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Cheap flights from London Heathrow Airport to Chicago O'Hare Intl Airport from $334

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from London Heathrow Airport to Chicago O'Hare Intl Airport departing on 5/8. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from London Heathrow Airport to Chicago

Cheap round-trip flights

KAYAK's recommended round-trip deals from the most popular airlines that fly from London Heathrow Airport to Chicago.
Icelandair Logo
9:25 pm - 6:15 pmLHR-ORD
26h 50m1 stop
Icelandair Logo
7:25 pm - 11:55 amORD-LHR
10h 30m1 stop
$523Icelandair
Find Deal
Tue, Jun 17 - Thu, Jun 26
Icelandair Logo
1:05 pm - 6:15 pmLHR-ORD
11h 10m1 stop
Icelandair Logo
7:25 pm - 11:55 amORD-LHR
10h 30m1 stop
$531Icelandair
Find Deal
Wed, Sep 17 - Wed, Sep 24
Lufthansa Logo
7:25 am - 1:55 pmLHR-ORD
12h 30m1 stop
Lufthansa Logo
2:35 pm - 9:40 amORD-LHR
13h 05m1 stop
$532Lufthansa
Find Deal
Mon, May 5 - Sun, May 11
Lufthansa Logo
6:55 am - 1:55 pmLHR-ORD
13h 00m1 stop
Lufthansa Logo
2:35 pm - 9:40 amORD-LHR
13h 05m1 stop
$533Lufthansa
Find Deal
Mon, May 5 - Sun, May 11
British Airways Logo
9:50 am - 3:45 pmLHR-ORD
11h 55m1 stop
British Airways Logo
8:40 pm - 10:30 amORD-LHR
7h 50mnonstop
$534British Airways
Find Deal
Thu, Sep 18 - Mon, Sep 22
British Airways Logo
9:50 am - 3:45 pmLHR-ORD
11h 55m1 stop
British Airways Logo
10:35 pm - 12:15 pmORD-LHR
7h 40mnonstop
$535British Airways
Find Deal
Wed, Sep 10 - Wed, Sep 17
United Airlines Logo
10:50 am - 6:15 pmLHR-ORD
13h 25m1 stop
United Airlines Logo
1:10 pm - 6:45 amORD-LHR
11h 35m1 stop
$557United Airlines
Find Deal
Sat, Sep 13 - Sat, Sep 20
United Airlines Logo
6:50 am - 12:00 pmLHR-ORD
11h 10m1 stop
United Airlines Logo
10:40 am - 6:30 amORD-LHR
13h 50m1 stop
$558United Airlines
Find Deal
Sat, May 3 - Sat, May 10
American Airlines Logo
12:15 pm - 2:40 pmLHR-ORD
8h 25mnonstop
American Airlines Logo
8:30 pm - 10:30 amORD-LHR
8h 00mnonstop
$589American Airlines
Find Deal
Tue, May 6 - Wed, May 14
American Airlines Logo
12:15 pm - 2:45 pmLHR-ORD
8h 30mnonstop
American Airlines Logo
7:15 pm - 9:10 amORD-LHR
7h 55mnonstop
$597American Airlines
Find Deal
Sun, May 4 - Sun, May 11

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

Our best Lufthansa deals on London Heathrow Airport to Chicago O'Hare Intl Airport flight tickets
Lufthansa
May 5
LHR7:25 amLondon Heathrow
12h 30m
1 stop
ORD1:55 pmChicago O'Hare Intl
May 11
ORD2:35 pmChicago O'Hare Intl
13h 05m
1 stop
LHR9:40 amLondon Heathrow
Lufthansa
May 5
LHR6:55 amLondon Heathrow
13h 00m
1 stop
ORD1:55 pmChicago O'Hare Intl
May 11
ORD2:35 pmChicago O'Hare Intl
13h 05m
1 stop
LHR9:40 amLondon Heathrow
Lufthansa
May 3
LHR6:30 amLondon Heathrow
12h 25m
1 stop
ORD12:55 pmChicago O'Hare Intl
May 12
ORD4:05 pmChicago O'Hare Intl
8h 15m
LHR6:20 amLondon Heathrow

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

Our best SWISS deals on London Heathrow Airport to Chicago O'Hare Intl Airport flight tickets
SWISS
Apr 30
LHR8:05 pmLondon Heathrow
22h 40m
1 stop
ORD12:45 pmChicago O'Hare Intl
May 5
ORD6:35 pmChicago O'Hare Intl
12h 25m
1 stop
LHR1:00 pmLondon Heathrow
SWISS
Sep 10
LHR8:05 pmLondon Heathrow
22h 05m
1 stop
ORD12:10 pmChicago O'Hare Intl
Sep 16
ORD2:20 pmChicago O'Hare Intl
20h 05m
1 stop
LHR4:25 pmLondon Heathrow
SWISS
May 1
LHR6:00 amLondon Heathrow
15h 55m
1 stop
ORD3:55 pmChicago O'Hare Intl
May 14
ORD7:05 pmChicago O'Hare Intl
15h 30m
2 stops
LHR4:35 pmLondon Heathrow

See travel insights to Chicago from

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

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

The month of November is another great option to travel to Chicago O'Hare Intl Airport, with average flight prices from London Heathrow Airport averaging around $685.

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 $812. This is often the case because there is less demand to fly during this day of the week. On the other hand, Sunday 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 $952.

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 $956. 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 13 weeks ahead of your departure date. In general, you can expect to find flights to Chicago O'Hare Intl Airport for around $740 when searching 13 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 $701 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.

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

As of April 2025, prices for London Heathrow Airport to Chicago O'Hare Intl Airport flights are approximately 65% 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

$334

Fastest flight time

8h 25m

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 $334. 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 $523.
The fastest flight from London Heathrow Airport to Chicago O'Hare Intl Airport takes 8h 25m
Direct flights go from London Heathrow Airport to Chicago O'Hare Intl Airport every day.

  • 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 25m 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?

  • 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?

  • 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
Airline
Rating
Free Cancellation
Price
IcelandairPriceFrom $451Free CancellationRating
7.0
484 reviews
Search Icelandair flights
Scandinavian AirlinesPriceFrom $462Free CancellationRating
7.3
1,344 reviews
Search Scandinavian Airlines flights
TAP AIR PORTUGALPriceFrom $483Free CancellationRating
7.1
1,844 reviews
Search TAP AIR PORTUGAL flights
British AirwaysPriceFrom $551Free CancellationRating
6.6
6,799 reviews
Search British Airways flights
United AirlinesPriceFrom $562Free CancellationRating
7.4
8,683 reviews
Search United Airlines flights
Aer LingusPriceFrom $574Free CancellationRating
7.0
1,068 reviews
Search Aer Lingus flights
IberiaPriceFrom $582Free CancellationRating
7.0
2,684 reviews
Search Iberia flights
American AirlinesPriceFrom $583Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
FinnairPriceFrom $613Free CancellationRating
7.6
1,272 reviews
Search Finnair flights
LufthansaPriceFrom $660Free CancellationRating
6.7
7,027 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 33 times per week, with 1,272 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 $613 (round-trip), much lower than the average airfare cost of $852 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, 780 ratings). Austrian Airlines flies from London Heathrow Airport to Chicago O'Hare Intl Airport around 21 times per week, with deals starting from $663 round-trip and rising to an average price of around $1,161.


Traveling to a place near Chicago?

Book flights to Chicago if you plan to visit one of these locations
Lake Geneva
Rockford
Schaumburg
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Gurnee
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Naperville
Kenosha
Joliet
South Haven
Oak Brook
Racine
New Buffalo
Elgin
Tinley Park
Hammond
Aurora
Orland Park
Janesville
South Holland

Why use momondo?

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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