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

Return flights

12 May - 21 May	KLM
13 May - 22 May	KLM
12 May - 19 May	Iberia
10 May - 15 May	Delta
07 May - 14 May	Iberia
06 May - 28 May	Air Canada
09 May - 24 May	Delta
15 May - 29 May	Delta
17 May - 25 May	Delta
26 May - 29 May	Delta
28 May - 09 Jun	United
26 May - 11 Jun	Delta
20 May - 22 Jun	Air Canada
19 May - 16 Jun	Delta
22 May - 05 Jun	Delta
28 May - 15 Jun	Air France
29 May - 07 Jun	Finnair
28 May - 07 Jun	Finnair
27 May - 03 Jun	Iberia
29 May - 15 Jun	Delta

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 473€

Return flights