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

Return flights

05 Dec - 14 Dec	Pegasus Airlines
06 Dec - 14 Dec	Pegasus Airlines
06 Dec - 13 Dec	Pegasus Airlines
01 Dec - 07 Dec	Pegasus Airlines
15 Dec - 21 Jan	Pegasus Airlines
20 Dec - 06 Jan	Pegasus Airlines
26 Dec - 10 Jan	Pegasus Airlines
23 Dec - 02 Jan	Pegasus Airlines

Also check the deals for one-way flights from Madrid 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 Madrid to Kathmandu in December from 599€

Return flights