To save on the cost of your flight from Portland to Zurich, book at least 51 days before your planned departure. Booking around this time can save you about 10% on the cost of this flight compared to booking a flight leaving this week. We have found prices from $869 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as $934.
Due to multiple factors, expect to potentially pay more when booking in July. For low rates, February can be a great choice for travel to Zurich. Flights to Zurich from Portland in February are about $841 on average during February, but can be found for as low as $580.
Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Portland to Zurich as you normally would.