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

Return flights

19 May - 29 May	Iberia
13 May - 20 May	Iberia
17 May - 26 May	Air Canada
17 May - 28 May	Air Canada
18 May - 01 Jun	Air Canada
20 May - 03 Jun	Air Canada
04 May - 11 May	Finnair
16 May - 05 Jun	Finnair
16 May - 04 Jun	Finnair
06 May - 30 May	Air Canada
20 May - 30 May	Air Canada
25 May - 10 Jun	British Airways
08 May - 15 May	Iberia
03 May - 10 May	Iberia
22 May - 05 Jun	Delta
18 May - 25 May	Iberia
28 May - 04 Jun	Iberia

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.

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Cheapest return flights from Phoenix to Madrid in May from 430€

Return flights