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

Return flights

01 Oct - 09 Oct	Turkish Airlines
08 Oct - 16 Oct	Turkish Airlines
05 Oct - 11 Oct	Turkish Airlines
29 Oct - 18 Nov	SWISS
12 Oct - 21 Oct	Turkish Airlines
03 Oct - 12 Oct	Turkish Airlines
24 Oct - 11 Nov	Eurowings
22 Oct - 11 Nov	SWISS
20 Oct - 18 Nov	SWISS
20 Oct - 11 Nov	SWISS
06 Oct - 20 Oct	Vueling Airlines
07 Oct - 12 Oct	SWISS
06 Oct - 13 Oct	Vueling Airlines
13 Oct - 20 Oct	LOT
19 Oct - 18 Nov	Air Serbia
21 Oct - 14 Nov	SWISS
22 Oct - 18 Nov	SWISS
29 Oct - 28 Nov	SWISS
12 Oct - 19 Oct	Turkish Airlines
26 Oct - 29 Nov	Aegean Airlines

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 $649

Return flights