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

Return flights

20 Sep - 04 Oct	FrenchBee
20 Sep - 15 Oct	Transavia France
30 Sep - 14 Oct	FrenchBee
26 Sep - 03 Oct	Vueling Airlines
18 Sep - 25 Sep	FrenchBee
30 Sep - 10 Oct	FrenchBee
26 Sep - 28 Sep	Vueling Airlines
30 Sep - 20 Oct	FrenchBee
22 Sep - 02 Oct	FrenchBee
22 Sep - 06 Oct	FrenchBee
25 Sep - 08 Oct	FrenchBee
29 Sep - 03 Oct	FrenchBee
19 Sep - 26 Sep	FrenchBee
15 Sep - 15 Sep	Iberia

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 623€

Return flights