Cheapest one-way flights from Oslo to Trondheim in September from $90

Best time to book flights for Oslo (OSL) to Trondheim (TRD) flights at AirHint

AirHint found the following cheapest one-way flights from Oslo (OSL) to Trondheim (TRD) in September 2025 (see full year).

One-Way flights

01 Sep Scandinavian Airlines direct
02 Sep Scandinavian Airlines direct
03 Sep Scandinavian Airlines direct
25 Sep Scandinavian Airlines direct
26 Sep Scandinavian Airlines direct
27 Sep Scandinavian Airlines direct
30 Sep Scandinavian Airlines direct
05 Sep Scandinavian Airlines direct
06 Sep Scandinavian Airlines direct
07 Sep Scandinavian Airlines direct

Also check the deals for return flights from Oslo to Trondheim 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 Trondheim

Cheap car rent in Trondheim