Cheapest return flights from Chicago to London in October from 391€

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

Return flights

04 Oct - 15 Oct Spirit Airlines
08 Oct - 14 Oct Icelandair
01 Oct - 27 Nov Icelandair
01 Oct - 10 Nov Icelandair
01 Oct - 08 Oct Spirit Airlines
06 Oct - 09 Oct Spirit Airlines
02 Oct - 06 Oct Spirit Airlines
03 Oct - 06 Oct Spirit Airlines
01 Oct - 20 Oct Icelandair
01 Oct - 11 Oct Icelandair
16 Oct - 22 Oct Spirit Airlines
08 Oct - 15 Oct Spirit Airlines
28 Oct - 04 Nov Aer Lingus
24 Oct - 06 Nov Spirit Airlines
01 Oct - 09 Nov Icelandair
26 Oct - 05 Nov SWISS
30 Oct - 06 Nov SWISS
30 Oct - 04 Nov SWISS

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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