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

Return flights

12 Aug - 19 Aug	ITA Airways
04 Aug - 10 Aug	ITA Airways
18 Aug - 31 Aug	KLM
04 Aug - 11 Aug	ITA Airways
06 Aug - 04 Sep	British Airways
21 Aug - 03 Sep	British Airways
20 Aug - 04 Sep	British Airways
19 Aug - 19 Sep	British Airways
10 Aug - 10 Sep	British Airways
13 Aug - 18 Aug	KLM
26 Aug - 31 Aug	KLM
31 Aug - 03 Sep	British Airways
31 Aug - 11 Sep	British Airways
08 Aug - 11 Aug	KLM
15 Aug - 27 Aug	British Airways
21 Aug - 31 Aug	KLM
22 Aug - 31 Aug	British Airways
04 Aug - 03 Sep	KLM
25 Aug - 01 Sep	KLM
22 Aug - 06 Sep	British Airways

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

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 August from $1181

Return flights