AirHint found the following cheapest return flights from Portland (PDX) to Amsterdam (AMS) in November 2025 (see full year).
Return flights
| 16 Nov - 06 Dec | Frontier Airlines | ||
| 19 Nov - 13 Dec | Hawaiian Airlines | ||
| 20 Nov - 27 Nov | WestJet | ||
| 21 Nov - 28 Nov | Frontier Airlines | ||
| 21 Nov - 28 Nov | Delta | direct |
Also check the deals for one-way flights from Portland to Amsterdam in November.
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