AirHint found the following cheapest return flights from Basel (BSL) to Oslo (OSL) in September 2026 (see full year).
Return flights
| 06 Sep - 27 Sep | Norwegian | direct | |
| 13 Sep - 19 Sep | Norwegian | ||
| 17 Sep - 04 Oct | Wizz Air | ||
| 13 Sep - 27 Sep | Norwegian | direct | |
| 07 Sep - 27 Sep | Norwegian Air Sweden AOC | ||
| 07 Sep - 12 Sep | easyJet |
Also check the deals for one-way flights from Basel to Oslo in September.
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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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