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

Return flights

25 Aug - 10 Sep	Norwegian	direct
25 Aug - 03 Sep	Norwegian	direct
25 Aug - 08 Sep	Norwegian	direct
25 Aug - 12 Sep	Norwegian	direct
27 Aug - 17 Sep	Norwegian	direct
27 Aug - 10 Sep	Norwegian	direct
27 Aug - 03 Sep	Norwegian	direct
31 Aug - 08 Sep	Ryanair
25 Aug - 01 Sep	Norwegian	direct
25 Aug - 05 Sep	Norwegian	direct
23 Aug - 27 Aug	Eurowings
19 Aug - 27 Aug	Eurowings
27 Aug - 29 Aug	Norwegian
20 Aug - 27 Aug	Ryanair
24 Aug - 27 Aug	easyJet
24 Aug - 27 Aug	Norwegian	direct
21 Aug - 27 Aug	Eurowings
26 Aug - 27 Aug	Ryanair
28 Aug - 29 Aug	Ryanair
22 Aug - 27 Aug	Condor

Also check the deals for one-way flights from Duesseldorf to Oslo 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 Oslo in August from 114€

Return flights