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

Return flights

21 Aug - 10 Sep	Wizz Air
27 Aug - 03 Sep	Wizz Air
25 Aug - 28 Aug	Wizz Air
12 Aug - 14 Aug	Wizz Air
12 Aug - 18 Aug	Wizz Air
12 Aug - 19 Aug	Wizz Air
18 Aug - 22 Aug	Wizz Air
18 Aug - 20 Aug	Wizz Air
31 Aug - 02 Sep	Wizz Air
13 Aug - 19 Aug	Wizz Air
29 Aug - 12 Sep	Ryanair
13 Aug - 26 Aug	Wizz Air
22 Aug - 28 Aug	Wizz Air
26 Aug - 31 Aug	Norwegian
29 Aug - 01 Sep	Wizz Air
30 Aug - 01 Sep	Wizz Air
27 Aug - 01 Sep	Wizz Air
28 Aug - 01 Sep	Wizz Air
26 Aug - 03 Sep	Norwegian	direct
27 Aug - 03 Sep	Norwegian	direct

Also check the deals for one-way flights from Hamburg 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 Hamburg to Oslo in August from $98

Return flights