Cheapest return flights from Copenhagen to Oslo in September from $149

Best time to book flights for Copenhagen (CPH) to Oslo (OSL) flights at AirHint

AirHint found the following cheapest return flights from Copenhagen (CPH) to Oslo (OSL) in September 2025 (see full year).

Return flights

19 Sep - 29 Sep Norwegian direct
02 Sep - 02 Sep Norwegian Air Sweden AOC direct
02 Sep - 08 Sep Norwegian Air Sweden AOC direct
02 Sep - 14 Sep Norwegian Air Sweden AOC direct
26 Sep - 29 Sep Norwegian direct
05 Sep - 08 Sep Norwegian Air Sweden AOC direct
05 Sep - 14 Sep Norwegian Air Sweden AOC direct
24 Sep - 29 Sep Norwegian Air Sweden AOC direct
12 Sep - 29 Sep Norwegian direct
12 Sep - 14 Sep Norwegian direct
26 Sep - 12 Oct Norwegian direct
24 Sep - 12 Oct Norwegian Air Sweden AOC direct
30 Sep - 12 Oct Norwegian Air Sweden AOC direct
26 Sep - 17 Oct Norwegian direct
26 Sep - 16 Oct Norwegian direct
30 Sep - 17 Oct Norwegian Air Sweden AOC direct
30 Sep - 16 Oct Norwegian Air Sweden AOC direct
21 Sep - 12 Oct Norwegian Air Sweden AOC direct
28 Sep - 12 Oct Norwegian direct
28 Sep - 17 Oct Norwegian direct

Also check the deals for one-way flights from Copenhagen to Oslo in September.

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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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