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

Return flights

11 Sep - 21 Sep	Scandinavian Airlines
03 Sep - 17 Sep	Norwegian
11 Sep - 16 Sep	Scandinavian Airlines
02 Sep - 09 Sep	easyJet
04 Sep - 11 Sep	Norwegian
06 Sep - 21 Sep	Norwegian
19 Sep - 21 Sep	Scandinavian Airlines
05 Sep - 12 Sep	Ryanair
07 Sep - 21 Sep	Scandinavian Airlines
26 Sep - 29 Sep	Norwegian
26 Sep - 08 Oct	Norwegian
29 Sep - 08 Oct	Norwegian
29 Sep - 20 Oct	Norwegian
28 Sep - 08 Oct	Norwegian
29 Sep - 19 Oct	Norwegian
27 Sep - 08 Oct	Norwegian
28 Sep - 19 Oct	Norwegian

Also check the deals for one-way flights from Berlin to Tromso 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 Berlin to Tromso in September from $206

Return flights