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

Return flights

06 Feb - 14 Feb	Icelandair
05 Feb - 05 Mar	Icelandair
11 Feb - 24 Feb	Icelandair
11 Feb - 23 Feb	Icelandair
11 Feb - 18 Feb	Icelandair
17 Feb - 24 Feb	Aer Lingus
05 Feb - 10 Feb	Icelandair
04 Feb - 10 Feb	Spirit Airlines
26 Feb - 01 Mar	Spirit Airlines
15 Feb - 20 Feb	Icelandair
23 Feb - 01 Mar	Scandinavian Airlines
23 Feb - 28 Feb	Icelandair
27 Feb - 02 Mar	Frontier Airlines
06 Feb - 08 Feb	Icelandair
26 Feb - 02 Mar	Spirit Airlines
22 Feb - 01 Mar	Icelandair
12 Feb - 01 Mar	Spirit Airlines
19 Feb - 02 Mar	SWISS
17 Feb - 01 Mar	Icelandair
26 Feb - 30 Mar	Spirit Airlines

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

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 February from 391€

Return flights