AirHint found the following cheapest return flights from Zagreb (ZAG) to Vilnius (VNO) in September 2025 (see full year).

Return flights

29 Sep - 15 Oct	Ryanair
29 Sep - 06 Oct	Ryanair
29 Sep - 16 Oct	Ryanair
29 Sep - 13 Oct	Ryanair
10 Sep - 13 Sep	Ryanair
29 Sep - 18 Oct	Ryanair
30 Sep - 10 Oct	Ryanair
05 Sep - 11 Sep	Lufthansa
11 Sep - 17 Sep	Lufthansa
29 Sep - 14 Oct	Ryanair
20 Sep - 04 Oct	Air Serbia
27 Sep - 11 Oct	Ryanair
26 Sep - 11 Oct	LOT

Also check the deals for one-way flights from Zagreb to Vilnius in September.

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 Vilnius in September from 139€

Return flights