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

Return flights

20 Aug - 10 Sep	Delta
30 Aug - 13 Sep	Avianca
21 Aug - 11 Sep	Avianca
18 Aug - 01 Sep	Ryanair
01 Aug - 13 Aug	Avianca
04 Aug - 18 Aug	Ryanair
04 Aug - 21 Aug	Ryanair
15 Aug - 30 Aug	Avianca
30 Aug - 13 Sep	Air France	direct
11 Aug - 29 Aug	Ryanair
05 Aug - 19 Aug	Ryanair
13 Aug - 28 Aug	LOT
06 Aug - 23 Aug	LOT
10 Aug - 31 Aug	WestJet
03 Aug - 21 Aug	WestJet
21 Aug - 11 Sep	Air France	direct

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

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 August from 726€

Return flights