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

Return flights

13 May - 23 May	Delta
08 May - 23 May	Delta
02 May - 16 May	Iberia
22 May - 29 May	Air Transat
08 May - 25 May	Air Transat
11 May - 18 May	Air Transat
01 May - 12 May	Air France
08 May - 24 May	Avianca
02 May - 15 May	Avianca
01 May - 24 May	Avianca
23 May - 14 Jun	Avianca
22 May - 11 Jun	KLM
23 May - 12 Jun	Avianca
01 May - 30 Jun	Iberia

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

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 May from $835

Return flights