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

Return flights

21 Aug - 04 Sep	Air France
23 Aug - 07 Sep	Eurowings
23 Aug - 30 Aug	Air France
22 Aug - 30 Aug	easyJet
04 Aug - 18 Aug	Norwegian
23 Aug - 31 Aug	Air France
08 Aug - 15 Aug	easyJet
03 Aug - 24 Aug	easyJet
01 Aug - 09 Aug	easyJet
22 Aug - 31 Aug	KLM
12 Aug - 29 Aug	SWISS
07 Aug - 23 Aug	Ryanair

Also check the deals for one-way flights from Duesseldorf 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 Duesseldorf to San Jose in August from $864

Return flights