Cheapest return flights from Chicago to London in October from 576€

Best time to book flights for Chicago (ORD) to London (LHR) flights at AirHint

AirHint found the following cheapest return flights from Chicago (ORD) to London (LHR) in October 2025 (see full year).

Return flights

08 Oct - 21 Oct TAP
08 Oct - 21 Oct Finnair direct
18 Oct - 01 Nov TAP
10 Oct - 13 Oct Turkish Airlines
18 Oct - 01 Nov Finnair direct
10 Oct - 13 Oct American Airlines direct
18 Oct - 25 Oct United
18 Oct - 25 Oct United direct

Also check the deals for one-way flights from Chicago to London in October.

Skyscanner

The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

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