AirHint found the following cheapest return flights from Sandefjord (TRF) to Porto (OPO) in September 2026 (see full year).
Return flights
| 25 Sep - 30 Sep | Ryanair | ||
| 28 Sep - 05 Oct | Ryanair | ||
| 25 Sep - 02 Oct | Ryanair | ||
| 21 Sep - 28 Sep | Scandinavian Airlines | ||
| 30 Sep - 02 Oct | Scandinavian Airlines |
Also check the deals for one-way flights from Sandefjord to Porto in September.
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