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

Return flights

09 Sep - 16 Sep	jetBlue
08 Sep - 15 Sep	Avianca
25 Sep - 11 Oct	jetBlue
05 Sep - 26 Sep	Spirit Airlines
03 Sep - 10 Sep	Avianca
04 Sep - 28 Sep	Spirit Airlines
02 Sep - 01 Oct	Spirit Airlines
29 Sep - 08 Oct	Air France	direct
18 Sep - 01 Oct	Air France	direct
17 Sep - 01 Oct	Air France	direct
24 Sep - 13 Oct	Air France	direct
26 Sep - 13 Oct	Air France	direct
04 Sep - 17 Sep	Air France
11 Sep - 18 Sep	Air France
24 Sep - 05 Oct	Air France
13 Sep - 20 Sep	Air France
26 Sep - 11 Oct	Iberia
26 Sep - 11 Oct	Air France	direct
05 Sep - 17 Sep	Condor
05 Sep - 17 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 609€

Return flights