AirHint found the following cheapest return flights from Stockholm (ARN) to Oslo (OSL) in September 2026 (see full year).
Return flights
| 28 Sep - 05 Oct | Scandinavian Airlines | direct | |
| 07 Sep - 07 Sep | Norwegian | direct | |
| 07 Sep - 15 Sep | Norwegian | direct | |
| 07 Sep - 24 Sep | Norwegian | direct |
Also check the deals for one-way flights from Stockholm to Oslo in September.
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