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

Return flights

11 Aug - 26 Aug	Spirit Airlines
02 Aug - 23 Aug	Allegiant Air
09 Aug - 19 Aug	Air Canada
12 Aug - 19 Aug	Iberia
14 Aug - 21 Aug	United
20 Aug - 27 Aug	United
09 Aug - 20 Aug	Delta
16 Aug - 23 Aug	United
23 Aug - 30 Aug	United
08 Aug - 15 Aug	United
26 Aug - 02 Sep	United
29 Aug - 05 Sep	United

Also check the deals for one-way flights from Nashville 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 Nashville to Madrid in August from $534

Return flights