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

Return flights

27 Feb - 05 Mar	Icelandair
28 Feb - 07 Mar	Icelandair
24 Feb - 28 Feb	Icelandair
15 Feb - 22 Feb	Austrian Airlines
18 Feb - 25 Feb	Brussels Airlines
16 Feb - 17 Mar	Air Canada
18 Feb - 24 Feb	Air Canada
17 Feb - 24 Feb	Air Canada
20 Feb - 25 Feb	jetBlue
18 Feb - 23 Feb	jetBlue
14 Feb - 22 Feb	Finnair
19 Feb - 28 Feb	jetBlue
11 Feb - 24 Feb	Finnair
23 Feb - 01 Mar	Finnair
15 Feb - 02 Mar	United
16 Feb - 17 Mar	British Airways	direct
28 Feb - 07 Mar	American Airlines	direct
23 Feb - 01 Mar	American Airlines	direct
26 Feb - 03 Mar	British Airways	direct
22 Feb - 07 Mar	Air Canada

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 $503

Return flights