Cheapest one-way flights from Portland to Amsterdam in September from $375

AirHint found the following cheapest one-way flights from Portland (PDX) to Amsterdam (AMS) in September 2025 (see full year).

One-Way flights

22 Sep Spirit Airlines
10 Sep American Airlines
12 Sep Scandinavian Airlines
15 Sep Scandinavian Airlines
09 Sep Alaska Airlines
13 Sep Frontier Airlines
21 Sep Condor
10 Sep Delta direct
13 Sep Delta direct
12 Sep Delta direct

Also check the deals for return flights from Portland to Amsterdam in September.

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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