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

Return flights

05 Dec - 07 Dec	Avianca
03 Dec - 07 Dec	Avianca
23 Dec - 07 Jan	Avianca
07 Dec - 17 Dec	Avianca
26 Dec - 31 Dec	Avianca
07 Dec - 17 Dec	Avianca	direct
31 Dec - 04 Jan	Avianca
21 Dec - 28 Dec	Avianca
26 Dec - 30 Dec	Avianca
19 Dec - 21 Dec	Avianca
25 Dec - 30 Dec	Avianca
18 Dec - 22 Dec	Avianca

Also check the deals for one-way flights from San Salvador to Miami 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 Miami in December from 36€

Return flights