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

Return flights

03 Dec - 08 Jan	Wizz Air UK
13 Dec - 07 Jan	Wizz Air UK
12 Dec - 12 Jan	Wizz Air UK
11 Dec - 01 Jan	Wizz Air UK
29 Dec - 05 Jan	Wizz Air UK
22 Dec - 12 Jan	Wizz Air UK
12 Dec - 01 Jan	Wizz Air UK
21 Dec - 09 Jan	Wizz Air UK
13 Dec - 01 Jan	Wizz Air UK
22 Dec - 02 Jan	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 $637

Return flights