For flights between seattle and Hawaii - does anyone know how the premium class upgrade pricing works?
I see the upgrade prices go down as the day of travel nears (going from over $100 down to the 60s). How does this work? Are there specific timelines when Alaska drops the prices? Or is it based on availability of seats? If it is time based, would it be cheapest to upgrade at the airport?
Curious if there are specific tiers of pricing.