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

Return flights

19 Dec - 17 Jan	IndiGo
24 Dec - 31 Dec	IndiGo
16 Dec - 23 Jan	IndiGo
09 Dec - 05 Jan	Air India
15 Dec - 23 Jan	IndiGo
21 Dec - 12 Jan	IndiGo
23 Dec - 30 Dec	IndiGo
10 Dec - 12 Dec	IndiGo
10 Dec - 24 Dec	IndiGo
31 Dec - 22 Jan	Air Arabia
20 Dec - 04 Jan	IndiGo
14 Dec - 19 Dec	IndiGo
10 Dec - 17 Dec	IndiGo
08 Dec - 15 Dec	IndiGo
25 Dec - 01 Jan	Air India

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 477€

Return flights