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.

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

Austrian Airlines, Finnair, and SWISS are the most popular carriers operating from London Heathrow to Chicago O'Hare Intl

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: 75% of momondo users choosing 1-stop flights on this route connected there.

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 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.

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

As of December 2025, 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.

$397 Cheap Flights from London Heathrow Airport to Chicago O'Hare Intl Airport in 2025/26

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10:20 am - 4:45 pm

LHR

ORD

12h 25m1 stop

7:10 pm - 6:50 pm

ORD

LHR

17h 40m2 stops

$624Scandinavian Airlines

Mon, Jan 19 - Sun, Feb 1

8:35 pm - 5:20 pm

LHR

ORD

26h 45m1 stop

6:30 pm - 10:50 am

ORD

LHR

10h 20m1 stop

$625Icelandair

Sun, Feb 15 - Thu, Feb 19

5:30 pm - 4:45 pm

LHR

ORD

29h 15m2 stops

7:20 pm - 4:00 pm

ORD

LHR

14h 40m1 stop

$626Scandinavian Airlines

Wed, Dec 24 - Thu, Jan 22

6:35 am - 2:10 pm

LHR

ORD

13h 35m1 stop

5:50 pm - 7:55 am

ORD

LHR

8h 05mnonstop

$627Lufthansa

Wed, Jan 21 - Wed, Jan 28

8:05 pm - 12:45 pm

LHR

ORD

22h 40m1 stop

6:50 pm - 1:00 pm

ORD

LHR

12h 10m1 stop

$628SWISS

Mon, Jan 12 - Mon, Jan 19

12:15 pm - 5:20 pm

LHR

ORD

11h 05m1 stop

10:40 pm - 8:20 pm

ORD

LHR

15h 40m1 stop

$629Icelandair

Fri, Feb 27 - Tue, Jun 30

7:05 am - 4:45 pm

LHR

ORD

15h 40m2 stops

7:05 am - 9:20 am

ORD

LHR

20h 15m2 stops

$630Scandinavian Airlines

Thu, Feb 19 - Tue, Feb 24

6:40 am - 8:53 pm

LHR

ORD

20h 13m2 stops

7:20 pm - 6:50 pm

ORD

LHR

17h 30m2 stops

$631Scandinavian Airlines

Sat, Jan 24 - Sat, Feb 7

7:50 pm - 4:45 pm

LHR

ORD

26h 55m2 stops

7:20 pm - 4:25 pm

ORD

LHR

15h 05m2 stops

$632Scandinavian Airlines

Wed, Dec 24 - Wed, Jan 21

7:30 am - 3:20 pm

LHR

ORD

13h 50m1 stop

3:45 pm - 5:55 am

ORD

LHR

8h 10mnonstop

$633Lufthansa

Mon, Jan 12 - Mon, Jan 19

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

Mar 17

LHR12:15 pmLondon Heathrow

11h 05m

1 stop

ORD6:20 pmChicago O'Hare Intl

May 4

ORD7:25 pmChicago O'Hare Intl

18h 55m

1 stop

LHR8:20 pmLondon Heathrow

$608

Find similar

Icelandair

Mar 15

LHR8:35 pmLondon Heathrow

26h 45m

1 stop

ORD6:20 pmChicago O'Hare Intl

May 5

ORD7:25 pmChicago O'Hare Intl

18h 55m

1 stop

LHR8:20 pmLondon Heathrow

$609

Find similar

Icelandair

Mar 17

LHR12:15 pmLondon Heathrow

11h 05m

1 stop

ORD6:20 pmChicago O'Hare Intl

May 1

ORD7:25 pmChicago O'Hare Intl

10h 30m

1 stop

LHR11:55 amLondon Heathrow

$616

Find similar

Scandinavian Airlines flights from London Heathrow Airport to Chicago O'Hare Intl Airport

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

Scandinavian Airlines

Mar 19

LHR10:20 amLondon Heathrow

12h 25m

1 stop

ORD5:45 pmChicago O'Hare Intl

Apr 29

ORD7:15 pmChicago O'Hare Intl

14h 45m

1 stop

LHR4:00 pmLondon Heathrow

$611

Find similar

Scandinavian Airlines

Mar 15

LHR6:40 amLondon Heathrow

40h 05m

2 stops

ORD5:45 pmChicago O'Hare Intl

Apr 29

ORD7:15 pmChicago O'Hare Intl

14h 45m

1 stop

LHR4:00 pmLondon Heathrow

$614

Find similar

Scandinavian Airlines

Mar 25

LHR6:40 amLondon Heathrow

16h 05m

1 stop

ORD5:45 pmChicago O'Hare Intl

Apr 15

ORD7:15 pmChicago O'Hare Intl

14h 45m

1 stop

LHR4:00 pmLondon Heathrow

$615

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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.

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Fly to

Route

Depart

Return

Price

LondonChicago

LHR - ORD

LHRORD

London Heathrow

Mon 1/19

10:20 am-4:45 pm

1 stop12h 25m

Chicago O'Hare Intl

Sun 2/1

7:10 pm-6:50 pm

2 stops17h 40m

$624

LondonChicago

LHR - ORD

LHRORD

London Heathrow

Sun 2/15

8:35 pm-5:20 pm

1 stop26h 45m

Chicago O'Hare Intl

Thu 2/19

6:30 pm-10:50 am

1 stop10h 20m

$625

LondonChicago

LHR - ORD

LHRORD

London Heathrow

Wed 12/24

5:30 pm-4:45 pm

2 stops29h 15m

Chicago O'Hare Intl

Thu 1/22

7:20 pm-4:00 pm

1 stop14h 40m

$626

LondonChicago

LHR - ORD

LHRORD

London Heathrow

Wed 1/21

6:35 am-2:10 pm

1 stop13h 35m

Chicago O'Hare Intl

Wed 1/28

5:50 pm-7:55 am

Nonstop8h 05m

$627

LondonChicago

LHR - ORD

LHRORD

London Heathrow

Mon 1/12

8:05 pm-12:45 pm

1 stop22h 40m

Chicago O'Hare Intl

Mon 1/19

6:50 pm-1:00 pm

1 stop12h 10m

$628

LondonChicago

LHR - ORD

LHRORD

London Heathrow

Fri 2/27

12:15 pm-5:20 pm

1 stop11h 05m

Chicago O'Hare Intl

Tue 6/30

10:40 pm-8:20 pm

1 stop15h 40m

$629

LondonChicago

LHR - ORD

LHRORD

London Heathrow

Thu 2/19

7:05 am-4:45 pm

2 stops15h 40m

Chicago O'Hare Intl

Tue 2/24

7:05 am-9:20 am

2 stops20h 15m

$630

LondonChicago

LHR - ORD

LHRORD

London Heathrow

Sat 1/24

6:40 am-8:53 pm

2 stops20h 13m

Chicago O'Hare Intl

Sat 2/7

7:20 pm-6:50 pm

2 stops17h 30m

$631

LondonChicago

LHR - ORD

LHRORD

London Heathrow

Wed 12/24

7:50 pm-4:45 pm

2 stops26h 55m

Chicago O'Hare Intl

Wed 1/21

7:20 pm-4:25 pm

2 stops15h 05m

$632

LondonChicago

LHR - ORD

LHRORD

London Heathrow

Mon 1/12

7:30 am-3:20 pm

1 stop13h 50m

Chicago O'Hare Intl

Mon 1/19

3:45 pm-5:55 am

Nonstop8h 10m

$633

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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 February is another great option to travel to Chicago O'Hare Intl Airport, with average flight prices from London Heathrow Airport averaging around $591.

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 $775. 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 $871.

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 evening is the least expensive time of day to depart. momondo users have found prices as low as $695 when looking at flights departing in the evening. Try not to purchase tickets in the afternoon because they tend to be around $878. 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 $696 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?

No. A direct flight is the cheapest option for a flight between London Heathrow Airport to Chicago O'Hare Intl Airport.

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

As of December 2025, prices for London Heathrow Airport to Chicago O'Hare Intl Airport flights are approximately 4% 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	$637
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 $637. 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 $739.

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 December 2025, 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 35.46% of the total bookings. Other popular models include Boeing 787-9 Dreamliner with 20.88%, Boeing 777 with 12.52%, and Boeing 787-10 Dreamliner with 11.89%.
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 8%, and United Airlines at 7%.

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 1,394 reviews	Search Aer Lingus flights
Icelandair	PriceFrom $451	Free Cancellation	Rating 7.0 589 reviews	Search Icelandair flights
United Airlines	PriceFrom $485	Free Cancellation	Rating 7.4 9,095 reviews	Search United Airlines flights
Austrian Airlines	PriceFrom $530	Free Cancellation	Rating 7.6 879 reviews	Search Austrian Airlines flights
British Airways	PriceFrom $552	Free Cancellation	Rating 6.7 7,571 reviews	Search British Airways flights
TAP AIR PORTUGAL	PriceFrom $558	Free Cancellation	Rating 7.1 2,089 reviews	Search TAP AIR PORTUGAL flights
Iberia	PriceFrom $558	Free Cancellation	Rating 7.0 3,045 reviews	Search Iberia flights
American Airlines	PriceFrom $572	Free Cancellation	Rating 7.2 11,050 reviews	Search American Airlines flights
Finnair	PriceFrom $625	Free Cancellation	Rating 7.6 1,334 reviews	Search Finnair flights
Lufthansa	PriceFrom $720	Free Cancellation	Rating 6.8 7,626 reviews	Search Lufthansa flights

Austrian Airlines Flights From London Heathrow Airport to Chicago O'Hare Intl Airport
Austrian Airlines flies from London Heathrow Airport to Chicago O'Hare Intl Airport around 13 times per week, with 879 momondo users rating the airline 7.6/10. The cheapest Austrian Airlines deal from London Heathrow Airport to Chicago O'Hare Intl Airport in the last 72 hours was $530 (round-trip), much lower than the average airfare cost of $897 for Austrian Airlines flights on this route.
Finnair 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 Finnair (7.6/10, 1,334 ratings). Finnair flies from London Heathrow Airport to Chicago O'Hare Intl Airport around 22 times per week, with deals starting from $625 round-trip and rising to an average price of around $808.

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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 $529

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

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

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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 February is another great option to travel to Chicago O'Hare Intl Airport, with average flight prices from London Heathrow Airport averaging around $591.

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?

No. A direct flight is the cheapest option for a flight between London Heathrow Airport to Chicago O'Hare Intl Airport.

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

As of December 2025, prices for London Heathrow Airport to Chicago O'Hare Intl Airport flights are approximately 4% 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?

Austrian Airlines, Finnair, and SWISS 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 172 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: 75% 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 December 2025, there are 33 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 68% 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 December 2025, 234 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 18% 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

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

Finnair 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?