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

Return flights

06 Dec - 09 Dec	Delta
04 Dec - 11 Dec	easyJet
04 Dec - 08 Dec	easyJet
27 Dec - 17 Jan	jetBlue
05 Dec - 13 Dec	easyJet
10 Dec - 27 Dec	Air Canada
05 Dec - 23 Dec	easyJet
11 Dec - 09 Jan	Vueling Airlines
03 Dec - 05 Dec	Vueling Airlines
29 Dec - 07 Jan	jetBlue
16 Dec - 30 Dec	United
01 Dec - 10 Dec	Air Transat
13 Dec - 08 Jan	jetBlue
08 Dec - 23 Dec	easyJet
28 Dec - 11 Jan	Air Transat
29 Dec - 24 Jan	Aer Lingus
28 Dec - 12 Jan	Air Transat
31 Dec - 12 Jan	easyJet
24 Dec - 16 Jan	United
24 Dec - 19 Jan	Air Canada

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 726€

Return flights