Cheapest return flights from Seattle to Amsterdam in September from $622

AirHint found the following cheapest return flights from Seattle (SEA) to Amsterdam (AMS) in September 2026 (see full year).

Return flights

04 Sep - 12 Sep Scandinavian Airlines
17 Sep - 01 Oct Air Canada
18 Sep - 06 Oct Scandinavian Airlines
03 Sep - 17 Sep Air Canada
14 Sep - 28 Sep Turkish Airlines
14 Sep - 28 Sep Delta direct
03 Sep - 17 Sep Air France direct
17 Sep - 01 Oct Air France direct
04 Sep - 12 Sep Virgin Atlantic direct

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

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