AirHint found the following cheapest one-way flights from Harstad/Narvik (EVE) to Oslo (OSL) in September 2025 (see full year).

One-Way flights

25 Sep	Norwegian	direct
06 Sep	Scandinavian Airlines	direct
16 Sep	Norwegian	direct
10 Sep	Norwegian	direct
11 Sep	Norwegian	direct
15 Sep	Norwegian	direct
04 Sep	Norwegian	direct
09 Sep	Norwegian	direct
22 Sep	Norwegian	direct
03 Sep	Norwegian	direct

Also check the deals for return flights from Harstad/Narvik to Oslo 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 one-way flights from Harstad/Narvik to Oslo in September from $78

One-Way flights