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Cheap flights from Chicago (CHI) to London (LCY)

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How to find the cheapest flight from Chicago (CHI) to London (LCY)

How to find the cheapest flight from Chicago (CHI) to London (LCY)
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How to find the cheapest flight from Chicago (CHI) to London (LCY)
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How to find the cheapest flight from Chicago (CHI) to London (LCY)
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Cheap flights from Chicago to London in March , April 2026

16 Mar - 02 Apr $ 696.00
CHI
Chicago
KLM Royal Dutch Airlines
1 STOPS
LCY
London
LCY
London
KLM Royal Dutch Airlines
1 STOPS
CHI
Chicago
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01 Mar - 10 Apr $ 1,104.00
CHI
Chicago
Swiss International Air Lines
1 STOPS
LCY
London
LCY
London
Swiss International Air Lines
1 STOPS
CHI
Chicago
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02 Mar - 10 Apr $ 1,630.00
CHI
Chicago
Aer Lingus
1 STOPS
LCY
London
LCY
London
Aer Lingus
1 STOPS
CHI
Chicago
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Last minute flights from Chicago to London

24 Mar - 31 Mar $ 839.00
CHI
Chicago
United Airlines
1 STOPS
LCY
London
LCY
London
United Airlines
1 STOPS
CHI
Chicago
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01 Mar - 01 Apr $ 916.00
CHI
Chicago
Swiss International Air Lines
1 STOPS
LCY
London
LCY
London
Swiss International Air Lines
1 STOPS
CHI
Chicago
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08 Mar - 31 Mar $ 1,674.00
CHI
Chicago
Aer Lingus
1 STOPS
LCY
London
LCY
London
Aer Lingus
1 STOPS
CHI
Chicago
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One-way flights to London from Chicago

6:05 PM - 12:10 PM
United Airlines
2 Stops
13h 50m
CHI - LCY
$ 432
Kiwi
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4:05 PM - 8:35 AM
Lufthansa
1 Stops
11h
CHI - LCY
$ 436
Kiwi
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6:50 PM - 12:10 PM
Swiss International Air Lines
1 Stops
12h 5m
CHI - LCY
$ 436
Kiwi
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How to find the cheapest flight from Chicago (CHI) to London (LCY)

Related info for your journey
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How to find the cheapest flight from Chicago (CHI) to London (LCY)
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How to find the cheapest flight from Chicago (CHI) to London (LCY)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.