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

Return flights

16 Jan - 23 Jan	Flair Airlines
24 Jan - 07 Feb	Flair Airlines
19 Jan - 03 Feb	Flair Airlines
16 Jan - 30 Jan	Flair Airlines
17 Jan - 20 Jan	Air Canada
23 Jan - 05 Feb	Flair Airlines
16 Jan - 29 Jan	WestJet
19 Jan - 29 Jan	Flair Airlines
23 Jan - 30 Jan	Flair Airlines
18 Jan - 23 Jan	WestJet
16 Jan - 25 Jan	Iberojet
08 Jan - 15 Jan	Spirit Airlines
19 Jan - 02 Feb	Flair Airlines
23 Jan - 09 Feb	Flair Airlines
15 Jan - 30 Jan	Spirit Airlines
21 Jan - 11 Feb	WestJet
29 Jan - 14 Feb	Aeromexico
28 Jan - 08 Feb	jetBlue
15 Jan - 01 Feb	WestJet
28 Jan - 08 Feb	Virgin Atlantic	direct

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 $653

Return flights