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Popular flights and flight offers from Chicago to London

ORD – LHR
Chicago - London
Sun 20 Jul 2025 – Wed 30 Jul 2025
From
1,019 USD

Our cheapest flights from Chicago to London

ORD – LHR
Chicago - London
Sun 20 Jul 2025 – Wed 30 Jul 2025
From
1,019 USD

Popular routes and flight deals