Question : Interested in traveling in the next 30 days and want to get the lowest fare?
Answer : Since low prices are preferred, look at February 7th. As of January 23rd, the cheapest ticket sales are coming in 33% below the average price for this route, so you can spend that extra money on a fun experience in Seattle.
Question : How long are most people's visits to Seattle when they fly in from Portland?
Answer : Of course you're not most people, but if you were, you'd stay roughly eight days.
Question : Would you be willing to change your travel days if it saved you money?
Answer : The lowest-cost day to fly in February is Friday. Having flexibility in your travel plans means you can save, so be sure to plan ahead when possible.
Question : Are prices changing frequently for this route?
Answer : Flight prices for PWM to SEA fluctuate much more than most routes. The further out you book a route, the more likely you are to save.