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

Return flights

12 Dec - 15 Dec	Spirit Airlines
12 Dec - 23 Dec	Spirit Airlines
15 Dec - 31 Dec	Spirit Airlines
12 Dec - 15 Dec	Frontier Airlines	direct
26 Dec - 31 Dec	Copa
28 Dec - 10 Jan	Spirit Airlines
22 Dec - 31 Dec	Spirit Airlines
15 Dec - 31 Dec	Frontier Airlines	direct
22 Dec - 31 Dec	Frontier Airlines	direct
23 Dec - 11 Jan	Spirit Airlines
15 Dec - 03 Jan	Spirit Airlines
26 Dec - 31 Dec	Frontier Airlines	direct
20 Dec - 05 Jan	Copa
12 Dec - 23 Dec	Delta	direct
28 Dec - 10 Jan	Delta	direct
23 Dec - 11 Jan	Delta	direct
15 Dec - 03 Jan	Delta	direct
20 Dec - 05 Jan	Delta	direct

Also check the deals for one-way flights from Atlanta to San Salvador 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 Atlanta to San Salvador in December from $220

Return flights