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
11 Sep - 16 Sep	FrenchBee
06 Sep - 10 Sep	FrenchBee
11 Sep - 23 Sep	FrenchBee
25 Sep - 06 Oct	Iberia
10 Sep - 31 Oct	Iberia
17 Sep - 31 Oct	Iberia
19 Sep - 30 Sep	Iberia
08 Sep - 22 Sep	Iberia
08 Sep - 21 Sep	Iberia
03 Sep - 24 Sep	Iberia
12 Sep - 24 Sep	Iberia
12 Sep - 28 Sep	Iberia
22 Sep - 05 Oct	Iberia
20 Sep - 01 Oct	Iberia
20 Sep - 03 Oct	Iberia
15 Sep - 30 Sep	Iberia
22 Sep - 06 Oct	Iberia
17 Sep - 02 Oct	Transavia France
29 Sep - 10 Oct	Vueling Airlines

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 $761

Return flights