Cheapest return flights from Kathmandu to Istanbul in September from 453€

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

Return flights

04 Sep - 09 Sep Air Arabia
25 Sep - 05 Oct Air Arabia
08 Sep - 15 Sep Air India
01 Sep - 14 Sep Air Arabia
15 Sep - 25 Sep Air Arabia
16 Sep - 26 Sep Air Arabia
08 Sep - 15 Sep Turkish Airlines direct
01 Sep - 14 Sep Turkish Airlines direct
25 Sep - 05 Oct Turkish Airlines direct

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

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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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