AirHint found the following cheapest return flights from Chicago (ORD) to London (LGW) in January 2026 (see full year).

Return flights

14 Jan - 19 Jan	Icelandair
09 Jan - 11 Jan	Icelandair
12 Jan - 19 Jan	SWISS
20 Jan - 03 Feb	SWISS
27 Jan - 10 Feb	SWISS
27 Jan - 17 Feb	SWISS
20 Jan - 05 Feb	SWISS
14 Jan - 27 Jan	SWISS
14 Jan - 28 Jan	SWISS
28 Jan - 11 Feb	SWISS
28 Jan - 18 Feb	SWISS
18 Jan - 02 Feb	SWISS
28 Jan - 03 Feb	SWISS
14 Jan - 04 Feb	SWISS
14 Jan - 02 Feb	SWISS
20 Jan - 30 Jan	SWISS
14 Jan - 25 Jan	SWISS
18 Jan - 24 Jan	SWISS
14 Jan - 30 Jan	SWISS
09 Jan - 21 Jan	SWISS

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

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 January from 418€

Return flights