Cheapest return flights from Denver to London in January from $478

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

Return flights

14 Jan - 31 Jan Icelandair
18 Jan - 07 Feb Icelandair
14 Jan - 19 Jan Icelandair
14 Jan - 07 Feb Icelandair
12 Jan - 26 Jan Icelandair
19 Jan - 24 Jan Icelandair
19 Jan - 23 Jan Icelandair
21 Jan - 14 Feb Icelandair
05 Jan - 31 Jan Icelandair
06 Jan - 31 Jan Icelandair
23 Jan - 03 Feb Icelandair
12 Jan - 16 Jan Icelandair
18 Jan - 25 Jan Icelandair
11 Jan - 16 Jan Icelandair
15 Jan - 05 Feb Iberia direct
15 Jan - 06 Feb Iberia direct
17 Jan - 10 Feb British Airways direct
17 Jan - 09 Feb Air Canada
14 Jan - 07 Feb British Airways direct
18 Jan - 07 Feb British Airways direct

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

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