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

Return flights

16 Sep - 03 Oct	SWISS
10 Sep - 24 Sep	SWISS
02 Sep - 24 Sep	SWISS
23 Sep - 10 Oct	SWISS
24 Sep - 08 Oct	SWISS
12 Sep - 28 Sep	Air Canada
12 Sep - 27 Sep	Air Canada
12 Sep - 26 Sep	SWISS
25 Sep - 09 Oct	Air Canada
27 Sep - 06 Oct	Air Canada
11 Sep - 27 Sep	Air Canada
13 Sep - 28 Sep	Air Canada
11 Sep - 28 Sep	Air Canada
19 Sep - 28 Sep	Air Canada
20 Sep - 28 Sep	Air Canada
15 Sep - 01 Oct	United
13 Sep - 01 Oct	United
08 Sep - 03 Oct	United
24 Sep - 12 Oct	United
13 Sep - 26 Oct	United

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 529€

Return flights