Cheapest return flights from Oslo to Copenhagen in September from $134

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

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

Return flights

14 Sep - 18 Sep Norwegian Air Sweden AOC direct
14 Sep - 24 Sep Norwegian Air Sweden AOC direct
01 Sep - 18 Sep Norwegian Air Sweden AOC direct
01 Sep - 04 Sep Norwegian Air Sweden AOC direct
01 Sep - 02 Sep Norwegian Air Sweden AOC direct
01 Sep - 09 Sep Norwegian Air Sweden AOC direct
21 Sep - 24 Sep Norwegian Air Sweden AOC direct
15 Sep - 18 Sep Norwegian Air Sweden AOC direct
15 Sep - 24 Sep Norwegian Air Sweden AOC direct
28 Sep - 13 Oct Norwegian direct
21 Sep - 07 Oct Norwegian Air Sweden AOC direct
28 Sep - 07 Oct Norwegian direct
01 Sep - 19 Sep Norwegian direct
21 Sep - 11 Oct Norwegian direct
28 Sep - 11 Oct Norwegian direct
25 Sep - 13 Oct Norwegian Air Sweden AOC direct
28 Sep - 17 Oct Norwegian direct
21 Sep - 04 Oct Norwegian Air Sweden AOC direct
19 Sep - 07 Oct Norwegian Air Sweden AOC direct
14 Sep - 04 Oct Norwegian Air Sweden AOC direct

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