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

Return flights

25 Jan - 04 Feb	IndiGo
27 Jan - 03 Feb	IndiGo
28 Jan - 02 Feb	IndiGo
25 Jan - 01 Feb	IndiGo
27 Jan - 06 Feb	IndiGo
13 Jan - 22 Jan	Air Arabia
05 Jan - 31 Jan	AJet
08 Jan - 22 Jan	Air Arabia
28 Jan - 07 Feb	IndiGo
23 Jan - 25 Jan	IndiGo
20 Jan - 25 Jan	IndiGo
19 Jan - 25 Jan	IndiGo
18 Jan - 31 Jan	IndiGo
14 Jan - 21 Jan	Air Arabia
17 Jan - 14 Feb	IndiGo
07 Jan - 20 Jan	Pegasus Airlines
01 Jan - 15 Jan	Flynas
25 Jan - 01 Feb	Turkish Airlines	direct
27 Jan - 03 Feb	Turkish Airlines	direct
28 Jan - 07 Feb	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 384€

Return flights