Cheapest return flights from Denver to London in January from $682

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

Return flights

21 Jan - 25 Jan Air Canada
27 Jan - 30 Jan Air Canada
23 Jan - 01 Feb Lufthansa
25 Jan - 10 Feb Icelandair
15 Jan - 17 Jan Air Canada
15 Jan - 18 Jan Air Canada
30 Jan - 21 Feb Brussels Airlines
26 Jan - 04 Feb Frontier Airlines
19 Jan - 26 Jan Icelandair
31 Jan - 05 Feb Icelandair
17 Jan - 24 Jan Air Canada
15 Jan - 25 Jan Air Canada

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

Powered by

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.

Book a cheap hotel in London

Cheap car rent in London

Feel free to contact us with any feedback or request another flight research.