S$515 Cheap Flights from Chicago to London

View S$515 flight on Tue, 13 Oct, 2026Opens 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$515 for one-way flights and S$673 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Icelandair
Tue, 17 Mar - Tue, 24 Mar
ORD
Chicago
LHR
London
S$673 Return, found 3 hours ago
S$673
Return
found 3 hours ago
Select Icelandair flight, departing Tue, 17 Mar from Chicago to London, returning Tue, 24 Mar, priced at S$673 found 3 hours ago
Virgin Atlantic
Tue, 17 Mar - Thu, 19 Mar
ORD
Chicago
LHR
London
S$737 Return, found 3 hours ago
S$737
Return
found 3 hours ago
Select Virgin Atlantic flight, departing Tue, 17 Mar from Chicago to London, returning Thu, 19 Mar, priced at S$737 found 3 hours ago
Icelandair
Wed, 18 Mar - Tue, 24 Mar
ORD
Chicago
LHR
London
S$742 Return, found 3 hours ago
S$742
Return
found 3 hours ago
Select Icelandair flight, departing Wed, 18 Mar from Chicago to London, returning Tue, 24 Mar, priced at S$742 found 3 hours ago
Scandinavian Airlines
Mon, 19 Jan - Tue, 27 Jan
ORD
Chicago
LHR
London
S$763 Return, found 4 days ago
S$763
Return
found 4 days ago
Select Scandinavian Airlines flight, departing Mon, 19 Jan from Chicago to London, returning Tue, 27 Jan, priced at S$763 found 4 days ago
Swiss International Air Lines
Sun, 11 Jan - Tue, 20 Jan
ORD
Chicago
LHR
London
S$840 Return, found 3 days ago
S$840
Return
found 3 days ago
Select Swiss International Air Lines flight, departing Sun, 11 Jan from Chicago to London, returning Tue, 20 Jan, priced at S$840 found 3 days ago
United
Sun, 11 Jan - Tue, 20 Jan
ORD
Chicago
LHR
London
S$840 Return, found 3 days ago
S$840
Return
found 3 days ago
Select United flight, departing Sun, 11 Jan from Chicago to London, returning Tue, 20 Jan, priced at S$840 found 3 days ago
United
Sun, 11 Jan - Tue, 20 Jan
ORD
Chicago
LHR
London
S$840 Return, found 3 days ago
S$840
Return
found 3 days ago
Select United flight, departing Sun, 11 Jan from Chicago to London, returning Tue, 20 Jan, priced at S$840 found 3 days ago
Delta
Mon, 19 Jan - Tue, 27 Jan
ORD
Chicago
LHR
London
S$848 Return, found 4 days ago
S$848
Return
found 4 days ago
Select Delta flight, departing Mon, 19 Jan from Chicago to London, returning Tue, 27 Jan, priced at S$848 found 4 days ago
Lufthansa
Wed, 7 Oct - Wed, 28 Oct
ORD
Chicago
LHR
London
S$851 Return, found 5 days ago
S$851
Return
found 5 days ago
Select Lufthansa flight, departing Wed, 7 Oct from Chicago to London, returning Wed, 28 Oct, priced at S$851 found 5 days ago
Air Canada
Mon, 19 Jan - Tue, 27 Jan
ORD
Chicago
LHR
London
S$854 Return, found 4 days ago
S$854
Return
found 4 days ago
Select Air Canada flight, departing Mon, 19 Jan from Chicago to London, returning Tue, 27 Jan, priced at S$854 found 4 days ago

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

November is typically the cheapest month to fly

From S$582 - S$1,033 per traveller.
Chicago to London route information
Origin airport
O'Hare Intl.
Destination airport
Heathrow
Return price
S$673
Distance
6307 km

Perfect flights from Chicago to London

Your Journey from Chicago to London

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With Expedia, you have access to a wide range of airlines, including Delta, United, Virgin Atlantic, Air Canada, British Airways, Austrian Airlines, Lufthansa, Icelandair, Scandinavian Airlines, Swiss International Air Lines. 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$515 and roundtrip prices from S$673*.
 

Pre-Flight Essentials

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Experience the Vibrant London

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Added Convenience on Your Chicago to London Flight

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

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London Airports

London

Chicago to Heathrow
S$672.80
Chicago Airports

Chicago

*Available to Expedia members.