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

Return flights

05 Dec - 08 Dec	Avianca
04 Dec - 07 Dec	Avianca
24 Dec - 31 Dec	Copa
06 Dec - 08 Dec	Avianca
08 Dec - 29 Dec	Avianca
22 Dec - 29 Dec	Avianca
24 Dec - 01 Jan	Avianca
11 Dec - 01 Jan	Avianca
04 Dec - 07 Dec	Avianca	direct
25 Dec - 01 Jan	Avianca
17 Dec - 23 Dec	Avianca
27 Dec - 03 Jan	Avianca
29 Dec - 03 Jan	Avianca
28 Dec - 04 Jan	Avianca
25 Dec - 04 Jan	Avianca
30 Dec - 04 Jan	Avianca

Also check the deals for one-way flights from Quito to San Jose 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 Quito to San Jose in December from $271

Return flights