Airline focuses on the ups and downs of passengers and Southwest's staff and crew at Los Angeles International (LAX), Chicago Midway, Baltimore/Washington International, and Houston Hobby airports. Follow Southwest's staff and crew, from the customer-focused flight crews to the hard-working ground crews who are often on the receiving end of a frustrated customer's wrath. America's fourth-largest carrier, Southwest Airlines promotes the concept of low-cost, no-frills travel and carries 65 million passengers every year.