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Cheap flights from Chicago O'Hare Intl Airport to London from $193

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Chicago O'Hare Intl Airport to London departing on 7/16. 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 Chicago O'Hare Intl Airport to London

Cheap round-trip flights

KAYAK's recommended round-trip deals from the most popular airlines that fly from Chicago O'Hare Intl Airport to London.
Scandinavian Airlines Logo
7:15 pm - 5:40 pmORD-LHR
16h 25m1 stop
Scandinavian Airlines Logo
6:40 am - 4:10 pmLHR-ORD
15h 30m1 stop
$423Scandinavian Airlines
Find Deal
mar., sep. 23 - mar., sep. 30
Scandinavian Airlines Logo
7:15 pm - 9:40 pmORD-LHR
20h 25m1 stop
Scandinavian Airlines Logo
6:40 pm - 4:10 pmLHR-ORD
27h 30m1 stop
$424Scandinavian Airlines
Find Deal
lun., sep. 22 - lun., sep. 29
Scandinavian Airlines Logo
7:15 pm - 4:00 pmORD-LHR
14h 45m1 stop
Scandinavian Airlines Logo
7:05 am - 4:10 pmLHR-ORD
15h 05m2 stops
$426Scandinavian Airlines
Find Deal
lun., oct. 6 - lun., oct. 13
British Airways Logo
7:10 pm - 9:05 amORD-LHR
7h 55mnonstop
British Airways Logo
3:30 pm - 6:15 pmLHR-ORD
8h 45mnonstop
$604British Airways
Find Deal
mar., ago. 5 - mié., ago. 20
Iberia Logo
3:16 pm - 7:50 amORD-LHR
10h 34m1 stop
Iberia Logo
9:15 am - 11:50 amLHR-ORD
8h 35mnonstop
$605Iberia
Find Deal
mar., ago. 5 - mié., ago. 20
Iberia Logo
4:42 pm - 10:20 amORD-LHR
11h 38m1 stop
Iberia Logo
11:05 am - 1:50 pmLHR-ORD
8h 45mnonstop
$643Iberia
Find Deal
mié., ago. 13 - mié., ago. 20
American Airlines Logo
4:55 pm - 6:50 amORD-LHR
7h 55mnonstop
American Airlines Logo
7:40 am - 3:45 pmLHR-ORD
14h 05m1 stop
$651American Airlines
Find Deal
mar., ago. 19 - jue., ago. 28
British Airways Logo
7:15 pm - 9:10 amORD-LHR
7h 55mnonstop
British Airways Logo
9:15 am - 11:50 amLHR-ORD
8h 35mnonstop
$654British Airways
Find Deal
mié., jul. 23 - mar., ago. 19
United Airlines Logo
6:00 pm - 8:20 amORD-LHR
8h 20mnonstop
United Airlines Logo
8:40 am - 12:10 pmLHR-ORD
33h 30m1 stop
$664United Airlines
Find Deal
lun., oct. 6 - lun., oct. 13
American Airlines Logo
1:55 pm - 7:50 amORD-LGW
11h 55m2 stops
American Airlines Logo
10:40 am - 11:56 pmLGW-ORD
19h 16m2 stops
$684American Airlines
Find Deal
dom., may. 11 - mar., may. 20

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

Our best Scandinavian Airlines deals on Chicago O'Hare Intl Airport to London flight tickets
Scandinavian Airlines
Sep 23
ORD7:15 pmChicago O'Hare Intl
16h 25m
1 stop
LHR5:40 pmLondon Heathrow
Sep 30
LHR6:40 amLondon Heathrow
15h 30m
1 stop
ORD4:10 pmChicago O'Hare Intl
Scandinavian Airlines
Sep 22
ORD7:15 pmChicago O'Hare Intl
20h 25m
1 stop
LHR9:40 pmLondon Heathrow
Sep 29
LHR6:40 pmLondon Heathrow
27h 30m
1 stop
ORD4:10 pmChicago O'Hare Intl
Scandinavian Airlines
Oct 6
ORD7:15 pmChicago O'Hare Intl
14h 45m
1 stop
LHR4:00 pmLondon Heathrow
Oct 13
LHR7:05 amLondon Heathrow
15h 05m
2 stops
ORD4:10 pmChicago O'Hare Intl

TAP AIR PORTUGAL flights from Chicago O'Hare Intl Airport to London

Our best TAP AIR PORTUGAL deals on Chicago O'Hare Intl Airport to London flight tickets
TAP AIR PORTUGAL
Sep 22
ORD6:10 pmChicago O'Hare Intl
15h 25m
1 stop
LGW3:35 pmLondon Gatwick
Oct 21
LGW4:25 pmLondon Gatwick
29h 45m
1 stop
ORD4:10 pmChicago O'Hare Intl
TAP AIR PORTUGAL
Oct 16
ORD6:00 pmChicago O'Hare Intl
18h 50m
1 stop
LHR6:50 pmLondon Heathrow
Oct 28
LHR6:30 pmLondon Heathrow
26h 30m
1 stop
ORD4:00 pmChicago O'Hare Intl
TAP AIR PORTUGAL
Sep 22
ORD6:10 pmChicago O'Hare Intl
15h 25m
1 stop
LGW3:35 pmLondon Gatwick
Oct 21
LGW10:35 amLondon Gatwick
35h 35m
1 stop
ORD4:10 pmChicago O'Hare Intl

See travel insights to London from

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

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 London?

The cheapest month to fly to London from Chicago O'Hare Intl Airport is in April. Flight prices, which tend to average around $652, are often lower during this time because this is during the off-season. The month of February is another great option to travel to London, with average flight prices from Chicago O'Hare Intl Airport averaging around $656.

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

The cheapest day to depart from Chicago O'Hare Intl Airport to London is on a Wednesday. Travelers who choose to depart for London on a Wednesday will often find tickets for as low as $770. If your travel schedule is flexible, try to avoid departing on a Saturday because tickets tend to average around $885. These prices are subject to change though, so be sure to set up a Price Alert for flights to London.

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

Flying to London from Chicago O'Hare Intl Airport in the morning is the least expensive time of day to depart. momondo users have found prices as low as $728 when looking at flights departing in the morning. Flights to London are more costly in the evening, with an average ticket price of $836. Departure times in the evening fall within the peak daily travel times, which is why tickets can be more expensive.

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

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

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

You are more likely to see cheaper flights to London from Chicago O'Hare Intl Airport when booking 3 weeks ahead of your departure date. In general, you can expect to find flights to London for around $784 when searching 3 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to London from Chicago O'Hare Intl Airport for as low as $712 on momondo.

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

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

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

As of April 2025, prices for Chicago O'Hare Intl Airport to London flights are approximately 11% cheaper when compared to flights at the same time last year.

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

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

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

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

Best Price Found

$193

Fastest flight time

7h 50m

Direct flights

Every day

Airports in London

5 airports
The best one-way flight to London from Chicago O'Hare Intl Airport in the past 72 hours is $193. The best round-trip flight deal from Chicago O'Hare Intl Airport to London found on momondo in the last 72 hours is $423.
The fastest flight from Chicago O'Hare Intl Airport to London takes 7h 50m
Direct flights go from Chicago O'Hare Intl Airport to London every day.
There are 5 airports near London: London City (LCY), London Heathrow (LHR), London Luton (LTN), London Stansted (STN), London Gatwick (LGW)

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

    The straight-line distance from Chicago O'Hare Intl to London is 3950.9 mi. 7h 55m is a normal flight duration for this route.

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

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

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

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

    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 Chicago O'Hare Intl Airport to London.

  • What documentation or ID do you need to fly to London?

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

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


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

Compare and see reviews for airlines that fly from Chicago O'Hare Intl Airport to London with momondo
Airline
Rating
Free Cancellation
Price
SWISSPriceFrom $257Free CancellationRating
7.5
1,582 reviews
Search SWISS flights
Scandinavian AirlinesPriceFrom $381Free CancellationRating
7.3
1,344 reviews
Search Scandinavian Airlines flights
IcelandairPriceFrom $468Free CancellationRating
7.0
484 reviews
Search Icelandair flights
TAP AIR PORTUGALPriceFrom $506Free CancellationRating
7.1
1,845 reviews
Search TAP AIR PORTUGAL flights
JetBluePriceFrom $516Free CancellationRating
7.3
2,924 reviews
Search JetBlue flights
LufthansaPriceFrom $547Free CancellationRating
6.7
7,027 reviews
Search Lufthansa flights
Air CanadaPriceFrom $554Free CancellationRating
7.0
9,189 reviews
Search Air Canada flights
FinnairPriceFrom $558Free CancellationRating
7.6
1,272 reviews
Search Finnair flights
IberiaPriceFrom $578Free CancellationRating
7.0
2,682 reviews
Search Iberia flights
Aer LingusPriceFrom $585Free CancellationRating
7.0
1,068 reviews
Search Aer Lingus flights
  • Alaska Airlines Flights From Chicago O'Hare Intl Airport to London

    The lowest priced Alaska Airlines flight from Chicago O'Hare Intl Airport to London from the last 72 hours was $809. Generally, Alaska Airlines has 36 flights on this route every week with an average price of $973. Alaska Airlines is rated 8.0/10 by our users.

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

    The best Finnair deal for Chicago O'Hare Intl Airport to London flight tickets found on momondo in the last 72 hours was $558, round-trip. It should be noted that an average Finnair flight deal for this route in this time was higher, at $710 round-trip. Finnair operates 33 flights out of Chicago O'Hare Intl Airport into London in an average week, so prices vary by time and availability. 1,272 Finnair reviews by users on momondo have scored the airline at 7.6/10.


Traveling to a place near London?

Book flights to London if you plan to visit one of these locations
Gatwick
Hounslow
Croydon
Luton
Guildford
Slough
Hayes
Dartford
Dover
Stansted
Ilford
Milton Keynes
Canterbury
Colchester
Horley
Wembley
Chelmsford
Richmond
Crawley
Hook

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Chicago to London. Millions of users trust and use momondo every year so you are in good hands.

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

momondo does allow users to show only those flights to London from Chicago which offer a flexible booking policy as well as other useful filters and features.

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

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 Chicago to London.

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

Of course. momondo tracks the price of Chicago to London 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 Kingdom

Fly into one of these airports located in London

Airports listed have a maximum distance of 35.6 mi from London