Which layover airport has the shortest connection time from London Heathrow Airport to Chicago O'Hare Intl Airport?

Dublin (DUB) has the shortest average layover time for this route: 1h 30m.

Which layover airport offers the lowest fares from London Heathrow Airport to Chicago O'Hare Intl Airport?

Flights via Newark (EWR) offer the lowest average round-trip price of $688.

How often are flights from London to Chicago delayed?

Historically, on average around 11% of flights between London and Chicago have experienced a delay on any given week. The average delay length over the past 12 months has been 170 minutes.

Which airline has the best punctuality record on London to Chicago flights?

According to our data, United Airlines have had the least number of delays on this route over the last 12 months; with about 5% of their flights experiencing any sort of delay.

What is the cheapest airline that flies from London Heathrow to Chicago O'Hare Intl?

Icelandair and United Airlines are the most popular carriers operating from London Heathrow to Chicago O'Hare Intl

What airlines fly to Chicago O'Hare Intl Airport?

British Airways, American Airlines and Aer Lingus are the top three most popular airlines that fly to Chicago O'Hare Intl Airport from London Heathrow Airport according to our data. British Airways is the first choice among our users, with 54% of people opting to fly with this airline when traveling to Chicago O'Hare Intl Airport. Keep in mind that there are 10 different airlines that fly to Chicago O'Hare Intl Airport on a routine basis, so you have a few additional options to choose from.

What is the most punctual flight time for London to Chicago flights?

Generally, flights departing at night tend to experience fewer delays. Flights in the evening have, in the past, seen delays more frequently in comparison.

Which layover airport has the shortest travel time from London Heathrow Airport to Chicago O'Hare Intl Airport?

Flights connecting via Dublin (DUB) have the shortest average one-way travel time: 11h 27m.

Which airport is the most popular layover for flights between London Heathrow Airport and Chicago O'Hare Intl Airport?

Dublin (DUB) was the most common stop: 86% of momondo users choosing 1-stop flights on this route connected there.

What day of the week experiences the fewest flight delays on this route?

Saturday is statistically the day of the week which experiences the fewest number of delays on this flight route. Friday has historically seen more delays on average compared to the rest of the week.

How many operators does momondo search for flights from London Heathrow Airport to Chicago O'Hare Intl Airport?

As of January 2026, there are 10 operators available to choose from for flights from London Heathrow Airport to Chicago O'Hare Intl Airport.

How old do you have to be to fly from London Heathrow Airport to Chicago O'Hare Intl Airport?

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from London Heathrow Airport to Chicago O'Hare Intl Airport.

What documentation or ID do you need to fly to Chicago O'Hare Intl Airport?

The required travel and health documents for your Chicago O'Hare Intl Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Chicago O'Hare Intl Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$432 Cheap Flights from London Heathrow Airport to Chicago O'Hare Intl Airport in 2026

Q: How many flights depart from London Heathrow Airport to Chicago O'Hare Intl Airport on average per week?

As of January 2026, 248 flights take off from London Heathrow Airport and land in Chicago O'Hare Intl Airport each week. The most common flight departure day for this route is Wed, with 17% of weekly flights taking off on this day.

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Enter your travel dates to find the best prices.

12:15 pm - 5:20 pm

LHR

ORD

11h 05m

1 stop

6:30 pm - 10:50 am

ORD

LHR

10h 20m

1 stop

$528Icelandair

Thu, Feb 19 - Mon, Feb 23

7:30 pm - 4:45 pm

LHR

ORD

27h 15m

1 stop

7:20 pm - 6:50 pm

ORD

LHR

17h 30m

2 stops

$529Scandinavian Airlines

Wed, Feb 18 - Mon, Mar 2

8:35 pm - 6:20 pm

LHR

ORD

26h 45m

1 stop

7:25 pm - 8:20 pm

ORD

LHR

18h 55m

1 stop

$530Icelandair

Sun, Mar 8 - Sun, Apr 26

6:00 am - 3:00 pm

LHR

ORD

14h 00m

1 stop

2:30 pm - 10:50 am

ORD

LHR

15h 20m

1 stop

$531Austrian Airlines

Fri, Mar 13 - Fri, Mar 20

10:20 am - 4:45 pm

LHR

ORD

12h 25m

1 stop

7:20 pm - 4:00 pm

ORD

LHR

14h 40m

1 stop

$532Scandinavian Airlines

Thu, Feb 26 - Mon, Mar 2

8:35 pm - 6:20 pm

LHR

ORD

26h 45m

1 stop

7:30 pm - 10:50 am

ORD

LHR

10h 20m

1 stop

$534Icelandair

Tue, Mar 10 - Tue, Mar 17

8:05 pm - 12:45 pm

LHR

ORD

22h 40m

1 stop

3:45 pm - 5:55 am

ORD

LHR

8h 10mnonstop

$535Multiple Airlines

Wed, Feb 18 - Tue, Feb 24

12:15 pm - 6:20 pm

LHR

ORD

11h 05m

1 stop

7:25 pm - 11:55 am

ORD

LHR

10h 30m

1 stop

$536Icelandair

Mon, Mar 9 - Fri, May 1

8:35 pm - 6:20 pm

LHR

ORD

26h 45m

1 stop

7:25 pm - 8:20 pm

ORD

LHR

18h 55m

1 stop

$538Icelandair

Sun, Mar 8 - Sat, May 2

11:10 am - 6:25 pm

LHR

ORD

13h 15m

1 stop

3:45 pm - 5:55 am

ORD

LHR

8h 10mnonstop

$539Lufthansa

Tue, Feb 24 - Tue, Mar 3

Icelandair flights from London Heathrow Airport to Chicago O'Hare Intl Airport

Our best Icelandair deals on London Heathrow Airport to Chicago O'Hare Intl Airport flight tickets

Icelandair

Feb 19

LHR12:15 pmLondon Heathrow

11h 05m

1 stop

ORD5:20 pmChicago O'Hare Intl

Feb 23

ORD6:30 pmChicago O'Hare Intl

10h 20m

1 stop

LHR10:50 amLondon Heathrow

$528

Icelandair

Mar 8

LHR8:35 pmLondon Heathrow

26h 45m

1 stop

ORD6:20 pmChicago O'Hare Intl

Apr 28

ORD7:25 pmChicago O'Hare Intl

18h 55m

1 stop

LHR8:20 pmLondon Heathrow

$530

Icelandair

Mar 10

LHR8:35 pmLondon Heathrow

26h 45m

1 stop

ORD6:20 pmChicago O'Hare Intl

Mar 17

ORD7:30 pmChicago O'Hare Intl

10h 20m

1 stop

LHR10:50 amLondon Heathrow

$534

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

Our best British Airways deals on London Heathrow Airport to Chicago O'Hare Intl Airport flight tickets

British Airways

Apr 15

LHR7:40 amLondon Heathrow

12h 20m

1 stop

ORD2:00 pmChicago O'Hare Intl

Apr 26

ORD3:31 pmChicago O'Hare Intl

10h 19m

1 stop

LHR7:50 amLondon Heathrow

$540

British Airways

Apr 17

LHR7:40 amLondon Heathrow

12h 20m

1 stop

ORD2:00 pmChicago O'Hare Intl

Apr 25

ORD9:15 pmChicago O'Hare Intl

8h 00m

LHR11:15 amLondon Heathrow

$541

British Airways

Mar 8

LHR8:50 amLondon Heathrow

11h 10m

1 stop

ORD3:00 pmChicago O'Hare Intl

Mar 18

ORD6:00 pmChicago O'Hare Intl

10h 40m

1 stop

LHR9:40 amLondon Heathrow

$547

momondo 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

Thu 2/19

12:15 pm-5:20 pm

1 stop11h 05m

Chicago O'Hare Intl

Mon 2/23

6:30 pm-10:50 am

1 stop10h 20m

$528

LondonChicago

LHR - ORD

LHRORD

London Heathrow

Wed 2/18

7:30 pm-4:45 pm

1 stop27h 15m

Chicago O'Hare Intl

Mon 3/2

7:20 pm-6:50 pm

2 stops17h 30m

$529

LondonChicago

LHR - ORD

LHRORD

London Heathrow

Sun 3/8

8:35 pm-6:20 pm

1 stop26h 45m

Chicago O'Hare Intl

Sun 4/26

7:25 pm-8:20 pm

1 stop18h 55m

$530

LondonChicago

LHR - ORD

LHRORD

London Heathrow

Fri 3/13

6:00 am-3:00 pm

1 stop14h 00m

Chicago O'Hare Intl

Fri 3/20

2:30 pm-10:50 am

1 stop15h 20m

$531

LondonChicago

LHR - ORD

LHRORD

London Heathrow

Thu 2/26

10:20 am-4:45 pm

1 stop12h 25m

Chicago O'Hare Intl

Mon 3/2

7:20 pm-4:00 pm

1 stop14h 40m

$532

LondonChicago

LHR - ORD

LHRORD

London Heathrow

Tue 3/10

8:35 pm-6:20 pm

1 stop26h 45m

Chicago O'Hare Intl

Tue 3/17

7:30 pm-10:50 am

1 stop10h 20m

$534

LondonChicago

LHR - ORD

LHRORD

London Heathrow

Wed 2/18

8:05 pm-12:45 pm

1 stop22h 40m

Chicago O'Hare Intl

Tue 2/24

3:45 pm-5:55 am

Nonstop8h 10m

$535

LondonChicago

LHR - ORD

LHRORD

London Heathrow

Mon 3/9

12:15 pm-6:20 pm

1 stop11h 05m

Chicago O'Hare Intl

Fri 5/1

7:25 pm-11:55 am

1 stop10h 30m

$536

LondonChicago

LHR - ORD

LHRORD

London Heathrow

Sun 3/8

8:35 pm-6:20 pm

1 stop26h 45m

Chicago O'Hare Intl

Sat 5/2

7:25 pm-8:20 pm

1 stop18h 55m

$538

LondonChicago

LHR - ORD

LHRORD

London Heathrow

Tue 2/24

11:10 am-6:25 pm

1 stop13h 15m

Chicago O'Hare Intl

Tue 3/3

3:45 pm-5:55 am

Nonstop8h 10m

$539

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from London Heathrow Airport to Chicago O'Hare Intl Airport

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Delays

Layovers

Other information

What is the cheapest month to fly to Chicago O'Hare Intl Airport?

The month of September is another great option to travel to Chicago O'Hare Intl Airport, with average flight prices from London Heathrow Airport averaging around $585.

What is the cheapest day to depart on your flight to Chicago O'Hare Intl Airport?

The cheapest day to depart on your flight to Chicago O'Hare Intl Airport is on a Wednesday when prices can be found for as low as $771. This is often the case because there is less demand to fly during this day of the week. On the other hand, Monday is the most expensive day to depart from London Heathrow Airport because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $878.

What is the cheapest time of day to depart on your flight to Chicago O'Hare Intl Airport?

Flying to Chicago O'Hare Intl Airport from London Heathrow Airport in the morning is the least expensive time of day to depart. momondo users have found prices as low as $820 when looking at flights departing in the morning. Try not to purchase tickets in the afternoon because they tend to be around $929. Of course, these prices can vary depending on the time of year and what airport you fly to.

What is the cheapest London Heathrow to Chicago O'Hare Intl flight route?

Fly from London Heathrow to Chicago O'Hare Intl for the best London Heathrow - Chicago O'Hare Intl flight prices

How far in advance should I book a flight to Chicago O'Hare Intl Airport?

You are more likely to see cheaper flights to Chicago O'Hare Intl Airport from London Heathrow Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Chicago O'Hare Intl Airport for around $725 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Chicago O'Hare Intl Airport from London Heathrow Airport for as low as $694 on momondo.

What cabin class options are available on London Heathrow to Chicago O'Hare Intl flights?

There are 4 cabin classes available to choose from on London Heathrow to Chicago O'Hare Intl flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on London Heathrow Airport to Chicago O'Hare Intl Airport flights?

You could potentially save up to 3% on your flight if you consider stops on a London Heathrow Airport to Chicago O'Hare Intl Airport flight.

How have London Heathrow Airport to Chicago O'Hare Intl Airport flight prices changed over time?

As of January 2026, prices for London Heathrow Airport to Chicago O'Hare Intl Airport flights are approximately 3% more expensive when compared to flights at the same time last year.

When to book flights from London Heathrow Airport to Chicago O'Hare Intl Airport

Are you open to changing your travel dates? Check out the ideal times to fly from London Heathrow Airport to Chicago O'Hare Intl Airport according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap London Heathrow Airport to Chicago O'Hare Intl Airport (LHR to ORD) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from London Heathrow Airport to Chicago O'Hare Intl Airport

Best Price Found	$616
Fastest flight time	8h 40m
Direct flights	Every day

The best one-way flight to Chicago O'Hare Intl Airport from London Heathrow Airport in the past 72 hours is $616. The best round-trip flight deal from London Heathrow Airport to Chicago O'Hare Intl Airport found on momondo in the last 72 hours is $659.

The fastest flight from London Heathrow Airport to Chicago O'Hare Intl Airport takes 8h 40m

Direct flights go from London Heathrow Airport to Chicago O'Hare Intl Airport every day.

Search flight deals

How far is London Heathrow to Chicago O'Hare Intl by plane?
The straight-line distance from London Heathrow to Chicago O'Hare Intl is 3939.2 mi. 8h 40m is a normal flight duration for this route.
When did momondo last update prices for flights from London Heathrow Airport to Chicago O'Hare Intl Airport?
Prices for flights from London Heathrow Airport to Chicago O'Hare Intl Airport are updated daily.
How many operators does momondo search for flights from London Heathrow Airport to Chicago O'Hare Intl Airport?
As of January 2026, there are 10 operators available to choose from for flights from London Heathrow Airport to Chicago O'Hare Intl Airport.
How old do you have to be to fly from London Heathrow Airport to Chicago O'Hare Intl Airport?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from London Heathrow Airport to Chicago O'Hare Intl Airport.
What documentation or ID do you need to fly to Chicago O'Hare Intl Airport?
The required travel and health documents for your Chicago O'Hare Intl Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Chicago O'Hare Intl Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular plane model from London Heathrow Airport to Chicago O'Hare Intl Airport?
Based on momondo bookings for flights between London Heathrow Airport and Chicago O'Hare Intl Airport, the leading plane model is Boeing 767-300, making up 26.56% of the total bookings. Other popular models include Boeing 787-9 Dreamliner with 23.77%, Boeing 777 with 13.14%, and Boeing 787-10 Dreamliner with 10.25%.
What is the most popular airline from London Heathrow Airport to Chicago O'Hare Intl Airport?
momondo data reveals that the most frequently booked airline on the route from London Heathrow Airport to Chicago O'Hare Intl Airport is British Airways, representing 39% of all bookings. The subsequent popular airlines are American Airlines at 18%, Aer Lingus at 9%, and United Airlines at 6%.

Best airlines flying from London Heathrow Airport to Chicago O'Hare Intl Airport

Compare and see reviews for airlines that fly from London Heathrow Airport to Chicago O'Hare Intl Airport with momondo

Airline	Rating	Free Cancellation	Price
Aer Lingus	PriceFrom $446	Free Cancellation	Rating 7.2 1,443 reviews	Search Aer Lingus flights
Icelandair	PriceFrom $477	Free Cancellation	Rating 7.1 606 reviews	Search Icelandair flights
United Airlines	PriceFrom $485	Free Cancellation	Rating 7.4 9,215 reviews	Search United Airlines flights
Austrian Airlines	PriceFrom $530	Free Cancellation	Rating 7.5 895 reviews	Search Austrian Airlines flights
British Airways	PriceFrom $550	Free Cancellation	Rating 6.7 7,705 reviews	Search British Airways flights
TAP AIR PORTUGAL	PriceFrom $558	Free Cancellation	Rating 7.1 2,130 reviews	Search TAP AIR PORTUGAL flights
Iberia	PriceFrom $558	Free Cancellation	Rating 7.0 3,100 reviews	Search Iberia flights
American Airlines	PriceFrom $572	Free Cancellation	Rating 7.2 11,206 reviews	Search American Airlines flights
Finnair	PriceFrom $576	Free Cancellation	Rating 7.6 1,356 reviews	Search Finnair flights
Lufthansa	PriceFrom $703	Free Cancellation	Rating 6.8 7,756 reviews	Search Lufthansa flights

Finnair Flights From London Heathrow Airport to Chicago O'Hare Intl Airport
Finnair flies from London Heathrow Airport to Chicago O'Hare Intl Airport around 25 times per week, with 1,356 momondo users rating the airline 7.6/10. The cheapest Finnair deal from London Heathrow Airport to Chicago O'Hare Intl Airport in the last 72 hours was $576 (round-trip), much lower than the average airfare cost of $750 for Finnair flights on this route.
Austrian Airlines Flights From London Heathrow Airport to Chicago O'Hare Intl Airport
Another popular option for London Heathrow Airport to Chicago O'Hare Intl Airport flights is Austrian Airlines (7.5/10, 895 ratings). Austrian Airlines flies from London Heathrow Airport to Chicago O'Hare Intl Airport around 18 times per week, with deals starting from $530 round-trip and rising to an average price of around $897.

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Why should I use momondo to find a flight deal from London to Chicago?

Finding the right flight to Chicago from London is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Chicago quick and easy, saving you time and money.

Can I find flights from London to Chicago with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for London to Chicago flights to just show those with flexible booking policies.

How can momondo help me find flights from London to Chicago?

Once you have performed a search for London to Chicago flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from London to Chicago right now. Can momondo alert me if prices change?

Price alerts on flights to Chicago from London are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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Cheap flights from London Heathrow Airport to Chicago from $472

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Icelandair flights from London Heathrow Airport to Chicago O'Hare Intl Airport

Our best Icelandair deals on London Heathrow Airport to Chicago O'Hare Intl Airport flight tickets

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

Our best British Airways deals on London Heathrow Airport to Chicago O'Hare Intl Airport flight tickets

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

See travel insights to Chicago from

How to get the cheapest flight ticket from London Heathrow Airport to Chicago O'Hare Intl Airport

What is the cheapest month to fly to Chicago O'Hare Intl Airport?

The month of September is another great option to travel to Chicago O'Hare Intl Airport, with average flight prices from London Heathrow Airport averaging around $585.

What is the cheapest day to depart on your flight to Chicago O'Hare Intl Airport?

What is the cheapest time of day to depart on your flight to Chicago O'Hare Intl Airport?

What is the cheapest London Heathrow to Chicago O'Hare Intl flight route?

Fly from London Heathrow to Chicago O'Hare Intl for the best London Heathrow - Chicago O'Hare Intl flight prices

How far in advance should I book a flight to Chicago O'Hare Intl Airport?

What cabin class options are available on London Heathrow to Chicago O'Hare Intl flights?

There are 4 cabin classes available to choose from on London Heathrow to Chicago O'Hare Intl flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on London Heathrow Airport to Chicago O'Hare Intl Airport flights?

You could potentially save up to 3% on your flight if you consider stops on a London Heathrow Airport to Chicago O'Hare Intl Airport flight.

How have London Heathrow Airport to Chicago O'Hare Intl Airport flight prices changed over time?

As of January 2026, prices for London Heathrow Airport to Chicago O'Hare Intl Airport flights are approximately 3% more expensive when compared to flights at the same time last year.

What is the cheapest airline that flies from London Heathrow to Chicago O'Hare Intl?

Icelandair and United Airlines are the most popular carriers operating from London Heathrow to Chicago O'Hare Intl

What airlines fly to Chicago O'Hare Intl Airport?

How often are flights from London to Chicago delayed?

Historically, on average around 11% of flights between London and Chicago have experienced a delay on any given week. The average delay length over the past 12 months has been 170 minutes.

What is the most punctual flight time for London to Chicago flights?

Generally, flights departing at night tend to experience fewer delays. Flights in the evening have, in the past, seen delays more frequently in comparison.

What day of the week experiences the fewest flight delays on this route?

Saturday is statistically the day of the week which experiences the fewest number of delays on this flight route. Friday has historically seen more delays on average compared to the rest of the week.

Which airline has the best punctuality record on London to Chicago flights?

According to our data, United Airlines have had the least number of delays on this route over the last 12 months; with about 5% of their flights experiencing any sort of delay.

Which airport is the most popular layover for flights between London Heathrow Airport and Chicago O'Hare Intl Airport?

Dublin (DUB) was the most common stop: 86% of momondo users choosing 1-stop flights on this route connected there.

Which layover airport offers the lowest fares from London Heathrow Airport to Chicago O'Hare Intl Airport?

Flights via Newark (EWR) offer the lowest average round-trip price of $688.

Which layover airport has the shortest travel time from London Heathrow Airport to Chicago O'Hare Intl Airport?

Flights connecting via Dublin (DUB) have the shortest average one-way travel time: 11h 27m.

Which layover airport has the shortest connection time from London Heathrow Airport to Chicago O'Hare Intl Airport?

Dublin (DUB) has the shortest average layover time for this route: 1h 30m.

How many flights depart from London Heathrow Airport to Chicago O'Hare Intl Airport on average per day?

As of January 2026, there are 35 flights per day flying from London Heathrow Airport to Chicago O'Hare Intl Airport. The most common time of day flights depart is 12:00PM, with 65% of flights taking off in the afternoon.

How many flights depart from London Heathrow Airport to Chicago O'Hare Intl Airport on average per week?

As of January 2026, 248 flights take off from London Heathrow Airport and land in Chicago O'Hare Intl Airport each week. The most common flight departure day for this route is Wed, with 17% of weekly flights taking off on this day.

When to book flights from London Heathrow Airport to Chicago O'Hare Intl Airport

Cheap London Heathrow Airport to Chicago O'Hare Intl Airport (LHR to ORD) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from London Heathrow Airport to Chicago O'Hare Intl Airport

Best Price Found

Fastest flight time

Direct flights

How far is London Heathrow to Chicago O'Hare Intl by plane?

When did momondo last update prices for flights from London Heathrow Airport to Chicago O'Hare Intl Airport?

How many operators does momondo search for flights from London Heathrow Airport to Chicago O'Hare Intl Airport?

How old do you have to be to fly from London Heathrow Airport to Chicago O'Hare Intl Airport?

What documentation or ID do you need to fly to Chicago O'Hare Intl Airport?

What is the most popular plane model from London Heathrow Airport to Chicago O'Hare Intl Airport?

What is the most popular airline from London Heathrow Airport to Chicago O'Hare Intl Airport?

Best airlines flying from London Heathrow Airport to Chicago O'Hare Intl Airport

Compare and see reviews for airlines that fly from London Heathrow Airport to Chicago O'Hare Intl Airport with momondo

Finnair Flights From London Heathrow Airport to Chicago O'Hare Intl Airport

Austrian Airlines Flights From London Heathrow Airport to Chicago O'Hare Intl Airport

Traveling to a place near Chicago?

Why use momondo?

Why should I use momondo to find a flight deal from London to Chicago?

Can I find flights from London to Chicago with flexible booking policies on momondo?

How can momondo help me find flights from London to Chicago?