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

Return flights

30 Aug - 08 Sep	Iberia
30 Aug - 16 Sep	Iberia
25 Aug - 09 Sep	Wizz Air Malta
21 Aug - 25 Sep	ITA Airways
31 Aug - 18 Sep	Air Europa
17 Aug - 04 Sep	Iberia Express
31 Aug - 06 Sep	ITA Airways
25 Aug - 16 Sep	Etihad Airways
11 Aug - 01 Sep	Wizz Air Malta
16 Aug - 24 Aug	Wizz Air
01 Aug - 06 Aug	Wizz Air
02 Aug - 12 Aug	Wizz Air
12 Aug - 28 Aug	Wizz Air
16 Aug - 30 Aug	Wizz Air
01 Aug - 15 Aug	Wizz Air
17 Aug - 30 Aug	Iberia Express
17 Aug - 24 Aug	Iberia Express
02 Aug - 20 Aug	Wizz Air
10 Aug - 30 Aug	Pegasus Airlines
16 Aug - 01 Sep	Wizz Air

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 $803

Return flights