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

Return flights

08 Dec - 14 Dec	easyJet
04 Dec - 29 Dec	jetBlue
04 Dec - 14 Dec	Icelandair
04 Dec - 12 Dec	Icelandair
04 Dec - 08 Dec	Delta
02 Dec - 07 Dec	Icelandair
01 Dec - 17 Dec	Aer Lingus
08 Dec - 19 Dec	Avianca
04 Dec - 18 Dec	Avianca
03 Dec - 13 Dec	Avianca
15 Dec - 12 Jan	United
31 Dec - 16 Jan	Avianca
31 Dec - 11 Jan	Air Canada
16 Dec - 06 Jan	Air Canada
15 Dec - 11 Jan	Air Canada
30 Dec - 10 Jan	Air Canada
28 Dec - 18 Jan	Avianca
24 Dec - 13 Jan	Air Canada
25 Dec - 13 Jan	Air Canada
27 Dec - 17 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 684€

Return flights