Cheapest return flights from Seattle to Amsterdam in December from $683

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

Return flights

08 Dec - 31 Dec Aer Lingus
12 Dec - 27 Dec Icelandair
15 Dec - 05 Jan Icelandair
17 Dec - 10 Jan Icelandair
08 Dec - 31 Dec Air France direct
17 Dec - 23 Dec Icelandair
18 Dec - 24 Dec Icelandair
28 Dec - 02 Jan WestJet
23 Dec - 03 Jan Alaska Airlines
14 Dec - 03 Jan Icelandair
19 Dec - 04 Jan Sun Country Airlines
21 Dec - 04 Jan Aer Lingus
17 Dec - 10 Jan Air France direct
17 Dec - 23 Dec Delta direct
18 Dec - 24 Dec Delta direct
23 Dec - 04 Jan WestJet
15 Dec - 05 Jan Air France direct

Also check the deals for one-way flights from Seattle to Amsterdam in December.

Skyscanner

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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