Now that August is underway, it is worth examining Southwest Airlines' plans for the rest of the year. On September 24, Southwest will lift off from Austin Bergstrom International Airport (AUS) to Knoxville's McGhee Tyson Airport (TYS). BNA has become increasingly popular as a connecting airport, and it has progressively replaced Lambert St Louis International Airport (STL) for that role. With 62% of the traffic, Southwest is already the market leader, with most people connecting in Denver International Airport (DEN), Las Vegas' Harry Reid International Airport (LAS), and Phoenix. That is Orlando International Airport (MCO) to Norman Y. Mineta San José International Airport (SJC).