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

Return flights

09 Dec - 09 Jan	Delta
07 Dec - 24 Dec	Delta
30 Dec - 13 Jan	Delta
05 Dec - 15 Dec	SWISS
14 Dec - 22 Dec	Air Canada
27 Dec - 16 Jan	United
09 Dec - 20 Dec	Air Canada
28 Dec - 17 Jan	United
31 Dec - 09 Jan	United
05 Dec - 20 Dec	Avianca
09 Dec - 20 Dec	Air France	direct
05 Dec - 20 Dec	Air France	direct
26 Dec - 26 Dec	Avianca
05 Dec - 15 Dec	Air France	direct
31 Dec - 10 Jan	British Airways
15 Dec - 31 Dec	United
28 Dec - 10 Jan	United
27 Dec - 07 Jan	United
26 Dec - 15 Jan	Avianca
26 Dec - 13 Jan	Avianca

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 727€

Return flights