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

Return flights

29 Dec - 05 Jan	Avianca	direct
05 Dec - 12 Dec	Copa
15 Dec - 29 Dec	Copa
30 Dec - 06 Jan	Copa
25 Dec - 01 Jan	Avianca	direct
27 Dec - 04 Jan	Copa
25 Dec - 29 Dec	Avianca
19 Dec - 22 Dec	Copa
25 Dec - 03 Jan	Avianca
15 Dec - 29 Dec	Avianca	direct
19 Dec - 22 Dec	Avianca	direct
30 Dec - 16 Jan	Spirit Airlines
30 Dec - 14 Jan	Spirit Airlines
30 Dec - 15 Jan	Spirit Airlines
08 Dec - 28 Dec	Spirit Airlines
29 Dec - 16 Jan	Spirit Airlines
26 Dec - 02 Jan	Avianca	direct
08 Dec - 26 Dec	Spirit Airlines
08 Dec - 11 Dec	Spirit Airlines
08 Dec - 25 Dec	Spirit Airlines

Also check the deals for one-way flights from San Jose to San Juan 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 Jose to San Juan in December from 200€

Return flights