AirHint found the following cheapest one-way flights from Oslo (OSL) to Basel (BSL) in May 2026 (see full year).
One-Way flights
| 27 May | Wizz Air | ||
| 28 May | Norwegian | direct | |
| 29 May | Ryanair | ||
| 30 May | Norwegian | ||
| 31 May | Norwegian | direct |
Also check the deals for return flights from Oslo to Basel in May.
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