Search and book London to Chicago flights
Popular flights and flight offers from London to Chicago
LHR – ORD
London - Chicago
Fri 7 Nov 2025 – Mon 10 Nov 2025
From
£432 Our cheapest flights from London to Chicago
LHR – ORD
London - Chicago
Fri 7 Nov 2025 – Mon 10 Nov 2025
From
£432