AirHint found the following cheapest return flights from Istanbul (IST) to Kathmandu (KTM) in January 2026 (see full year).

Return flights

27 Jan - 04 Feb	IndiGo
26 Jan - 03 Feb	IndiGo
22 Jan - 29 Jan	IndiGo
19 Jan - 26 Jan	IndiGo
20 Jan - 28 Jan	IndiGo
23 Jan - 15 Feb	IndiGo
25 Jan - 15 Feb	IndiGo
27 Jan - 31 Jan	IndiGo
24 Jan - 15 Feb	IndiGo
22 Jan - 15 Feb	IndiGo
30 Jan - 15 Feb	AJet
26 Jan - 30 Jan	IndiGo
19 Jan - 28 Jan	Pegasus Airlines
30 Jan - 14 Feb	AJet
26 Jan - 15 Feb	IndiGo
19 Jan - 25 Jan	Pegasus Airlines
18 Jan - 31 Jan	IndiGo
26 Jan - 03 Feb	Turkish Airlines	direct
27 Jan - 31 Jan	Turkish Airlines	direct
20 Jan - 28 Jan	Turkish Airlines	direct

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

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 Istanbul to Kathmandu in January from 340€

Return flights