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

Return flights

02 Oct - 07 Oct	Ryanair
14 Oct - 22 Oct	Ryanair
15 Oct - 21 Oct	Ryanair
17 Oct - 21 Oct	Ryanair
14 Oct - 20 Oct	Ryanair
19 Oct - 23 Oct	Air Serbia
09 Oct - 16 Oct	Ryanair
08 Oct - 11 Oct	Ryanair
26 Oct - 30 Oct	Ryanair
31 Oct - 02 Nov	Ryanair
30 Oct - 02 Nov	Air Serbia
15 Oct - 19 Oct	Ryanair
29 Oct - 02 Nov	Ryanair

Also check the deals for one-way flights from Zagreb to Lisbon 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 Zagreb to Lisbon in October from 157€

Return flights