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

Return flights

16 Sep - 19 Sep	Norwegian
16 Sep - 21 Sep	Norwegian
19 Sep - 23 Sep	Norwegian
16 Sep - 23 Sep	Norwegian
15 Sep - 19 Sep	Norwegian
17 Sep - 19 Sep	Norwegian
19 Sep - 07 Oct	Norwegian
16 Sep - 07 Oct	Norwegian
15 Sep - 23 Sep	Norwegian
30 Sep - 21 Oct	Norwegian
17 Sep - 23 Sep	Norwegian
30 Sep - 07 Oct	Norwegian
30 Sep - 15 Oct	Norwegian
30 Sep - 13 Oct	Norwegian
30 Sep - 14 Oct	Norwegian
14 Sep - 21 Sep	Norwegian
17 Sep - 07 Oct	Norwegian
19 Sep - 21 Sep	Norwegian
19 Sep - 06 Oct	Norwegian
16 Sep - 06 Oct	Norwegian

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

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 Tromso to Copenhagen in September from 144€

Return flights