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

Return flights

07 Oct - 14 Oct	Brussels Airlines
04 Oct - 06 Oct	Norse Atlantic Airways
09 Oct - 16 Oct	Norse Atlantic Airways
28 Oct - 11 Nov	SWISS
27 Oct - 10 Nov	SWISS
31 Oct - 14 Nov	SWISS
02 Oct - 19 Oct	Norse Atlantic Airways
10 Oct - 24 Oct	Icelandair
09 Oct - 14 Oct	Norse Atlantic Airways
09 Oct - 15 Oct	Norse Atlantic Airways
09 Oct - 21 Oct	Norse Atlantic Airways
28 Oct - 02 Nov	Scandinavian Airlines
27 Oct - 31 Oct	Delta
23 Oct - 03 Nov	Delta
27 Oct - 15 Nov	Delta
28 Oct - 16 Nov	Delta
26 Oct - 24 Nov	Delta
30 Oct - 06 Nov	Avianca
03 Oct - 17 Oct	Avianca
23 Oct - 02 Nov	Delta

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 $747

Return flights