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

Return flights

28 Dec - 29 Jan	Delta
28 Dec - 18 Jan	Delta
24 Dec - 24 Jan	Delta
30 Dec - 26 Jan	Delta
30 Dec - 14 Jan	Delta
24 Dec - 29 Jan	Delta
22 Dec - 29 Dec	Iberia
21 Dec - 28 Dec	Iberia
29 Dec - 24 Jan	Air Transat
24 Dec - 12 Jan	Delta
29 Dec - 25 Jan	Delta
25 Dec - 20 Jan	Iberia
24 Dec - 27 Dec	Delta
23 Dec - 25 Dec	Delta
24 Dec - 31 Dec	Iberia
25 Dec - 29 Dec	Iberia
27 Dec - 31 Dec	United
26 Dec - 27 Dec	Iberia
27 Dec - 31 Dec	Air France	direct
21 Dec - 29 Dec	Delta

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 725€

Return flights