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Cheap flights from London to Chicago O'Hare Intl Airport from $255

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 to Chicago O'Hare Intl Airport departing on 4/22. 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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0 bags

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Find the cheapest flights from London to Chicago

Cheap round-trip flights

KAYAK's recommended round-trip deals from the most popular airlines that fly from London to Chicago.
3:40 pm - 6:15 pmLGW-ORD
32h 35m1 stop
7:25 pm - 2:40 pmORD-LGW
13h 15m1 stop
$422Icelandair
Find Deal
Sat, Sep 6 - Sat, Sep 20
3:40 pm - 6:15 pmLGW-ORD
32h 35m1 stop
7:25 pm - 2:40 pmORD-LGW
13h 15m1 stop
$427Icelandair
Find Deal
Sun, Sep 7 - Sat, Sep 13
9:50 am - 3:45 pmLHR-ORD
11h 55m1 stop
10:35 pm - 12:15 pmORD-LHR
7h 40mnonstop
$513British Airways
Find Deal
Mon, Sep 15 - Tue, Sep 23
8:50 am - 2:00 pmLHR-ORD
11h 10m1 stop
5:45 pm - 7:20 amORD-LHR
7h 35mnonstop
$515British Airways
Find Deal
Thu, Apr 24 - Thu, May 1
8:40 am - 3:55 pmLHR-ORD
13h 15m1 stop
6:05 pm - 8:20 amORD-LHR
8h 15mnonstop
$535United Airlines
Find Deal
Thu, Apr 24 - Mon, May 5
7:25 am - 1:55 pmLHR-ORD
12h 30m1 stop
4:25 pm - 10:40 amORD-LHR
12h 15m1 stop
$539United Airlines
Find Deal
Sat, May 10 - Wed, May 14
10:20 am - 4:10 pmLHR-ORD
11h 50m1 stop
7:15 pm - 6:50 pmORD-LHR
17h 35m2 stops
$553Scandinavian Airlines
Find Deal
Sat, Sep 20 - Sat, Sep 27
7:50 pm - 4:10 pmLHR-ORD
26h 20m2 stops
7:15 pm - 6:50 pmORD-LHR
17h 35m2 stops
$585Scandinavian Airlines
Find Deal
Fri, Sep 5 - Sat, Sep 13
12:15 pm - 2:40 pmLHR-ORD
8h 25mnonstop
11:50 am - 6:15 amORD-LHR
12h 25m1 stop
$589American Airlines
Find Deal
Sun, May 11 - Sun, May 18
9:15 am - 11:45 amLHR-ORD
8h 30mnonstop
11:55 am - 6:15 amORD-LHR
12h 20m1 stop
$631American Airlines
Find Deal
Fri, Apr 11 - Thu, May 1

Icelandair flights from London to Chicago O'Hare Intl Airport

Our best Icelandair deals on London to Chicago O'Hare Intl Airport flight tickets
Icelandair
Sep 6
LGW3:40 pmLondon Gatwick
32h 35m
1 stop
ORD6:15 pmChicago O'Hare Intl
Sep 20
ORD7:25 pmChicago O'Hare Intl
13h 15m
1 stop
LGW2:40 pmLondon Gatwick
Icelandair
Sep 7
LGW3:40 pmLondon Gatwick
32h 35m
1 stop
ORD6:15 pmChicago O'Hare Intl
Sep 13
ORD7:25 pmChicago O'Hare Intl
13h 15m
1 stop
LGW2:40 pmLondon Gatwick
Icelandair
Sep 6
LGW3:40 pmLondon Gatwick
32h 35m
1 stop
ORD6:15 pmChicago O'Hare Intl
Sep 20
ORD7:25 pmChicago O'Hare Intl
13h 15m
1 stop
LGW2:40 pmLondon Gatwick

Lufthansa flights from London to Chicago O'Hare Intl Airport

Our best Lufthansa deals on London to Chicago O'Hare Intl Airport flight tickets
Lufthansa
Apr 24
LHR8:30 amLondon Heathrow
12h 15m
1 stop
ORD2:45 pmChicago O'Hare Intl
May 1
ORD9:20 pmChicago O'Hare Intl
8h 25m
LHR11:45 amLondon Heathrow
Lufthansa
Sep 13
LHR9:30 amLondon Heathrow
16h 25m
1 stop
ORD7:55 pmChicago O'Hare Intl
Sep 21
ORD4:00 pmChicago O'Hare Intl
8h 20m
LHR6:20 amLondon Heathrow
Lufthansa
May 3
LHR6:30 amLondon Heathrow
12h 25m
1 stop
ORD12:55 pmChicago O'Hare Intl
May 6
ORD4:05 pmChicago O'Hare Intl
8h 15m
LHR6:20 amLondon Heathrow

See travel insights to Chicago from

How to get the cheapest flight ticket from London 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 April is another great option to travel to Chicago O'Hare Intl Airport, with average flight prices from London averaging around $667.

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 $814. 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 because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $967.

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 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 $955. Of course, these prices can vary depending on the time of year and what airport you fly to.

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

Fly from London Heathrow to Chicago O'Hare Intl for the best London - 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 when booking 5 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 5 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 for as low as $722 on momondo.

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

There are 4 cabin classes available to choose from on London 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 to Chicago O'Hare Intl Airport flight prices changed over time?

As of March 2025, prices for London to Chicago O'Hare Intl Airport flights are approximately 8% more expensive when compared to flights at the same time last year.

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

Are you open to changing your travel dates? Check out the ideal times to fly from London 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 to Chicago O'Hare Intl Airport (LON to ORD) flight deals and tips

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

Best Price Found

$255

Fastest flight time

8h 25m

Direct flights

Every day
The best one-way flight to Chicago O'Hare Intl Airport from London in the past 72 hours is $255. The best round-trip flight deal from London to Chicago O'Hare Intl Airport found on momondo in the last 72 hours is $422.
The fastest flight from London to Chicago O'Hare Intl Airport takes 8h 25m
Direct flights go from London to Chicago O'Hare Intl Airport every day.

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

    A flight from London to Chicago O'Hare Intl will travel around 3950.9 mi. Flights usually cover this in 8h 25m, depending on flying conditions and air traffic around both airports.

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

    Prices for flights from London to Chicago O'Hare Intl Airport are updated daily.

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

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

    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 to Chicago O'Hare Intl Airport.

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

    The travel and health documents you'll need for your trip to Chicago O'Hare Intl Airport 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 O'Hare Intl Airport. 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 to Chicago O'Hare Intl Airport?

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


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

Compare and see reviews for airlines that fly from London to Chicago O'Hare Intl Airport with momondo
Airline
Rating
Free Cancellation
Price
IcelandairPriceFrom $451Free CancellationRating
7.0
474 reviews
Search Icelandair flights
TAP AIR PORTUGALPriceFrom $483Free CancellationRating
7.1
1,827 reviews
Search TAP AIR PORTUGAL flights
Scandinavian AirlinesPriceFrom $492Free CancellationRating
7.3
1,325 reviews
Search Scandinavian Airlines flights
American AirlinesPriceFrom $562Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
United AirlinesPriceFrom $562Free CancellationRating
7.4
8,603 reviews
Search United Airlines flights
British AirwaysPriceFrom $573Free CancellationRating
6.6
6,712 reviews
Search British Airways flights
Aer LingusPriceFrom $574Free CancellationRating
7.0
1,062 reviews
Search Aer Lingus flights
IberiaPriceFrom $582Free CancellationRating
7.0
2,649 reviews
Search Iberia flights
FinnairPriceFrom $613Free CancellationRating
7.6
1,267 reviews
Search Finnair flights
LufthansaPriceFrom $660Free CancellationRating
6.7
6,956 reviews
Search Lufthansa flights
  • Finnair Flights From London to Chicago O'Hare Intl Airport

    Finnair flies from London to Chicago O'Hare Intl Airport around 15 times per week, with 1,267 momondo users rating the airline 7.6/10. The cheapest Finnair deal from London to Chicago O'Hare Intl Airport in the last 72 hours was $613 (round-trip), much lower than the average airfare cost of $838 for Finnair flights on this route.

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

    Across 769 Austrian Airlines reviews on momondo, the average score is 7.5/10. Austrian Airlines flies from London to Chicago O'Hare Intl Airport about 7 times each week, with ticket deals ranging from $663 to $987. Price data is based on momondo searches in the last 72 hours.


Traveling to a place near Chicago?

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Lake Geneva
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Kenosha
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South Haven
Oak Brook
Racine
Tinley Park
New Buffalo
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Hammond
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Orland Park

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from London to Chicago for you.

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?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight 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?

If you are not ready to book a flight from London to Chicago now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Chicago and let you know when they change.


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