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

Return flights

10 Dec - 17 Dec	Lufthansa
12 Dec - 24 Dec	American Airlines
12 Dec - 23 Dec	Iberia
14 Dec - 24 Dec	Lufthansa
13 Dec - 24 Dec	Lufthansa
13 Dec - 23 Dec	British Airways
15 Dec - 24 Dec	Delta
15 Dec - 25 Dec	Delta
13 Dec - 25 Dec	British Airways
14 Dec - 25 Dec	British Airways
15 Dec - 12 Jan	British Airways
27 Dec - 09 Jan	Frontier Airlines
21 Dec - 11 Jan	Frontier Airlines
18 Dec - 05 Jan	Frontier Airlines
20 Dec - 06 Jan	Frontier Airlines
20 Dec - 05 Jan	Spirit Airlines
22 Dec - 04 Jan	Frontier Airlines
31 Dec - 07 Jan	Iberia
24 Dec - 01 Jan	Frontier Airlines
27 Dec - 03 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 $586

Return flights