Cheapest return flights from Chicago to London in October from $565

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

12 Oct - 20 Oct Scandinavian Airlines
20 Oct - 27 Oct Scandinavian Airlines
07 Oct - 14 Oct Scandinavian Airlines
03 Oct - 20 Oct Icelandair
03 Oct - 18 Oct Icelandair
10 Oct - 17 Oct Icelandair
07 Oct - 15 Oct Scandinavian Airlines
21 Oct - 28 Oct Scandinavian Airlines
17 Oct - 27 Oct Icelandair
16 Oct - 23 Oct Icelandair
26 Oct - 02 Nov Icelandair
29 Oct - 05 Nov Delta
28 Oct - 04 Nov Delta
27 Oct - 03 Nov Delta
31 Oct - 07 Nov Delta
30 Oct - 06 Nov Delta
26 Oct - 02 Nov British Airways direct
31 Oct - 03 Nov Delta
30 Oct - 02 Nov Delta
29 Oct - 01 Nov Delta

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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