Hare Intl Airport?
While on average a flight from London Heathrow Airport to Chicago O'Hare Intl Airport is generally £802, our data shows the cheapest flight currently is £410. When looking at the most popular route, (London Heathrow - Chicago O'Hare Intl), you can expect to pay £328 for that flight.
Can I find deals for flights from Heathrow to O'Hare Intl that include hotel bookings?
Yes. In addition to deals on Heathrow to O'Hare Intl flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Heathrow to O'Hare Intl?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Heathrow to O'Hare Intl.
Can I find deals for business class flights from Heathrow to O'Hare Intl?
Yes. Cheapflights offers flight deals from Heathrow to O'Hare Intl 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 London Heathrow Airport to Chicago O'Hare Intl Airport?
Currently, January is the cheapest month in which you can book a flight from London Heathrow Airport to Chicago O'Hare Intl Airport (average of £595). Flying from London Heathrow Airport to Chicago O'Hare Intl Airport in July is currently the most expensive (average of £843). 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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Fly from Heathrow to O'Hare Intl on these airlines

British Airways flights from London Heathrow to Chicago O'Hare Intl

Finnair flights from London Heathrow to Chicago O'Hare Intl

Iberia flights from London Heathrow to Chicago O'Hare Intl

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Chicago O'Hare Intl Airport to New York John F Kennedy Intl Airport flights

Top 10 airlines flying from Heathrow to O'Hare Intl

Airline	Cheapest	Average	Flexibility	On-time
Icelandair	Cheapest£338	Average£449	FlexibilityNo cancel fee	On-time76%	Search Icelandair flights
Scandinavian Airlines	Cheapest£350	Average£478	FlexibilityNo cancel fee	On-time77%	Search Scandinavian Airlines flights
TAP AIR PORTUGAL	Cheapest£364	Average£608	FlexibilityNo cancel fee	On-timeN/A	Search TAP AIR PORTUGAL flights
Aer Lingus	Cheapest£364	Average£568	FlexibilityNo cancel fee	On-timeN/A	Search Aer Lingus flights
Virgin Atlantic	Cheapest£376	Average£476	FlexibilityNo cancel fee	On-time72%	Search Virgin Atlantic flights
Brussels Airlines	Cheapest£389	Average£546	FlexibilityNo cancel fee	On-timeN/A	Search Brussels Airlines flights
Lufthansa	Cheapest£391	Average£570	FlexibilityNo cancel fee	On-time76%	Search Lufthansa flights
Austrian Airlines	Cheapest£397	Average£566	FlexibilityNo cancel fee	On-time78%	Search Austrian Airlines flights
British Airways	Cheapest£400	Average£555	FlexibilityNo cancel fee	On-time70%	Search British Airways flights
United Airlines	Cheapest£404	Average£537	FlexibilityNo cancel fee	On-time69%	Search United Airlines flights

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Cheap flights from London Heathrow Airport to Chicago O'Hare Intl Airport from £393

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 25/9. Fares are subject to change and may not be available on all flights or dates of travel.

Cheapflights Tip: The best prices from London Heathrow to Chicago O'Hare Intl are usually found in February or September, booked 85 days in advance, depart on a Wednesday or Tuesday and return on a Thursday

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Cheapest flights from Heathrow to O'Hare IntlExplore the most affordable flight options available from Heathrow to O'Hare Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 16 September 2025.

Explore the most affordable flight options available from Heathrow to O'Hare Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 16 September 2025.

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Everything you need to know about your flight from London Heathrow Airport to Chicago O'Hare Intl Airport

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

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What’s the fastest stopover option from London Heathrow Airport to Chicago O'Hare Intl Airport?

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Reviews of airlines servicing O'Hare Intl

Related info for your journey

Find useful and relevant information for your journey from Heathrow to O'Hare Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

How long is the flight from London Heathrow Airport to Chicago O'Hare Intl Airport?

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

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

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Fly from Heathrow to O'Hare Intl on these airlines

Choose from the following airlines for your flight from Heathrow to O'Hare Intl. Flights are based on user searches made on Cheapflights and were last updated on 16 September 2025.

Top 10 airlines flying from Heathrow to O'Hare Intl

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

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

Can Cheapflights notify me if prices for flights from Heathrow to O'Hare Intl become cheaper?

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Cheapest flights from Heathrow to O'Hare Intl
Explore the most affordable flight options available from Heathrow to O'Hare Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 16 September 2025.