Cheapest return flights from Chicago to London in October from $620

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

15 Oct - 29 Oct Icelandair
07 Oct - 15 Oct Icelandair
15 Oct - 22 Oct Icelandair
24 Oct - 28 Oct TAP
04 Oct - 10 Oct Turkish Airlines
04 Oct - 17 Oct Turkish Airlines
10 Oct - 15 Oct British Airways
16 Oct - 25 Oct Turkish Airlines
18 Oct - 01 Nov Turkish Airlines
16 Oct - 24 Oct Turkish Airlines
17 Oct - 24 Oct Turkish Airlines
30 Oct - 03 Nov Turkish Airlines
30 Oct - 02 Nov Turkish Airlines

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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