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

Return flights

07 Nov - 09 Nov	Scandinavian Airlines
15 Nov - 17 Nov	Scandinavian Airlines
02 Nov - 10 Nov	Air Canada
06 Nov - 14 Nov	Icelandair
07 Nov - 14 Nov	Icelandair
11 Nov - 16 Nov	Icelandair
06 Nov - 10 Nov	Icelandair
03 Nov - 10 Nov	Icelandair
18 Nov - 25 Nov	Icelandair
28 Nov - 05 Dec	Icelandair
05 Nov - 13 Nov	Delta
24 Nov - 01 Dec	SWISS
19 Nov - 01 Dec	Icelandair
26 Nov - 01 Dec	Icelandair
28 Nov - 05 Dec	British Airways	direct
21 Nov - 07 Dec	Icelandair
21 Nov - 07 Dec	British Airways	direct

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

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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Cheapest return flights from Chicago to London in November from 366€

Return flights