Where Does Southwest Airlines Fly To – Southwest Airlines operates an extensive domestic and international network across 10 countries, primarily focusing on the United States, Mexico, the Caribbean, and Central America. As America’s largest low-cost carrier, Southwest serves over 120 destinations, including major hubs like Denver, Chicago Midway, Dallas Love Field, and Las Vegas. Popular international routes include Cancún, San José del Cabo, Punta Cana, and Nassau. Unlike legacy carriers, Southwest avoids traditional hubs, instead using a point-to-point system for flexible, nonstop routes. All flights are Boeing 737s, with no premium cabins but free checked bags and no change fees. Explore Southwest’s route map for affordable, no-frills travel across the Americas!