AirHint found the following cheapest return flights from Austin (AUS) to Madrid (MAD) in May 2026 (see full year).

Return flights

06 May - 10 May	British Airways
13 May - 20 May	Air France
04 May - 11 May	Iberia
09 May - 16 May	Iberia
13 May - 24 May	Delta
21 May - 26 May	Iberia
19 May - 26 May	Iberia
27 May - 03 Jun	British Airways
14 May - 21 May	Iberia
24 May - 12 Jun	Air Canada
30 May - 13 Jun	British Airways
29 May - 11 Jun	Air Canada
29 May - 05 Jun	Iberia
31 May - 14 Jun	Spirit Airlines
24 May - 31 May	Iberia

Also check the deals for one-way flights from Austin to Madrid in May.

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 Austin to Madrid in May from $535

Return flights