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

Return flights

01 Sep - 18 Sep	Wizz Air
05 Sep - 31 Oct	Wizz Air
03 Sep - 10 Sep	Wizz Air
05 Sep - 22 Sep	Wizz Air
08 Sep - 23 Sep	Wizz Air
10 Sep - 23 Sep	Wizz Air
08 Sep - 15 Sep	Wizz Air
04 Sep - 24 Sep	Wizz Air
05 Sep - 14 Sep	Wizz Air
05 Sep - 19 Sep	LOT
10 Sep - 16 Sep	Air Arabia
29 Sep - 27 Oct	Air Arabia
25 Sep - 27 Oct	Air Arabia
08 Sep - 23 Oct	Air Arabia
25 Sep - 08 Oct	Air Arabia
22 Sep - 08 Oct	Air Arabia
29 Sep - 15 Oct	Air Arabia
15 Sep - 15 Oct	Air Arabia
26 Sep - 13 Oct	Air Arabia
26 Sep - 11 Oct	Air Arabia

Also check the deals for one-way flights from Warsaw 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 Warsaw to Kathmandu in September from 581€

Return flights