Cheapest return BSL–OSL flights, May

AirHint found the following cheapest return flights from Basel (BSL) to Oslo (OSL) in May 2026 (see full year).

Return flights

28 May - 04 Jun Ryanair
28 May - 29 May Norwegian
24 May - 11 Jun Norwegian direct
28 May - 11 Jun Norwegian direct
24 May - 28 May Norwegian
24 May - 28 May Norwegian direct
31 May - 11 Jun Norwegian direct
28 May - 31 May Wizz Air
24 May - 04 Jun Norwegian direct
28 May - 04 Jun Norwegian direct
24 May - 07 Jun Norwegian direct
31 May - 04 Jun Norwegian direct
28 May - 07 Jun Norwegian direct
24 May - 31 May Norwegian direct
28 May - 31 May Norwegian direct
31 May - 07 Jun Norwegian direct
27 May - 29 May easyJet
24 May - 29 May Norwegian
12 May - 24 May easyJet
30 May - 31 May Lufthansa

Also check the deals for one-way flights from Basel to Oslo in May.

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