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

Return flights

18 Sep - 01 Oct	SWISS
11 Sep - 24 Sep	SWISS
16 Sep - 03 Oct	SWISS
18 Sep - 02 Oct	Air France
17 Sep - 08 Oct	Air Canada
08 Sep - 17 Sep	SWISS
09 Sep - 27 Sep	Lufthansa
16 Sep - 02 Oct	Air France
04 Sep - 30 Sep	SWISS
12 Sep - 24 Sep	Lufthansa
20 Sep - 10 Oct	Ryanair
01 Sep - 23 Sep	easyJet
12 Sep - 25 Sep	Air France
24 Sep - 24 Sep	Air France
04 Sep - 04 Sep	Brussels Airlines

Also check the deals for one-way flights from Hamburg 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 Hamburg to San Jose in September from 456€

Return flights