AirHint found the following cheapest return flights from Denver (DEN) to London (LHR) in February 2026 (see full year).

Return flights

24 Feb - 04 Mar	Icelandair
26 Feb - 04 Mar	Icelandair
27 Feb - 06 Mar	Icelandair
23 Feb - 04 Mar	Icelandair
23 Feb - 01 Mar	Icelandair
24 Feb - 01 Mar	Icelandair
19 Feb - 22 Feb	Brussels Airlines
15 Feb - 02 Mar	Brussels Airlines
25 Feb - 04 Mar	Air Canada
11 Feb - 18 Feb	Air Canada
21 Feb - 04 Mar	Lufthansa
22 Feb - 04 Mar	Lufthansa
19 Feb - 23 Feb	United
15 Feb - 26 Feb	United
11 Feb - 24 Feb	United
11 Feb - 18 Feb	Lufthansa	direct
10 Feb - 15 Feb	Lufthansa	direct
13 Feb - 16 Feb	Lufthansa	direct
18 Feb - 25 Feb	Air Canada
12 Feb - 19 Feb	United

Also check the deals for one-way flights from Denver 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 Denver to London in February from 418€

Return flights