Port of Seattle
10 June 2026
Inspired by the natural landscapes of the Pacific Northwest, the iconic new addition to the C Concourse will elevate the passenger experience at Seattle-Tacoma International Airport (SEA), capping off another major improvement under the Upgrade SEA umbrella.
The redesigned C Concourse Expansion is located between the C and D Concourses. Four new floors rise from the former footprint of nonpublic space that primarily housed offices and tenant storage. Now, this open atrium welcomes travelers with ten new dining and retail options, six new SEA Sparks Incubator Program retail kiosks, the Tree at C and Grand Stairs, an Interfaith Prayer and Meditation Room, a Sensory Room, a Nursing Room, a performance area, and an airfield observation area called The Lookout at C...
