AirHint found the following cheapest return flights from Cancun (CUN) to London (LGW) in December 2025 (see full year).

Return flights

25 Dec - 25 Jan	TUI
30 Dec - 06 Jan	TAP
25 Dec - 06 Jan	TUI
25 Dec - 14 Jan	TUI
25 Dec - 11 Jan	TUI
27 Dec - 25 Jan	TUI.nl
26 Dec - 11 Jan	Iberojet
30 Dec - 07 Jan	WORLD2FLY
29 Dec - 11 Jan	Iberojet
25 Dec - 07 Jan	TUI
25 Dec - 31 Dec	Condor
27 Dec - 30 Dec	TAP
25 Dec - 31 Dec	TUI	direct
25 Dec - 26 Dec	Flair Airlines
27 Dec - 30 Dec	British Airways	direct

Also check the deals for one-way flights from Cancun to London in December.

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

Cheapest return flights from Cancun to London in December from 794€

Return flights