AirHint found the following cheapest return flights from Trondheim (TRD) to Alicante (ALC) in September 2025 (see full year).

Return flights

14 Sep - 16 Sep	Norwegian
08 Sep - 13 Sep	Norwegian
13 Sep - 16 Sep	Wizz Air
13 Sep - 20 Sep	Wizz Air
13 Sep - 15 Sep	Wizz Air
08 Sep - 15 Sep	Norwegian
23 Sep - 29 Sep	Wizz Air
12 Sep - 19 Sep	Norwegian
25 Sep - 01 Oct	Norwegian
26 Sep - 29 Sep	Norwegian
08 Sep - 14 Sep	Norwegian
26 Sep - 02 Oct	Scandinavian Airlines
26 Sep - 01 Oct	Scandinavian Airlines
16 Sep - 02 Oct	Norwegian Air Sweden AOC
22 Sep - 02 Oct	Norwegian
15 Sep - 02 Oct	Norwegian
16 Sep - 01 Oct	Norwegian Air Sweden AOC
23 Sep - 02 Oct	Norwegian Air Sweden AOC
27 Sep - 02 Oct	Norwegian
20 Sep - 02 Oct	Norwegian

Also check the deals for one-way flights from Trondheim to Alicante 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 Trondheim to Alicante in September from $236

Return flights