AirHint found the following cheapest return flights from Amsterdam (AMS) to San Jose (SJO) in August 2025 (see full year).

Return flights

19 Aug - 19 Sep	SWISS
29 Aug - 20 Sep	Lufthansa
29 Aug - 12 Sep	Lufthansa
07 Aug - 12 Aug	United
08 Aug - 09 Sep	United
21 Aug - 09 Sep	United
23 Aug - 13 Sep	United
21 Aug - 13 Sep	United
10 Aug - 28 Aug	United
08 Aug - 16 Aug	United
07 Aug - 19 Aug	United
14 Aug - 28 Aug	United
21 Aug - 04 Sep	United
30 Aug - 14 Sep	United
31 Aug - 17 Sep	United
09 Aug - 28 Aug	United
09 Aug - 16 Aug	United
06 Aug - 19 Aug	United
08 Aug - 29 Aug	United
16 Aug - 29 Aug	United

Also check the deals for one-way flights from Amsterdam 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 Amsterdam to San Jose in August from 556€

Return flights