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

Return flights

11 Dec - 18 Dec	Avianca	direct
11 Dec - 15 Dec	Avianca	direct
14 Dec - 21 Dec	Avianca
11 Dec - 06 Jan	Avianca
15 Dec - 22 Dec	Avianca
17 Dec - 24 Dec	Avianca
10 Dec - 05 Jan	Avianca
11 Dec - 05 Jan	Avianca
11 Dec - 21 Dec	Avianca
29 Dec - 02 Jan	Avianca
24 Dec - 27 Dec	Avianca	direct
17 Dec - 27 Dec	Avianca
28 Dec - 02 Jan	Avianca
22 Dec - 28 Dec	Avianca	direct
22 Dec - 27 Dec	Avianca	direct
11 Dec - 04 Jan	Avianca

Also check the deals for one-way flights from San Salvador to Quito 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 Quito in December from 209€

Return flights