AirHint found the following cheapest one-way flights from Oslo (OSL) to Barcelona (BCN) in October 2025 (see full year).

One-Way flights

15 Oct	Vueling Airlines	direct
25 Oct	Vueling Airlines	direct
11 Oct	Vueling Airlines	direct
18 Oct	Vueling Airlines	direct
08 Oct	Vueling Airlines	direct
28 Oct	Norwegian	direct
27 Oct	Norwegian	direct
19 Oct	Wizz Air
06 Oct	Vueling Airlines	direct
24 Oct	Wizz Air Malta

Also check the deals for return flights from Oslo to Barcelona in October.

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 one-way flights from Oslo to Barcelona in October from $27

One-Way flights