AirHint found the following cheapest return flights from Trondheim (TRD) to Bangkok (BKK) in December 2025 (see full year).

Return flights

09 Dec - 16 Dec	Scandinavian Airlines
12 Dec - 28 Dec	Norwegian
12 Dec - 29 Dec	Wizz Air
28 Dec - 14 Jan	Norwegian
12 Dec - 31 Dec	Wizz Air
29 Dec - 13 Jan	Norwegian
29 Dec - 12 Jan	Norwegian
26 Dec - 26 Jan	Scandinavian Airlines
23 Dec - 02 Jan	Norwegian
19 Dec - 04 Jan	Wizz Air
20 Dec - 03 Jan	Scandinavian Airlines
19 Dec - 02 Jan	Norwegian

Also check the deals for one-way flights from Trondheim to Bangkok in December.

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 Bangkok

Cheap car rent in Bangkok

Cheapest return flights from Trondheim to Bangkok in December from $781

Return flights