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

Return flights

30 Aug - 14 Sep	Pegasus Airlines
21 Aug - 25 Sep	Ryanair
27 Aug - 10 Sep	Ryanair
30 Aug - 13 Sep	Wizz Air
30 Aug - 15 Sep	KLM
31 Aug - 13 Sep	Air France
28 Aug - 07 Sep	Air Europa
31 Aug - 15 Sep	Qatar Airways
31 Aug - 12 Sep	Qatar Airways
20 Aug - 06 Sep	Iberia Express
24 Aug - 29 Aug	Vueling Airlines
21 Aug - 22 Aug	Ryanair
23 Aug - 30 Aug	Ryanair
21 Aug - 28 Aug	Vueling Airlines
18 Aug - 27 Aug	Wizz Air
22 Aug - 30 Aug	Wizz Air Malta
22 Aug - 29 Aug	Wizz Air Malta
18 Aug - 31 Aug	ITA Airways

Also check the deals for one-way flights from Madrid 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 Madrid to Kathmandu in August from $779

Return flights