Wondering if Southwest Airlines flies to DCA? Yes, Southwest operates out of Ronald Reagan Washington National Airport (DCA), making it a convenient option for travelers. Southwest Airlines at DCA flies from Terminal 1, offering easy access to check-in counters, security, and gates. Whether you’re traveling for business or leisure, Southwest provides multiple domestic routes from DCA. In this guide, learn about Southwest’s routes, amenities, and tips for a smooth travel experience. If you’re asking, “What terminal is Southwest Airlines at DCA Airport?”, Terminal 1 is the answer. Enjoy a hassle-free journey through one of the most accessible airports in the nation’s capital!