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

Return flights

30 Dec - 10 Jan	British Airways
08 Dec - 15 Dec	Iberia
27 Dec - 17 Jan	British Airways
26 Dec - 08 Jan	British Airways
22 Dec - 01 Jan	British Airways
18 Dec - 25 Dec	Iberia
13 Dec - 20 Dec	Iberia
23 Dec - 03 Jan	British Airways
20 Dec - 06 Jan	Delta
23 Dec - 30 Dec	Iberia
20 Dec - 05 Jan	Delta
28 Dec - 04 Jan	Iberia

Also check the deals for one-way flights from Phoenix to Madrid in December.

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 December from 554€

Return flights