SEA Airport’s expanded C Concourse opens Thursday The concourse was expanded by 148,500 square feet – from 81,000 square feet to 229,500.Share this: SEA Airport advances $2.5 billion overhaul of aging S ConcourseDateAugust 12, 2026In relation toKing 5 NewsSalvage work begins on tanker leaking oil off Oman, risk firm saysDateAugust 13, 2026In relation toAl-JazeeraBarnes & Noble set to reopen in downtown Seattle, signaling retail momentum, DSA saysDateApril 8, 2026In relation toKing 5 News