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

Return flights

03 Jul - 07 Jul	Nepal Airlines
06 Jul - 19 Jul	IndiGo
17 Jul - 04 Aug	Air India
15 Jul - 23 Jul	Air Arabia
16 Jul - 24 Jul	Air Arabia
17 Jul - 23 Jul	Air Arabia
17 Jul - 24 Jul	Air Arabia
15 Jul - 23 Jul	Turkish Airlines	direct
15 Jul - 24 Jul	Turkish Airlines	direct
06 Jul - 19 Jul	Turkish Airlines	direct
17 Jul - 24 Jul	Turkish Airlines	direct
17 Jul - 04 Aug	Turkish Airlines	direct

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

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 Kathmandu to Istanbul in July from $466

Return flights