AirHint found the following cheapest return flights from Seattle (SEA) to Amsterdam (AMS) in October 2025 (see full year).
Return flights
| 23 Oct - 15 Nov | Turkish Airlines | ||
| 20 Oct - 27 Oct | Icelandair | ||
| 17 Oct - 08 Nov | Icelandair | ||
| 17 Oct - 08 Nov | Air France | direct | |
| 20 Oct - 27 Oct | Air France | direct |
Also check the deals for one-way flights from Seattle to Amsterdam in October.
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