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

Return flights

20 Dec - 15 Jan	IndiGo
17 Dec - 07 Jan	IndiGo
12 Dec - 07 Jan	IndiGo
01 Dec - 08 Dec	IndiGo
16 Dec - 27 Dec	IndiGo
10 Dec - 11 Jan	Air Arabia
10 Dec - 09 Jan	Air Arabia
10 Dec - 07 Jan	Air Arabia
22 Dec - 04 Jan	IndiGo
10 Dec - 10 Jan	Air Arabia
31 Dec - 07 Jan	Air Arabia
10 Dec - 08 Jan	Air India
21 Dec - 23 Dec	Nepal Airlines
15 Dec - 24 Dec	Hahn Air Systems
20 Dec - 21 Dec	Turkish Airlines

Also check the deals for one-way flights from Kathmandu to London 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 Kathmandu to London in December from $536

Return flights