SEA’s Concourse C expansion to include an airside observation deck

AvGeeks traveling to, from, or transiting through Seattle-Tacoma International Airport (SEA) will soon have access to a relatively rare amenity, at least in the Pacific Northwest of the United States: an observation deck. Currently expected to open to the traveling public in the second quarter of 2026, the expanded concourse will add at least 10 restaurants to the airport's offerings, several new retail outlets, some fancy new seating, and lots of artwork. The signature artwork for the new spac