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

Return flights

31 Dec - 14 Jan	Wizz Air
06 Dec - 13 Dec	Ryanair
30 Dec - 14 Jan	easyJet
09 Dec - 08 Jan	easyJet
24 Dec - 31 Jan	Ryanair
07 Dec - 12 Dec	easyJet
09 Dec - 22 Dec	easyJet
07 Dec - 24 Dec	Wizz Air
16 Dec - 07 Jan	Ryanair
30 Dec - 20 Jan	easyJet
05 Dec - 26 Dec	Ryanair
09 Dec - 23 Dec	easyJet
07 Dec - 25 Dec	Wizz Air
08 Dec - 31 Dec	easyJet
06 Dec - 23 Dec	easyJet
24 Dec - 30 Dec	Wizz Air
29 Dec - 07 Jan	Wizz Air
31 Dec - 09 Jan	Ryanair
17 Dec - 09 Jan	Wizz Air Malta
23 Dec - 07 Jan	Wizz Air Malta

Also check the deals for one-way flights from London to Mexico City 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 Mexico City in December from $1140

Return flights