1-866-829-1086 Southwest Airlines Las Vegas Office Southwest Airlines doesn't have a separate "office" in Las Vegas for public visits, but operates directly within Harry Reid International Airport (LAS) (Terminal 1, Gates C2/C3), with ticket counters opening 2 hours before the first flight, handling all customer service, ticketing, and baggage needs at the airport itself. For career or corporate inquiries, check the Southwest Airlines careers website.