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

Return flights

31 Dec - 17 Jan	Delta
01 Dec - 15 Dec	Avianca
01 Dec - 17 Dec	Avianca
04 Dec - 11 Dec	Avianca
04 Dec - 15 Dec	Avianca
07 Dec - 15 Dec	Avianca
04 Dec - 18 Dec	Avianca
05 Dec - 19 Dec	Avianca
02 Dec - 16 Dec	Avianca
01 Dec - 14 Dec	Avianca
08 Dec - 21 Dec	Avianca
01 Dec - 10 Jan	United
29 Dec - 08 Jan	United
26 Dec - 17 Jan	Avianca
29 Dec - 12 Jan	United
28 Dec - 25 Jan	Avianca
29 Dec - 09 Jan	United
30 Dec - 15 Jan	Avianca
01 Dec - 10 Jan	Air France	direct
27 Dec - 10 Jan	United

Also check the deals for one-way flights from Paris 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 Paris to San Jose in December from 734€

Return flights