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

Return flights

07 Oct - 06 Nov	SWISS
26 Oct - 11 Nov	SWISS
13 Oct - 24 Oct	Lufthansa
24 Oct - 08 Nov	Lufthansa
30 Oct - 09 Nov	Ryanair
29 Oct - 03 Nov	KLM
30 Oct - 13 Nov	easyJet
30 Oct - 15 Nov	easyJet
10 Oct - 21 Oct	Lufthansa
20 Oct - 03 Nov	Eurowings
13 Oct - 23 Oct	Lufthansa
13 Oct - 20 Oct	Vueling Airlines
30 Oct - 14 Nov	Air France
01 Oct - 06 Oct	Vueling Airlines
20 Oct - 26 Oct	Ryanair
22 Oct - 31 Oct	SWISS
03 Oct - 06 Oct	Ryanair
03 Oct - 17 Oct	Lufthansa
31 Oct - 18 Nov	Air France
05 Oct - 18 Oct	Air France

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

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 October from $603

Return flights