AirHint found the following cheapest return flights from Raleigh-durham (RDU) to Madrid (MAD) in August 2025 (see full year).

Return flights

25 Aug - 03 Sep	Spirit Airlines
12 Aug - 19 Aug	United
20 Aug - 27 Aug	jetBlue
13 Aug - 20 Aug	Iberia
04 Aug - 20 Aug	Iberia
17 Aug - 24 Aug	Spirit Airlines
27 Aug - 03 Sep	Iberia
04 Aug - 08 Aug	jetBlue
25 Aug - 01 Sep	United
23 Aug - 30 Aug	United
05 Aug - 12 Aug	Iberia
11 Aug - 18 Aug	United
07 Aug - 14 Aug	Iberia
29 Aug - 05 Sep	United

Also check the deals for one-way flights from Raleigh-durham to Madrid 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 Raleigh-durham to Madrid in August from $607

Return flights