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

Return flights

03 Dec - 13 Dec	easyJet
08 Dec - 22 Dec	Wizz Air
01 Dec - 21 Dec	Vueling Airlines
08 Dec - 21 Dec	Wizz Air
07 Dec - 21 Dec	Wizz Air
24 Dec - 17 Jan	Pegasus Airlines
12 Dec - 23 Dec	Wizz Air Malta
11 Dec - 23 Dec	Vueling Airlines
20 Dec - 10 Jan	AJet
24 Dec - 11 Jan	Pegasus Airlines
21 Dec - 07 Jan	Wizz Air
03 Dec - 03 Jan	easyJet
01 Dec - 12 Jan	Wizz Air Malta
19 Dec - 11 Jan	Wizz Air Malta
20 Dec - 07 Jan	Wizz Air Malta
19 Dec - 26 Dec	AJet
19 Dec - 05 Jan	AJet
20 Dec - 05 Jan	AJet
19 Dec - 29 Dec	AJet
20 Dec - 27 Dec	AJet

Also check the deals for one-way flights from Barcelona 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 Barcelona to Kathmandu in December from 538€

Return flights