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

Return flights

20 Aug - 27 Aug	Ryanair
24 Aug - 27 Aug	KLM
18 Aug - 21 Aug	KLM
18 Aug - 20 Aug	Ryanair
23 Aug - 26 Aug	Lufthansa
22 Aug - 25 Aug	Lufthansa
23 Aug - 25 Aug	Lufthansa
13 Aug - 18 Aug	KLM
25 Aug - 31 Aug	Lufthansa
17 Aug - 20 Aug	KLM
27 Aug - 05 Sep	KLM
27 Aug - 05 Sep	Luxair	direct
31 Aug - 07 Sep	SWISS
22 Aug - 09 Sep	KLM

Also check the deals for one-way flights from Luxemburg 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 Luxemburg to Oslo in August from 157€

Return flights