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

Return flights

10 Dec - 23 Dec	Wizz Air UK
14 Dec - 07 Jan	Wizz Air UK
08 Dec - 14 Jan	Wizz Air UK
13 Dec - 10 Jan	Wizz Air UK
08 Dec - 02 Jan	Wizz Air UK
11 Dec - 07 Jan	Wizz Air UK
06 Dec - 31 Dec	easyJet
16 Dec - 06 Jan	Fly One
25 Dec - 21 Jan	Wizz Air
15 Dec - 05 Jan	Wizz Air UK
17 Dec - 10 Jan	Wizz Air
27 Dec - 03 Jan	easyJet

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 $667

Return flights