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

Return flights

08 Dec - 20 Jan	Delta
14 Dec - 25 Dec	Lufthansa
11 Dec - 16 Dec	Iberia
15 Dec - 25 Dec	Lufthansa
12 Dec - 12 Jan	United
24 Dec - 31 Dec	Lufthansa
18 Dec - 12 Jan	United
23 Dec - 30 Dec	Delta
17 Dec - 29 Dec	British Airways
01 Dec - 01 Jan	Frontier Airlines
22 Dec - 29 Dec	Delta
22 Dec - 30 Dec	Delta
20 Dec - 04 Jan	Frontier Airlines
27 Dec - 01 Jan	Frontier Airlines
03 Dec - 09 Dec	KLM
08 Dec - 12 Dec	Delta
14 Dec - 04 Jan	Delta

Also check the deals for one-way flights from Phoenix to Amsterdam 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 Amsterdam in December from 438€

Return flights