As of 2015, flights on Southwest Airlines cannot be purchased through Expedia or any other third-party discount site, states Huffington Post. The only site that sells Southwest Airlines tickets is the official company website for Southwest Airlines.
Southwest Airlines is known for not listing its fares on other sites, notes Huffington Post. Customers who wish to compare fares between different airlines must search both Expedia and the Southwest Airlines website. Working directly with customers helps give the company better control over the experience, according to a Southwest Airlines rep.
Customers can find discounts and special offers on the Southwest Airlines website by clicking on Special Offers and Click N Save.