Cheapest return flights from Barcelona to Oslo in September from $87

AirHint found the following cheapest return flights from Barcelona (BCN) to Oslo (OSL) in September 2025 (see full year).

Return flights

25 Sep - 15 Oct Norwegian Air Sweden AOC direct
25 Sep - 11 Oct Norwegian Air Sweden AOC direct
25 Sep - 08 Oct Norwegian Air Sweden AOC direct
27 Sep - 15 Oct Norwegian Air Sweden AOC direct
27 Sep - 11 Oct Norwegian Air Sweden AOC direct
27 Sep - 08 Oct Norwegian Air Sweden AOC direct
25 Sep - 13 Oct Norwegian Air Sweden AOC direct
27 Sep - 13 Oct Norwegian Air Sweden AOC direct
24 Sep - 11 Oct Vueling Airlines direct
24 Sep - 08 Oct Vueling Airlines direct
20 Sep - 22 Sep Norwegian Air Sweden AOC
17 Sep - 23 Sep Vueling Airlines
20 Sep - 24 Sep Norwegian Air Sweden AOC
27 Sep - 29 Sep Vueling Airlines
25 Sep - 29 Sep Norwegian Air Sweden AOC
17 Sep - 24 Sep Ryanair
18 Sep - 23 Sep Norwegian
26 Sep - 30 Sep Norwegian
20 Sep - 20 Sep Norwegian Air Sweden AOC direct
18 Sep - 20 Sep Norwegian direct

Also check the deals for one-way flights from Barcelona 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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