AirHint found the following cheapest return flights from Paris (PAR) to San Jose (SJO) in September 2026 (see full year).

Return flights

04 Sep - 09 Oct	Air Transat
03 Sep - 20 Sep	Avianca
04 Sep - 20 Sep	Avianca
01 Sep - 15 Sep	Avianca
02 Sep - 16 Sep	Avianca
03 Sep - 19 Sep	Avianca
05 Sep - 23 Sep	Avianca
12 Sep - 03 Oct	Avianca
03 Sep - 10 Oct	Avianca
04 Sep - 10 Oct	Avianca
04 Sep - 20 Sep	Air France	direct
02 Sep - 16 Sep	Air France	direct
04 Sep - 09 Oct	Air France	direct
04 Sep - 10 Oct	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 729€

Return flights