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

Return flights

01 Dec - 08 Dec	Wizz Air
02 Dec - 12 Dec	Wizz Air Malta
04 Dec - 29 Dec	Wizz Air UK
07 Dec - 09 Jan	Wizz Air UK
15 Dec - 21 Jan	Wizz Air UK
31 Dec - 14 Jan	Wizz Air
15 Dec - 22 Dec	Wizz Air UK
01 Dec - 19 Dec	Wizz Air
06 Dec - 11 Jan	Wizz Air UK
11 Dec - 15 Dec	Wizz Air
29 Dec - 12 Jan	Wizz Air UK
04 Dec - 07 Jan	Wizz Air UK
09 Dec - 30 Dec	Fly One
29 Dec - 14 Jan	Wizz Air UK
02 Dec - 07 Jan	Fly One
12 Dec - 14 Jan	Wizz Air
10 Dec - 31 Dec	Wizz Air UK
04 Dec - 25 Dec	Wizz Air UK
15 Dec - 07 Jan	Wizz Air UK
06 Dec - 30 Dec	Wizz Air UK

Also check the deals for one-way flights from London 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 London to Kathmandu in December from 594€

Return flights