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

Return flights

30 Oct - 20 Nov	SWISS
30 Oct - 28 Nov	SWISS
30 Oct - 17 Nov	SWISS
30 Oct - 25 Nov	SWISS
12 Oct - 16 Nov	Brussels Airlines
30 Oct - 30 Nov	Air India
12 Oct - 13 Nov	Scandinavian Airlines
07 Oct - 21 Oct	Air India
08 Oct - 22 Oct	Air India
08 Oct - 23 Oct	Air India
07 Oct - 23 Oct	Air India
06 Oct - 23 Oct	Air India
06 Oct - 13 Oct	Air India
30 Oct - 24 Nov	Air India
13 Oct - 04 Nov	Air India
29 Oct - 27 Nov	Air India
01 Oct - 13 Oct	Air India
01 Oct - 23 Oct	Air India
08 Oct - 15 Oct	Air India
01 Oct - 12 Oct	Air India

Also check the deals for one-way flights from London to Kathmandu in October.

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 October from 583€

Return flights