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

Return flights

30 Jul - 20 Aug	Norwegian	direct
30 Jul - 13 Aug	Norwegian	direct
26 Jul - 13 Aug	Norwegian	direct
30 Jul - 09 Aug	Norwegian	direct
26 Jul - 09 Aug	Norwegian	direct
26 Jul - 30 Jul	Norwegian	direct
19 Jul - 23 Jul	Norwegian	direct
19 Jul - 30 Jul	Norwegian	direct
19 Jul - 09 Aug	Norwegian
26 Jul - 27 Jul	Norwegian
19 Jul - 27 Jul	Norwegian
19 Jul - 26 Jul	Norwegian
19 Jul - 26 Jul	Norwegian	direct

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

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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Cheapest return flights from Oslo to Basel in July from 122€

Return flights