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

Return flights

24 Sep - 02 Oct	Air Canada
27 Sep - 04 Oct	Air Canada
27 Sep - 09 Oct	Air Canada
25 Sep - 02 Oct	Air Canada
19 Sep - 02 Oct	Air Canada
25 Sep - 09 Oct	Air Canada
13 Sep - 21 Sep	Air Canada
09 Sep - 01 Oct	Air Canada
06 Sep - 01 Oct	Air Canada
23 Sep - 01 Oct	Air Canada
12 Sep - 21 Sep	Air Canada
12 Sep - 28 Sep	Air Canada
09 Sep - 27 Sep	Air Canada
13 Sep - 28 Sep	Air Canada
16 Sep - 28 Sep	Air Canada
18 Sep - 27 Sep	Air Canada
19 Sep - 27 Sep	Air Canada
19 Sep - 03 Oct	Air Canada
18 Sep - 24 Sep	SWISS
12 Sep - 26 Sep	SWISS

Also check the deals for one-way flights from Amsterdam to San Jose in September.

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 September from $602

Return flights