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

Return flights

23 Dec - 30 Dec	Aeromexico
20 Dec - 26 Dec	Avianca
19 Dec - 25 Dec	Avianca
23 Dec - 27 Dec	Avianca	direct
20 Dec - 27 Dec	Avianca	direct
21 Dec - 24 Dec	Avianca
19 Dec - 26 Dec	Avianca
31 Dec - 07 Jan	Aeromexico
24 Dec - 09 Jan	Aeromexico
20 Dec - 04 Jan	Copa
25 Dec - 10 Jan	Avianca
25 Dec - 01 Jan	Avianca
25 Dec - 01 Jan	Avianca	direct
23 Dec - 30 Dec	Avianca	direct
20 Dec - 23 Dec	Avianca	direct
25 Dec - 10 Jan	Avianca	direct
26 Dec - 03 Jan	Avianca
25 Dec - 02 Jan	Copa
25 Dec - 30 Dec	Avianca	direct

Also check the deals for one-way flights from San Salvador 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 San Salvador to Cancun in December from 248€

Return flights