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

Return flights

19 Aug - 16 Sep	Wizz Air UK
21 Aug - 17 Sep	Wizz Air UK
26 Aug - 30 Sep	Ryanair
25 Aug - 09 Sep	Wizz Air UK
29 Aug - 30 Sep	Wizz Air
25 Aug - 11 Sep	Wizz Air UK
19 Aug - 20 Sep	Wizz Air UK
19 Aug - 30 Sep	Wizz Air UK
31 Aug - 21 Sep	Wizz Air UK
22 Aug - 08 Sep	Wizz Air UK
05 Aug - 12 Aug	Wizz Air UK
12 Aug - 19 Aug	Wizz Air UK
13 Aug - 18 Aug	Wizz Air UK
09 Aug - 16 Aug	Wizz Air Malta
05 Aug - 15 Aug	Wizz Air UK
08 Aug - 12 Aug	Wizz Air UK
20 Aug - 27 Aug	Vueling Airlines
10 Aug - 17 Aug	Wizz Air UK
19 Aug - 26 Aug	Wizz Air UK
07 Aug - 21 Aug	Wizz Air UK

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 483€

Return flights