Cheap Flights from Chicago (CHI) to London (LON)

View AU$368 flight on Sun, 24 Aug. 2025Opens in a new window

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Cheap Flights from Chicago (CHI) to London (LON)

Prices were available within the past 7 days for one-way flights and round trip tickets for the period specified. Prices and availability are subject to change. Additional terms apply.

Air Canada
Tue, 19 Aug. - Tue, 26 Aug.
ORD
Chicago
LHR
London
AU$779 Return, found 3 hours ago
AU$779
Return
found 3 hours ago
Select Air Canada flight, departing Tue, 19 Aug. from Chicago to London, returning Tue, 26 Aug., priced at AU$779 found 3 hours ago
United
Sun, 17 Aug. - Tue, 26 Aug.
ORD
Chicago
LHR
London
AU$790 Return, found 3 hours ago
AU$790
Return
found 3 hours ago
Select United flight, departing Sun, 17 Aug. from Chicago to London, returning Tue, 26 Aug., priced at AU$790 found 3 hours ago
Virgin Atlantic
Mon, 25 Aug. - Wed, 3 Sep.
ORD
Chicago
LHR
London
AU$795 Return, found 8 hours ago
AU$795
Return
found 8 hours ago
Select Virgin Atlantic flight, departing Mon, 25 Aug. from Chicago to London, returning Wed, 3 Sep., priced at AU$795 found 8 hours ago
Delta
Tue, 19 Aug. - Tue, 26 Aug.
ORD
Chicago
LHR
London
AU$797 Return, found 3 hours ago
AU$797
Return
found 3 hours ago
Select Delta flight, departing Tue, 19 Aug. from Chicago to London, returning Tue, 26 Aug., priced at AU$797 found 3 hours ago
Icelandair
Fri, 27 Feb. - Tue, 10 Mar.
ORD
Chicago
LHR
London
AU$798 Return, found 6 days ago
AU$798
Return
found 6 days ago
Select Icelandair flight, departing Fri, 27 Feb. from Chicago to London, returning Tue, 10 Mar., priced at AU$798 found 6 days ago
Air Canada
Tue, 19 Aug. - Tue, 26 Aug.
ORD
Chicago
LHR
London
AU$806 Return, found 3 hours ago
AU$806
Return
found 3 hours ago
Select Air Canada flight, departing Tue, 19 Aug. from Chicago to London, returning Tue, 26 Aug., priced at AU$806 found 3 hours ago
United
Mon, 11 Aug. - Tue, 19 Aug.
ORD
Chicago
LHR
London
AU$808 Return, found 1 day ago
AU$808
Return
found 1 day ago
Select United flight, departing Mon, 11 Aug. from Chicago to London, returning Tue, 19 Aug., priced at AU$808 found 1 day ago
Icelandair
Fri, 27 Feb. - Tue, 10 Mar.
ORD
Chicago
LGW
London
AU$816 Return, found 6 days ago
AU$816
Return
found 6 days ago
Select Icelandair flight, departing Fri, 27 Feb. from Chicago to London, returning Tue, 10 Mar., priced at AU$816 found 6 days ago
Swiss International Air Lines
Sun, 17 Aug. - Tue, 26 Aug.
ORD
Chicago
LHR
London
AU$839 Return, found 3 hours ago
AU$839
Return
found 3 hours ago
Select Swiss International Air Lines flight, departing Sun, 17 Aug. from Chicago to London, returning Tue, 26 Aug., priced at AU$839 found 3 hours ago
British Airways
Mon, 25 Aug. - Wed, 3 Sep.
ORD
Chicago
LHR
London
AU$849 Return, found 8 hours ago
AU$849
Return
found 8 hours ago
Select British Airways flight, departing Mon, 25 Aug. from Chicago to London, returning Wed, 3 Sep., priced at AU$849 found 8 hours ago

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

February is typically the cheapest month to fly

From AU$712 - AU$1,119 per traveller.

Graph displaying average flight prices per month

Flight from Chicago to London route information
Origin airport
O'Hare Intl.
Destination airport
Heathrow
Airlines serving
Aer Lingus, Air Canada, American Airlines, Austrian Airlines, British Airways, Brussels Airlines, Delta, Finnair, ITA Airways, Iberia, Icelandair, KLM, Lufthansa, Swiss International Air Lines, Turkish Airlines, United, Virgin Atlantic
Return price
AU$778
Distance
6307 km

CHI to LON Flights

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London Flight Deals

London

Chicago to Heathrow
AU$778.10
Chicago to Gatwick
AU$815.25
Chicago Airports

Chicago

O'Hare Intl. to London
AU$778.10

Milwaukee

Madison

*Available to Expedia members.