AirHint found the following cheapest return flights from Oslo (OSL) to Zagreb (ZAG) in October 2025 (see full year).

Return flights

22 Oct - 24 Oct	Ryanair	direct
13 Oct - 24 Oct	Ryanair	direct
13 Oct - 17 Oct	Ryanair	direct
13 Oct - 15 Oct	Ryanair	direct
10 Oct - 15 Oct	Ryanair	direct
08 Oct - 17 Oct	Ryanair	direct
10 Oct - 17 Oct	Ryanair	direct
06 Oct - 15 Oct	Ryanair	direct
17 Oct - 29 Oct	Ryanair	direct
06 Oct - 10 Oct	Ryanair	direct
17 Oct - 08 Nov	Ryanair
24 Oct - 01 Nov	Lufthansa

Also check the deals for one-way flights from Oslo to Zagreb 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 return flights from Oslo to Zagreb in October from $44

Return flights