Which airports does Alaska Airlines flies between for Seattle-Denver?
For flights between Seattle and Denver, Alaska Airlines flies from the following airport routes: Seattle All Airports (SEA) to Denver International (DEN)
What do Alaska Airlines flights from Seattle to Denver cost?
One of Alaska Airlines cheapest prices for a Seattle to Denver flight we have right now is £ 51.
On average though, flights with Alaska Airlines cost £ 54.97 for the route Seattle to Denver, though it depends a lot on the season and how far in advance you book your tickets.