S$498 Cheap Flights from Chicago to London

View S$498 flight on Sun, 5 Oct, 2025Opens in a new window

Popular airlines from Chicago O'Hare Intl. Airport (ORD) to London

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Cheap Flights from Chicago to London (ORD-LON)

Prices were available within the past 7 days and start at S$498 for one-way flights and S$805 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Mon, 4 Aug - Wed, 20 Aug
ORD
Chicago
LHR
London
S$805 Return, found 3 days ago
S$805
Return
found 3 days ago
Select United flight, departing Mon, 4 Aug from Chicago to London, returning Wed, 20 Aug, priced at S$805 found 3 days ago
Virgin Atlantic
Wed, 11 Feb - Tue, 17 Feb
ORD
Chicago
LHR
London
S$819 Return, found 1 day ago
S$819
Return
found 1 day ago
Select Virgin Atlantic flight, departing Wed, 11 Feb from Chicago to London, returning Tue, 17 Feb, priced at S$819 found 1 day ago
Virgin Atlantic
Tue, 5 Aug - Tue, 12 Aug
ORD
Chicago
LGW
London
S$820 Return, found 3 days ago
S$820
Return
found 3 days ago
Select Virgin Atlantic flight, departing Tue, 5 Aug from Chicago to London, returning Tue, 12 Aug, priced at S$820 found 3 days ago
Delta
Tue, 5 Aug - Tue, 12 Aug
ORD
Chicago
LGW
London
S$820 Return, found 3 days ago
S$820
Return
found 3 days ago
Select Delta flight, departing Tue, 5 Aug from Chicago to London, returning Tue, 12 Aug, priced at S$820 found 3 days ago
United
Sun, 10 Aug - Tue, 19 Aug
ORD
Chicago
LHR
London
S$828 Return, found 2 days ago
S$828
Return
found 2 days ago
Select United flight, departing Sun, 10 Aug from Chicago to London, returning Tue, 19 Aug, priced at S$828 found 2 days ago
Air Canada
Mon, 11 Aug - Wed, 20 Aug
ORD
Chicago
LHR
London
S$828 Return, found 3 days ago
S$828
Return
found 3 days ago
Select Air Canada flight, departing Mon, 11 Aug from Chicago to London, returning Wed, 20 Aug, priced at S$828 found 3 days ago
United
Mon, 4 Aug - Wed, 20 Aug
ORD
Chicago
LCY
London
S$862 Return, found 3 days ago
S$862
Return
found 3 days ago
Select United flight, departing Mon, 4 Aug from Chicago to London, returning Wed, 20 Aug, priced at S$862 found 3 days ago
Swiss International Air Lines
Mon, 4 Aug - Wed, 20 Aug
ORD
Chicago
LHR
London
S$862 Return, found 3 days ago
S$862
Return
found 3 days ago
Select Swiss International Air Lines flight, departing Mon, 4 Aug from Chicago to London, returning Wed, 20 Aug, priced at S$862 found 3 days ago
Austrian Airlines
Wed, 11 Feb - Tue, 17 Feb
ORD
Chicago
LHR
London
S$878 Return, found 1 day ago
S$878
Return
found 1 day ago
Select Austrian Airlines flight, departing Wed, 11 Feb from Chicago to London, returning Tue, 17 Feb, priced at S$878 found 1 day ago
Lufthansa
Wed, 11 Feb - Tue, 17 Feb
ORD
Chicago
LHR
London
S$881 Return, found 1 day ago
S$881
Return
found 1 day ago
Select Lufthansa flight, departing Wed, 11 Feb from Chicago to London, returning Tue, 17 Feb, priced at S$881 found 1 day ago

Find the cheapest month to fly from Chicago (ORD) to London (LON)

February is typically the cheapest month to fly

From S$639 - S$960 per traveller.

Graph displaying average flight prices per month

Chicago to London route information
Origin airport
O'Hare Intl.
Destination airport
Heathrow
Return price
S$804
Distance
6307 km

Perfect flights from Chicago to London

Your Journey from Chicago to London

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Choosing Your Ideal Flight

With Expedia, you have access to a wide range of airlines, including Air Canada, Delta, Virgin Atlantic, United, British Airways, KLM, Air France, Swiss International Air Lines, Austrian Airlines, Lufthansa. Our selection of flights from O'Hare Intl. to LON-All Airports caters to every traveler's requirements, ensuring your journey aligns with your schedule. With options from 20 airlines, you're bound to find the perfect flight.
 

Maximizing Value with Chicago to London Flights

Experience the joy of finding cheap flights from O'Hare Intl. to LON-All Airports that fit your budget. Keep an eye out for our special deals and discounts, and check our flexible one-way fares from S$498 and roundtrip prices from S$805*.
 

Pre-Flight Essentials

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Experience the Vibrant London

Picture yourself stepping off the plane in London and immersing yourself in the unique atmosphere of . From local markets to cultural festivals, each city offers its distinct charm. Make the most of your trip by exploring local attractions and indulging in the local cuisine. With Expedia, explore all this and more, tailored to your budget.
 

Added Convenience on Your Chicago to London Flight

Traveling with Expedia is more than just a flight. We offer details about in-flight amenities, baggage policies, and more to ensure a smooth and hassle-free journey. Choose from our variety of airlines and embark on a memorable journey from Chicago to London.
 

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Book Your Flight from Chicago to London with Confidence

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*Note: Prices may vary based on availability and are subject to change.

Explore a world of travel with Expedia

London Airports

London

Chicago to Heathrow
S$804.10

Southampton

Chicago to Southampton
S$1,244.90
Chicago Airports

Chicago

*Available to Expedia members.