AirHint found the following cheapest return flights from Porto (OPO) to Oslo (OSL) in October 2026 (see full year).
Return flights
| 16 Oct - 23 Oct | Vueling Airlines | ||
| 16 Oct - 23 Oct | Norwegian | direct | |
| 09 Oct - 23 Oct | Norwegian | direct | |
| 09 Oct - 12 Oct | Norwegian | direct |
Also check the deals for one-way flights from Porto to Oslo in October.
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