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

Return flights

30 Jan - 23 Feb	Frontier Airlines
19 Jan - 27 Jan	Flair Airlines
23 Jan - 05 Feb	Air Europa
26 Jan - 29 Jan	Iberojet
26 Jan - 06 Feb	Iberojet
26 Jan - 02 Feb	Iberojet
22 Jan - 29 Jan	Finnair
16 Jan - 19 Jan	Finnair
18 Jan - 25 Jan	Finnair
17 Jan - 18 Jan	Finnair
25 Jan - 29 Jan	Flair Airlines
18 Jan - 01 Feb	Finnair
16 Jan - 27 Feb	TAP
20 Jan - 29 Jan	Aer Lingus
28 Jan - 08 Feb	jetBlue
31 Jan - 02 Feb	Finnair
30 Jan - 09 Feb	Iberojet
19 Jan - 28 Jan	Air Caraibes
20 Jan - 26 Jan	Aer Lingus
25 Jan - 18 Feb	Virgin Atlantic

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

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 Cancun to London in January from $773

Return flights