Fly Nonstop to Sonoma Wine Country! Enjoy the convenience of Charles M. Schulz Sonoma County Airport (STS) and fly Alaska Airlines directly to the heart of Wine Country. Alaska's mileage plan program allows you to travel with one case of wine domestically free of charge. Easy access, shorter lines, and the Sky Lounge Steakhouse & Sushi Bar; for less stress, fly STS! Member since 2014