At Portland International Airport, the alphabet of concourses now begins with the letter B. Gone is Concourse A, replaced by a brand-new Concourse B, with gates devoted to Alaska Airlines and Horizon Air regional routes. The completely redeveloped area is bigger, brighter, and bolder. The new concourse includes art installations by RYAN! Feddersen, floor-to-ceiling windows, plants, wood paneling, and unparalleled views of the airfield.