Search and book London to Chicago flights
Popular flights and flight offers from London to Chicago
LHR – ORD
London - Chicago
Fri 20 Jun 2025 – Mon 23 Jun 2025
From
£503 Our cheapest flights from London to Chicago
LHR – ORD
London - Chicago
Fri 20 Jun 2025 – Mon 23 Jun 2025
From
£503