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

Return flights

01 Dec - 17 Dec	Pegasus Airlines
01 Dec - 15 Dec	Pegasus Airlines
01 Dec - 16 Dec	Pegasus Airlines
02 Dec - 15 Dec	AJet
01 Dec - 05 Dec	Pegasus Airlines
05 Dec - 20 Dec	Pegasus Airlines
02 Dec - 09 Dec	AJet
17 Dec - 24 Dec	Vueling Airlines
04 Dec - 27 Dec	Wizz Air
06 Dec - 31 Dec	AJet
26 Dec - 07 Jan	Pegasus Airlines
06 Dec - 01 Jan	AJet
24 Dec - 04 Jan	FlyOne (Romania)
23 Dec - 05 Jan	Pegasus Airlines
22 Dec - 05 Jan	Pegasus Airlines
23 Dec - 04 Jan	Pegasus Airlines
20 Dec - 04 Jan	Ryanair
22 Dec - 03 Jan	FlyOne (Romania)
26 Dec - 02 Jan	SunExpress
27 Dec - 05 Jan	IndiGo

Also check the deals for one-way flights from Brussels 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 Brussels to Kathmandu in December from 420€

Return flights