What is the cheapest airline that flies from London Heathrow to Chicago?

JetBlue is the most popular carrier operating from London Heathrow to Chicago

What airlines fly to Chicago?

British Airways, American Airlines and Aer Lingus are the top three most popular airlines that fly to Chicago from London Heathrow Airport according to our data. British Airways is the first choice among our users, with 51% of people opting to fly with this airline when traveling to Chicago. Keep in mind that there are 11 different airlines that fly to Chicago on a routine basis, so you have a few additional options to choose from.

How many flights depart from London Heathrow Airport to Chicago on average per week?

The number of flights available between London Heathrow Airport and Chicago is 366 per week as of July 2025. The most frequent departure day is Mon, with 14% of weekly flights leaving on this day.

How many flights depart from London Heathrow Airport to Chicago on average per day?

The number of flights available between London Heathrow Airport and Chicago is 52 per day as of July 2025. The most frequent departure time is 2:00PM, with 54% of daily flights leaving in the afternoon.

When did momondo last update prices for flights from London Heathrow Airport to Chicago?

Prices for flights from London Heathrow Airport to Chicago were last updated today.

How many operators does momondo search for flights from London Heathrow Airport to Chicago?

There are 11 operators available for flights from London Heathrow Airport to Chicago as of July 2025.

How old do you have to be to fly from London Heathrow Airport to Chicago?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from London Heathrow Airport to Chicago.

What documentation or ID do you need to fly to Chicago?

The travel and health documents you'll need for your trip to Chicago may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Chicago. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$301 Cheap Flights from London Heathrow Airport to Chicago in 2025

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Find the cheapest flights from London Heathrow Airport to Chicago

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

11:05 am - 2:10 pmLHR-ORD

9h 05mnonstop

6:00 pm - 8:20 amORD-LHR

8h 20mnonstop

$450Brussels Airlines

Find Deal

Mon, Aug 25 - Tue, Sep 9

10:30 am - 8:05 pmLHR-ORD

15h 35m1 stop

4:00 pm - 10:45 amORD-LHR

12h 45m1 stop

$487Lufthansa

Find Deal

Mon, Nov 17 - Sat, Nov 29

1:30 pm - 8:05 pmLHR-ORD

12h 35m1 stop

10:35 pm - 3:50 pmORD-LHR

11h 15m1 stop

$489Lufthansa

Find Deal

Mon, Nov 3 - Sat, Nov 15

8:55 am - 4:15 pmLHR-ORD

13h 20m1 stop

7:05 pm - 4:20 pmORD-LHR

15h 15m1 stop

$491SWISS

Find Deal

Mon, Nov 10 - Sun, Nov 23

8:15 am - 12:10 pmLHR-ORD

33h 55m1 stop

8:34 am - 9:30 amORD-LHR

18h 56m1 stop

$507JetBlue

Find Deal

Sat, Sep 20 - Sat, Sep 27

11:55 am - 12:10 pmLHR-ORD

30h 15m1 stop

8:50 am - 5:55 amORD-LHR

16h 05m1 stop

$509JetBlue

Find Deal

Tue, Oct 21 - Sat, Nov 1

10:20 am - 4:45 pmLHR-ORD

12h 25m1 stop

7:20 pm - 4:00 pmORD-LHR

14h 40m1 stop

$510Scandinavian Airlines

Find Deal

Wed, Nov 19 - Wed, Nov 26

6:40 am - 4:45 pmLHR-ORD

16h 05m1 stop

7:20 pm - 4:25 pmORD-LHR

15h 05m2 stops

$511Scandinavian Airlines

Find Deal

Sat, Nov 15 - Wed, Dec 3

11:55 am - 10:28 pmLHR-ORD

16h 33m1 stop

12:07 pm - 8:45 pmORD-LHR

26h 38m1 stop

$514Icelandair

Find Deal

Tue, Aug 5 - Tue, Aug 12

11:55 am - 10:28 pmLHR-ORD

16h 33m1 stop

12:07 pm - 8:45 pmORD-LHR

26h 38m1 stop

$516Icelandair

Find Deal

Tue, Aug 5 - Tue, Aug 12

American Airlines flights from London Heathrow Airport to Chicago

Our best American Airlines deals on London Heathrow Airport to Chicago flight tickets

American Airlines

Jul 16

LHR10:05 amLondon Heathrow

12h 48m

1 stop

ORD4:53 pmChicago O'Hare Intl

Aug 13

ORD10:35 pmChicago O'Hare Intl

7h 40m

LHR12:15 pmLondon Heathrow

$693

Find similar

American Airlines

Jul 16

LHR10:05 amLondon Heathrow

12h 48m

1 stop

ORD4:53 pmChicago O'Hare Intl

Aug 13

ORD4:57 pmChicago O'Hare Intl

12h 08m

1 stop

LHR11:05 amLondon Heathrow

$697

Find similar

American Airlines

Jul 16

LHR10:05 amLondon Heathrow

13h 38m

1 stop

ORD5:43 pmChicago O'Hare Intl

Jul 23

ORD4:36 pmChicago O'Hare Intl

12h 29m

1 stop

LHR11:05 amLondon Heathrow

$762

Find similar

Virgin Atlantic flights from London Heathrow Airport to Chicago

Our best Virgin Atlantic deals on London Heathrow Airport to Chicago flight tickets

Virgin Atlantic

Nov 11

LHR8:40 amLondon Heathrow

15h 56m

2 stops

MDW6:36 pmChicago Midway

Nov 16

MDW1:05 pmChicago Midway

12h 45m

1 stop

LHR7:50 amLondon Heathrow

$580

Find similar

Virgin Atlantic

Oct 31

LHR6:30 amLondon Heathrow

20h 14m

2 stops

MDW9:44 pmChicago Midway

Nov 8

MDW6:45 pmChicago Midway

11h 30m

1 stop

LHR12:15 pmLondon Heathrow

$594

Find similar

Virgin Atlantic

Nov 3

LHR12:20 pmLondon Heathrow

12h 16m

1 stop

MDW6:36 pmChicago Midway

Nov 15

MDW1:00 pmChicago Midway

13h 50m

1 stop

LHR8:50 amLondon Heathrow

$597

Find similar

How to get the cheapest flight ticket from London Heathrow Airport to Chicago

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

Other information

What is the cheapest month to fly to Chicago?

The month of February is, on average, the cheapest month to fly to Chicago from London Heathrow Airport, with most prices found around $599. If you’re not able to fly to Chicago in February, then March is your next best option. Flight prices from London Heathrow Airport to Chicago during March average around $606.

What is the cheapest day to depart on your flight to Chicago?

The cheapest day to depart on your flight to Chicago is on a Friday when prices can be found for as low as $803. This is often the case because there is less demand to fly during this day of the week. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from London Heathrow Airport to Chicago for around $939.

What is the cheapest time of day to depart on your flight to Chicago?

Our most recent data shows that the best time of day to fly to Chicago is in the evening. Flights from London Heathrow Airport to Chicago during this time can be as low as $653. In contrast, the most expensive time of day to depart to Chicago is in the afternoon when prices are around $959.

What is the cheapest London Heathrow to Chicago flight route?

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

How far in advance should I book a flight to Chicago?

You are more likely to see cheaper flights to Chicago from London Heathrow Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Chicago for around $740 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Chicago from London Heathrow Airport for as low as $703 on momondo.

What cabin class options are available on London Heathrow to Chicago flights?

There are 4 cabin classes available to choose from on London Heathrow to Chicago 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 flights?

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

How have London Heathrow Airport to Chicago flight prices changed over time?

As of July 2025, prices for London Heathrow Airport to Chicago flights are approximately 9% more expensive when compared to flights at the same time last year.

When to book flights from London Heathrow Airport to Chicago

Are you open to changing your travel dates? Check out the ideal times to fly from London Heathrow Airport to Chicago 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 (LHR to CHI) flight deals and tips

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

Best Price Found	$301
Fastest flight time	9h 05m
Direct flights	Every day
Airports in Chicago	2 airports

The best one-way flight to Chicago from London Heathrow Airport in the past 72 hours is $301. The best round-trip flight deal from London Heathrow Airport to Chicago found on momondo in the last 72 hours is $450.

The fastest flight from London Heathrow Airport to Chicago takes 9h 05m

Direct flights go from London Heathrow Airport to Chicago every day.

There are 2 airports near Chicago: Chicago O'Hare Intl (ORD), Chicago Midway (MDW)

Search flight deals

How far is London Heathrow to Chicago by plane?
There are 3933.5 mi between London Heathrow and Chicago. 9h 05m is a normal flight duration for this route.
When did momondo last update prices for flights from London Heathrow Airport to Chicago?
Prices for flights from London Heathrow Airport to Chicago were last updated today.
How many operators does momondo search for flights from London Heathrow Airport to Chicago?
There are 11 operators available for flights from London Heathrow Airport to Chicago as of July 2025.
How old do you have to be to fly from London Heathrow Airport to Chicago?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from London Heathrow Airport to Chicago.
What documentation or ID do you need to fly to Chicago?
The travel and health documents you'll need for your trip to Chicago may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Chicago. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from London Heathrow Airport to Chicago?
momondo data reveals that the most frequently booked plane model on the route from London Heathrow Airport to Chicago is Boeing 767-300, representing 44.21% of all bookings. The subsequent popular models are Boeing 787-10 Dreamliner at 18.33%, Boeing 777 at 15.26%, and Boeing 777-300ER at 6.05%.
What is the most popular airline from London Heathrow Airport to Chicago?
momondo data reveals that the most frequently booked airline on the route from London Heathrow Airport to Chicago is British Airways, representing 29% of all bookings. The subsequent popular airlines are American Airlines at 18%, Lufthansa at 14%, and Aer Lingus at 12%.

Best airlines flying from London Heathrow Airport to Chicago

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

Airline	Rating	Free Cancellation	Price
Icelandair	PriceFrom $451	Free Cancellation	Rating 7.0 514 reviews	Search Icelandair flights
Scandinavian Airlines	PriceFrom $462	Free Cancellation	Rating 7.3 1,419 reviews	Search Scandinavian Airlines flights
United Airlines	PriceFrom $485	Free Cancellation	Rating 7.4 8,846 reviews	Search United Airlines flights
British Airways	PriceFrom $551	Free Cancellation	Rating 6.6 7,109 reviews	Search British Airways flights
TAP AIR PORTUGAL	PriceFrom $558	Free Cancellation	Rating 7.1 1,914 reviews	Search TAP AIR PORTUGAL flights
Aer Lingus	PriceFrom $568	Free Cancellation	Rating 7.1 1,152 reviews	Search Aer Lingus flights
Iberia	PriceFrom $582	Free Cancellation	Rating 7.0 2,826 reviews	Search Iberia flights
American Airlines	PriceFrom $582	Free Cancellation	Rating 7.2 10,000 reviews	Search American Airlines flights
Austrian Airlines	PriceFrom $586	Free Cancellation	Rating 7.6 806 reviews	Search Austrian Airlines flights
Finnair	PriceFrom $607	Free Cancellation	Rating 7.6 1,312 reviews	Search Finnair flights

Austrian Airlines Flights From London Heathrow Airport to Chicago
Austrian Airlines flight deals from London Heathrow Airport to Chicago start from $586 round-trip. Over the 21 Austrian Airlines flights for this route in a normal week, average airfare is usually $987 round-trip - but some users have found much cheaper deals with momondo.
Finnair Flights From London Heathrow Airport to Chicago
Another popular option for London Heathrow Airport to Chicago flights is Finnair (7.6/10, 1,312 ratings). Finnair flies from London Heathrow Airport to Chicago around 34 times per week, with deals starting from $607 round-trip and rising to an average price of around $838.

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New Buffalo

Hammond

Benton Harbor

Saint Joseph

Portage

Lansing

Schererville

Valparaiso

Crown Point

Munster

Monticello

Chesterton

Porter

Griffith

Saint John

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from London to Chicago. momondo saves you time and could save you money on your trip.

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

All flight searches from London to Chicago on momondo can be filtered to show those which offer flexible booking policies.

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

momondo provides multiple filters to help you find the best flight to Chicago from London. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

Of course. momondo tracks the price of London to Chicago flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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Find better results for your trip to the United States

Fly into one of these airports located in Chicago

Chicago Midway Airport

Chicago O'Hare Intl Airport

Chicago Greater Rockford Airport

Popular cities in the United States

Flights to New Yorkfrom $37

Flights to Los Angelesfrom $39

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Flights to Las Vegasfrom $16

Flights to Orlandofrom $36

Flights to San Franciscofrom $56

Flights to Washington, D.C.from $38

Flights to Bostonfrom $57

Flights to Dallasfrom $66

Flights to Atlantafrom $49

Flights to Seattlefrom $82

Flights to Denverfrom $73

Cheap flights from London Heathrow Airport to Chicago from $301

Big names and deals

Big names and deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

Price Alerts

Price Alerts

Find the cheapest flights from London Heathrow Airport to Chicago

Cheap round-trip flights

Cheap one-way flights

Cheap last minute flights

Cheap direct flights

American Airlines flights from London Heathrow Airport to Chicago

Our best American Airlines deals on London Heathrow Airport to Chicago flight tickets

Virgin Atlantic flights from London Heathrow Airport to Chicago

Our best Virgin Atlantic deals on London Heathrow Airport to Chicago flight tickets

See travel insights to Chicago from

How to get the cheapest flight ticket from London Heathrow Airport to Chicago

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

What is the cheapest month to fly to Chicago?

What is the cheapest day to depart on your flight to Chicago?

What is the cheapest time of day to depart on your flight to Chicago?

Our most recent data shows that the best time of day to fly to Chicago is in the evening. Flights from London Heathrow Airport to Chicago during this time can be as low as $653. In contrast, the most expensive time of day to depart to Chicago is in the afternoon when prices are around $959.

What is the cheapest London Heathrow to Chicago flight route?

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

How far in advance should I book a flight to Chicago?

What cabin class options are available on London Heathrow to Chicago flights?

There are 4 cabin classes available to choose from on London Heathrow to Chicago 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 flights?

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

How have London Heathrow Airport to Chicago flight prices changed over time?

As of July 2025, prices for London Heathrow Airport to Chicago flights are approximately 9% more expensive when compared to flights at the same time last year.

What is the cheapest airline that flies from London Heathrow to Chicago?

JetBlue is the most popular carrier operating from London Heathrow to Chicago

What airlines fly to Chicago?

How many flights depart from London Heathrow Airport to Chicago on average per day?

The number of flights available between London Heathrow Airport and Chicago is 52 per day as of July 2025. The most frequent departure time is 2:00PM, with 54% of daily flights leaving in the afternoon.

How many flights depart from London Heathrow Airport to Chicago on average per week?

The number of flights available between London Heathrow Airport and Chicago is 366 per week as of July 2025. The most frequent departure day is Mon, with 14% of weekly flights leaving on this day.

When to book flights from London Heathrow Airport to Chicago

Cheap London Heathrow Airport to Chicago (LHR to CHI) flight deals and tips

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

Best Price Found

Fastest flight time

Direct flights

Airports in Chicago

How far is London Heathrow to Chicago by plane?

When did momondo last update prices for flights from London Heathrow Airport to Chicago?

How many operators does momondo search for flights from London Heathrow Airport to Chicago?

How old do you have to be to fly from London Heathrow Airport to Chicago?

What documentation or ID do you need to fly to Chicago?

What is the most popular plane model from London Heathrow Airport to Chicago?

What is the most popular airline from London Heathrow Airport to Chicago?

Best airlines flying from London Heathrow Airport to Chicago

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

Austrian Airlines Flights From London Heathrow Airport to Chicago

Finnair Flights From London Heathrow Airport to Chicago

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?

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

An easier way to manage your Chicago trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to the United States

Fly into one of these airports located in Chicago

Airports listed have a maximum distance of 78.5 mi from Chicago