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

Return flights

26 Dec - 02 Jan	Avianca	direct
31 Dec - 02 Jan	Avianca	direct
01 Dec - 15 Dec	Avianca	direct
01 Dec - 03 Dec	Avianca	direct
05 Dec - 07 Dec	Avianca	direct
12 Dec - 12 Dec	Avianca	direct
28 Dec - 01 Jan	Avianca	direct
29 Dec - 01 Jan	Avianca	direct
10 Dec - 13 Dec	Avianca	direct
11 Dec - 14 Dec	Avianca	direct
27 Dec - 01 Jan	Avianca	direct
09 Dec - 16 Dec	Avianca	direct
10 Dec - 21 Dec	Copa
11 Dec - 11 Dec	Copa
16 Dec - 20 Dec	Avianca	direct

Also check the deals for one-way flights from San Salvador to Guatemala 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 Guatemala City in December from $161

Return flights