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

Return flights

01 Dec - 08 Dec	easyJet
11 Dec - 24 Dec	easyJet
08 Dec - 14 Dec	easyJet
01 Dec - 14 Dec	easyJet
07 Dec - 14 Dec	easyJet
15 Dec - 21 Dec	easyJet
15 Dec - 28 Dec	easyJet
23 Dec - 07 Jan	easyJet
17 Dec - 28 Dec	easyJet
19 Dec - 28 Dec	easyJet
25 Dec - 09 Jan	easyJet

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 $1164

Return flights