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

Return flights

01 Dec - 12 Dec	Ryanair
01 Dec - 15 Jan	Vueling Airlines
01 Dec - 14 Dec	Ryanair
07 Dec - 22 Dec	Vueling Airlines
12 Dec - 23 Dec	Ryanair
12 Dec - 12 Jan	Ryanair
15 Dec - 17 Jan	Wizz Air
05 Dec - 08 Dec	Pegasus Airlines
05 Dec - 09 Dec	Wizz Air
15 Dec - 12 Jan	Wizz Air
05 Dec - 13 Dec	Wizz Air
12 Dec - 10 Jan	Ryanair
30 Dec - 09 Jan	Vueling Airlines
21 Dec - 31 Jan	Wizz Air Malta
22 Dec - 12 Jan	Pegasus Airlines
25 Dec - 07 Jan	Pegasus Airlines
22 Dec - 09 Jan	Pegasus Airlines
19 Dec - 28 Dec	Pegasus Airlines

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 490€

Return flights