AirHint found the following cheapest return flights from Brussels (BRU) to Oslo (OSL) in June 2025 (see full year).

Return flights

25 Jun - 09 Jul	Ryanair
30 Jun - 03 Jul	Ryanair
23 Jun - 14 Jul	Ryanair
16 Jun - 09 Jul	Ryanair
10 Jun - 14 Jun	Ryanair
30 Jun - 04 Jul	Ryanair
26 Jun - 03 Jul	Brussels Airlines	direct
11 Jun - 14 Jun	Ryanair
13 Jun - 17 Jun	Ryanair
09 Jun - 16 Jun	Ryanair
16 Jun - 17 Jun	Ryanair
13 Jun - 16 Jun	Ryanair
11 Jun - 18 Jun	Ryanair
10 Jun - 12 Jun	Ryanair
09 Jun - 10 Jun	Ryanair
28 Jun - 03 Jul	Ryanair
09 Jun - 14 Jun	Ryanair
29 Jun - 20 Jul	Norwegian	direct
23 Jun - 14 Jul	Brussels Airlines	direct
16 Jun - 09 Jul	Brussels Airlines	direct

Also check the deals for one-way flights from Brussels to Oslo in June.

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 Brussels to Oslo in June from $157

Return flights