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

Return flights

09 May - 19 May	Finnair
06 May - 22 May	Iberia
05 May - 12 May	Iberia
19 May - 24 Jun	British Airways
25 May - 11 Jun	American Airlines
10 May - 17 May	Iberia
20 May - 16 Jun	Finnair
25 May - 01 Jun	Iberia
22 May - 29 May	Iberia
15 May - 22 May	Iberia
28 May - 24 Jun	British Airways
30 May - 20 Jun	Air Canada
22 May - 05 Jun	WestJet

Also check the deals for one-way flights from Phoenix 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.

Book a cheap hotel in Madrid

Cheap car rent in Madrid

Cheapest return flights from Phoenix to Madrid in May from $564

Return flights