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

Return flights

22 Sep - 29 Sep	Pegasus Airlines
29 Sep - 06 Oct	Pegasus Airlines
30 Sep - 07 Oct	Pegasus Airlines
30 Sep - 11 Oct	Pegasus Airlines
28 Sep - 05 Oct	Pegasus Airlines
23 Sep - 30 Sep	Pegasus Airlines
24 Sep - 01 Oct	Ryanair
19 Sep - 11 Oct	Ryanair
22 Sep - 08 Oct	Pegasus Airlines
25 Sep - 02 Oct	Ryanair
22 Sep - 19 Oct	Pegasus Airlines
20 Sep - 02 Oct	Ryanair
20 Sep - 27 Sep	Ryanair
19 Sep - 26 Sep	Ryanair
26 Sep - 30 Sep	Ryanair
20 Sep - 21 Sep	Ryanair

Also check the deals for one-way flights from Zagreb to Kathmandu 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.

Book a cheap hotel in Kathmandu

Cheap car rent in Kathmandu

Cheapest return flights from Zagreb to Kathmandu in September from $711

Return flights