It is my recommendation to purchase a Priority Pass membership; therefore, you can use the Alaska Airlines Boardroom Lounge. Or you can purchase a day pass (before the lounge went into the Priority Pass program, the cost for a day pass was $ 25...I think that it is now $ 30).

When the America West\US Airways gates was in terminal B, I used to go into the CO club all of the time. It is a very small club...there is no restrooms, you have to leave the club to go outside if you need to use a restrooms...the food selection is very limited...there is only three workspaces\deks, if there is a CO flight, the club can be very tight.

The Alaska Airlines lounge is two stories. The selection of food is average to above average like having blueberry sconnes during the morning hours. There are plenty of workspaces with high-tech telephones. There is both hard-wired and wireless Internet. Since SEA is the main hub for Alaska Airlines, the lounge is very nice.