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

Return flights

02 Sep - 24 Sep	Pegasus Airlines
02 Sep - 13 Sep	Pegasus Airlines
13 Sep - 20 Sep	Ryanair
07 Sep - 14 Sep	Pegasus Airlines
07 Sep - 16 Sep	Pegasus Airlines
03 Sep - 10 Sep	Ryanair
05 Sep - 03 Oct	Air Serbia
06 Sep - 04 Oct	Ryanair
20 Sep - 27 Sep	Ryanair
06 Sep - 13 Sep	Ryanair
01 Sep - 08 Sep	Turkish Airlines
09 Sep - 10 Sep	Pegasus Airlines
11 Sep - 09 Oct	Pegasus Airlines
08 Sep - 06 Oct	flydubai
09 Sep - 07 Oct	flydubai
12 Sep - 10 Oct	flydubai
07 Sep - 05 Oct	flydubai
07 Sep - 07 Oct	flydubai
21 Sep - 16 Oct	Pegasus Airlines
13 Sep - 11 Oct	flydubai

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.

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Cheapest return flights from Zagreb to Kathmandu in September from 583€

Return flights