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

Return flights

01 Oct - 17 Oct	SWISS
06 Oct - 14 Oct	Delta
13 Oct - 23 Oct	Delta
06 Oct - 24 Oct	Delta
01 Oct - 11 Oct	Delta
16 Oct - 29 Oct	Delta
04 Oct - 18 Oct	Delta
23 Oct - 30 Oct	Delta
01 Oct - 14 Oct	Delta
02 Oct - 15 Oct	Delta
31 Oct - 09 Nov	Delta
26 Oct - 08 Nov	Avianca
24 Oct - 03 Nov	Avianca
25 Oct - 04 Nov	Avianca
24 Oct - 02 Nov	Avianca
15 Oct - 05 Nov	Iberia
31 Oct - 30 Nov	Iberia
27 Oct - 10 Nov	KLM
31 Oct - 09 Nov	Air France	direct
26 Oct - 08 Nov	Air France	direct

Also check the deals for one-way flights from Paris to San Jose in October.

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 October from 686€

Return flights