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Popular flights and flight offers from London to Chicago

LHR – ORD
London - Chicago
Thu 24 Apr 2025 – Sun 27 Apr 2025
From
£431
LHR – ORD
London - Chicago
Wed 23 Apr 2025 – Sun 27 Apr 2025
From
£431
LHR – ORD
London - Chicago
Fri 14 Mar 2025 – Mon 17 Mar 2025
From
£451
LHR – ORD
London - Chicago
Sun 2 Mar 2025 – Sun 9 Mar 2025
From
£451
LHR – ORD
London - Chicago
Thu 6 Mar 2025 – Sun 9 Mar 2025
From
£451
LHR – ORD
London - Chicago
Tue 11 Mar 2025 – Sun 16 Mar 2025
From
£451

Our cheapest flights from London to Chicago

LHR – ORD
London - Chicago
Thu 24 Apr 2025 – Sun 27 Apr 2025
From
£431
Book now
LHR – ORD
London - Chicago
Wed 23 Apr 2025 – Sun 27 Apr 2025
From
£431
Book now
LHR – ORD
London - Chicago
Fri 14 Mar 2025 – Mon 17 Mar 2025
From
£451
Book now
LHR – ORD
London - Chicago
Sun 2 Mar 2025 – Sun 9 Mar 2025
From
£451
Book now

Popular routes and flight deals