Search and book London to Chicago flights
Popular flights and flight offers from London to Chicago
LHR – ORD
London - Chicago
Sat 10 May 2025 – Tue 13 May 2025
From
£449 Our cheapest flights from London to Chicago
LHR – ORD
London - Chicago
Sat 10 May 2025 – Tue 13 May 2025
From
£449 LHR – ORD
London - Chicago
Fri 9 May 2025 – Mon 12 May 2025
From
£449 LHR – ORD
London - Chicago
Tue 13 May 2025 – Thu 22 May 2025
From
£464 LHR – ORD
London - Chicago
Fri 16 May 2025 – Thu 22 May 2025
From
£464