AirHint found the following cheapest return flights from Newcastle (NCL) to Oslo (OSL) in September 2026 (see full year).
Return flights
| 04 Sep - 06 Sep | Ryanair | ||
| 03 Sep - 05 Sep | Ryanair | ||
| 02 Sep - 05 Sep | KLM | ||
| 06 Sep - 09 Sep | KLM |
Also check the deals for one-way flights from Newcastle to Oslo in September.
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