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

Return flights

07 Jul - 04 Aug	KLM
09 Jul - 16 Jul	Air France
08 Jul - 15 Jul	KLM
25 Jul - 30 Jul	Lufthansa
26 Jul - 30 Jul	Lufthansa
16 Jul - 27 Jul	Lufthansa
06 Jul - 11 Jul	Eurowings
13 Jul - 17 Jul	Eurowings
14 Jul - 20 Jul	Lufthansa
18 Jul - 04 Aug	Air France
20 Jul - 24 Jul	easyJet
13 Jul - 20 Jul	Eurowings
12 Jul - 09 Aug	LOT

Also check the deals for one-way flights from Duesseldorf to San Jose in July.

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 July from $946

Return flights