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

Return flights

12 Jan - 25 Jan	Icelandair
12 Jan - 18 Jan	Icelandair
14 Jan - 21 Jan	Icelandair
04 Jan - 16 Jan	Icelandair
05 Jan - 18 Jan	Icelandair
04 Jan - 15 Jan	Icelandair
05 Jan - 16 Jan	Icelandair
14 Jan - 28 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 441€

Return flights