Cheapest return flights from Chicago to London in October from $626

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

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

Return flights

10 Oct - 15 Oct TAP
06 Oct - 18 Oct British Airways
07 Oct - 17 Oct Turkish Airlines
08 Oct - 12 Oct Turkish Airlines
30 Oct - 07 Nov Turkish Airlines
05 Oct - 12 Oct Icelandair
14 Oct - 26 Oct SWISS
24 Oct - 02 Nov Turkish Airlines
26 Oct - 02 Nov Icelandair

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

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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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