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

Return flights

24 Dec - 31 Dec	Avianca	direct
23 Dec - 01 Jan	Avianca
20 Dec - 07 Jan	Avianca
21 Dec - 05 Jan	Avianca
27 Dec - 08 Jan	Avianca
29 Dec - 19 Jan	Avianca
22 Dec - 29 Dec	Avianca	direct
20 Dec - 30 Dec	Avianca
23 Dec - 30 Dec	Avianca
24 Dec - 27 Dec	Avianca	direct
30 Dec - 03 Jan	Avianca	direct
29 Dec - 04 Jan	Avianca	direct
25 Dec - 03 Jan	Avianca	direct
25 Dec - 25 Dec	Avianca	direct
23 Dec - 29 Dec	Avianca
27 Dec - 03 Jan	Avianca
20 Dec - 07 Jan	Avianca	direct
25 Dec - 30 Dec	Avianca
21 Dec - 24 Dec	Avianca
21 Dec - 24 Dec	Avianca	direct

Also check the deals for one-way flights from San Salvador 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 San Salvador to Mexico City in December from 200€

Return flights