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

Return flights

06 Dec - 08 Dec	Viva Aerobus
06 Dec - 10 Dec	Viva Aerobus
04 Dec - 08 Dec	Viva Aerobus
08 Dec - 10 Dec	Viva Aerobus
04 Dec - 05 Dec	Viva Aerobus
04 Dec - 06 Dec	Viva Aerobus
04 Dec - 10 Dec	Viva Aerobus
06 Dec - 12 Dec	Viva Aerobus
06 Dec - 07 Dec	Viva Aerobus
01 Dec - 08 Dec	Viva Aerobus
08 Dec - 07 Jan	Viva Aerobus
15 Dec - 01 Jan	Viva Aerobus
12 Dec - 01 Jan	Viva Aerobus
13 Dec - 01 Jan	Viva Aerobus
21 Dec - 01 Jan	Viva Aerobus
22 Dec - 01 Jan	Viva Aerobus
21 Dec - 09 Jan	Viva Aerobus
22 Dec - 09 Jan	Viva Aerobus
18 Dec - 01 Jan	Viva Aerobus
21 Dec - 07 Jan	Viva Aerobus

Also check the deals for one-way flights from Los Angeles 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 Los Angeles to Mexico City in December from $246

Return flights