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

Return flights

17 Aug - 29 Aug	Air Canada
18 Aug - 26 Aug	Lufthansa
19 Aug - 26 Aug	United
12 Aug - 19 Aug	Air Canada
20 Aug - 29 Aug	Air Canada
15 Aug - 29 Aug	Delta
17 Aug - 24 Aug	Iberia
21 Aug - 28 Aug	United
05 Aug - 12 Aug	Iberia
08 Aug - 24 Aug	Air Canada
25 Aug - 01 Sep	United
31 Aug - 07 Sep	United
28 Aug - 04 Sep	United

Also check the deals for one-way flights from Phoenix 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 Phoenix to Madrid in August from $502

Return flights