Cheapest return flights from Oslo to Copenhagen in September from $116

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

Return flights

02 Sep - 09 Sep Ryanair
06 Sep - 13 Sep Norwegian
09 Sep - 09 Sep Norwegian
04 Sep - 07 Sep Scandinavian Airlines
05 Sep - 07 Sep Norwegian
02 Sep - 09 Sep Norwegian direct
22 Sep - 29 Sep Norwegian direct
09 Sep - 09 Sep Norwegian direct
13 Sep - 18 Sep Ryanair
16 Sep - 28 Sep Norwegian direct
16 Sep - 01 Oct Norwegian direct
16 Sep - 07 Oct Norwegian direct
17 Sep - 01 Oct Norwegian Air Sweden AOC direct
17 Sep - 07 Oct Norwegian direct
21 Sep - 01 Oct Norwegian direct
21 Sep - 07 Oct Norwegian direct
29 Sep - 17 Oct Norwegian Air Sweden AOC direct
29 Sep - 01 Oct Norwegian Air Sweden AOC direct
29 Sep - 16 Oct Norwegian Air Sweden AOC direct
29 Sep - 07 Oct Norwegian Air Sweden AOC direct

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

Skyscanner

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.

Book a cheap hotel in Copenhagen

Cheap car rent in Copenhagen

Feel free to contact us with any feedback or request another flight research.