In general when looking for the cheapest flight to Portland, try to book your flight during the month of February for the best deal.
From most locations, to find the best deals on airfare, our data shows that users booking 60 days before flying found the cheapest flight to Portland.
From most locations, the cheapest day to fly to Portland is Thursday. Most users found that departing on a Sunday was most expensive.
Generally, when visiting Portland, noon flights represent the best value. afternoon flights are likely to have higher prices.