Yes you guys were correct! my mistake. The flights going from Boston to AK that I thought were direct actually stop in Seatle with the passengers staying on the same plane. The way the itineraries were showing up on kayak and other sights did not list the seatle stop unitl I clicked into the complete flight details.

Sorry about that.

Now I'm thinking about forking over the extra money to fly first class with AKAir so I don't have to bring a shoehorn to pry myself out of the coach seats haha