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

Return flights

04 Dec - 17 Dec	Wizz Air
06 Dec - 21 Dec	Ryanair
08 Dec - 13 Dec	Ryanair
15 Dec - 29 Dec	Ryanair
07 Dec - 20 Dec	easyJet
11 Dec - 20 Dec	easyJet
18 Dec - 25 Dec	easyJet
15 Dec - 20 Dec	Ryanair
08 Dec - 14 Dec	Ryanair
08 Dec - 17 Dec	Ryanair
26 Dec - 10 Jan	Ryanair
22 Dec - 03 Jan	easyJet
10 Dec - 20 Jan	easyJet

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

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Cheapest return flights from London to Cancun in December from 975€

Return flights