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

Return flights

10 Dec - 17 Dec	Ryanair
08 Dec - 24 Jan	Ryanair
05 Dec - 19 Dec	Ryanair
01 Dec - 29 Dec	Ryanair
05 Dec - 18 Dec	Ryanair
03 Dec - 30 Dec	Ryanair
20 Dec - 23 Jan	Ryanair
16 Dec - 30 Dec	Ryanair
15 Dec - 31 Dec	Aer Lingus
19 Dec - 23 Jan	Ryanair
24 Dec - 29 Jan	Ryanair
12 Dec - 31 Dec	Ryanair
23 Dec - 07 Jan	Ryanair
20 Dec - 24 Jan	Ryanair
22 Dec - 26 Jan	Ryanair
19 Dec - 30 Dec	Ryanair
28 Dec - 31 Dec	Pegasus Airlines
22 Dec - 23 Jan	Ryanair
20 Dec - 03 Jan	Ryanair
18 Dec - 04 Jan	Ryanair

Also check the deals for one-way flights from Dublin 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 Dublin to Kathmandu in December from 584€

Return flights