Cheapest return flights from Istanbul to Kathmandu in September from 333€

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

Return flights

22 Sep - 27 Sep IndiGo
22 Sep - 29 Sep Air Arabia
20 Sep - 13 Oct Air Arabia
23 Sep - 30 Sep Air Arabia
23 Sep - 13 Oct Air Arabia
23 Sep - 07 Oct Air Arabia
20 Sep - 22 Sep Pegasus Airlines
29 Sep - 13 Oct Flynas
30 Sep - 14 Oct Pegasus Airlines
29 Sep - 06 Oct AJet
27 Sep - 13 Oct Pegasus Airlines
27 Sep - 11 Oct Pegasus Airlines
27 Sep - 06 Oct Pegasus Airlines
27 Sep - 07 Oct IndiGo
22 Sep - 29 Sep Turkish Airlines direct

Also check the deals for one-way flights from Istanbul to Kathmandu in September.

Skyscanner

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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