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

Return flights

10 Dec - 17 Dec	Air Arabia
13 Dec - 22 Dec	Air Arabia
13 Dec - 20 Dec	Air Arabia
14 Dec - 20 Dec	Air Arabia
12 Dec - 01 Jan	Air Arabia
12 Dec - 21 Dec	Air Arabia
12 Dec - 19 Dec	Air Arabia
13 Dec - 19 Dec	Air Arabia
13 Dec - 01 Jan	Air Arabia
09 Dec - 16 Dec	Air Arabia
07 Dec - 13 Dec	Air Arabia
27 Dec - 07 Jan	Pegasus Airlines
21 Dec - 25 Dec	Air Arabia
07 Dec - 07 Jan	AJet
06 Dec - 06 Jan	AJet
06 Dec - 05 Jan	flydubai

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

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 December from 417€

Return flights