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

Return flights

26 Sep - 04 Oct	Vueling Airlines
18 Sep - 22 Sep	Fly Play
27 Sep - 16 Oct	FrenchBee
20 Sep - 03 Oct	Transavia France
21 Sep - 28 Sep	Wizz Air Malta
20 Sep - 28 Sep	Transavia France
25 Sep - 08 Oct	Icelandair
27 Sep - 10 Oct	FrenchBee
30 Sep - 15 Oct	FrenchBee
18 Sep - 08 Oct	Avianca
27 Sep - 06 Oct	easyJet
30 Sep - 19 Oct	FrenchBee
30 Sep - 20 Oct	FrenchBee
21 Sep - 26 Sep	Wizz Air Malta
22 Sep - 29 Sep	Avianca
22 Sep - 26 Sep	Norse Atlantic Airways
21 Sep - 24 Sep	Avianca
19 Sep - 26 Sep	Air France	direct
20 Sep - 22 Sep	Air France	direct
22 Sep - 26 Sep	Air France	direct

Also check the deals for one-way flights from Paris to San Jose in September.

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 September from 631€

Return flights