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

Return flights

26 Sep - 11 Oct	Spirit Airlines
22 Sep - 30 Sep	Spirit Airlines
27 Sep - 12 Oct	Spirit Airlines
21 Sep - 15 Oct	Copa
24 Sep - 06 Oct	Volaris Costa Rica
19 Sep - 11 Oct	Avianca
25 Sep - 02 Oct	Copa
26 Sep - 12 Oct	Avianca
17 Sep - 22 Sep	Avianca
15 Sep - 02 Oct	Copa
15 Sep - 21 Sep	Copa
16 Sep - 21 Sep	Copa
18 Sep - 26 Sep	Avianca
18 Sep - 25 Sep	Copa
18 Sep - 01 Oct	Air France
20 Sep - 28 Oct	Air France
18 Sep - 29 Sep	Air France
18 Sep - 25 Sep	Air France	direct
18 Sep - 26 Sep	Air France	direct
17 Sep - 22 Sep	Air France	direct

Also check the deals for one-way flights from San Jose to Paris 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 San Jose to Paris in September from 677€

Return flights