Southwest Airlines Reservations are although trouble-free and fast to be done but then sometimes booking online can be a hectic task to do. Famous for its low-priced carrier, Southwest Airlines was originally known as Southwest Airline Reservations. You can get the most out of your online reservation. Once you sign up, you will be capable to book your airline tickets online, earn rewards and save your preferences for next time. When booking on the web site, you will receive an electronic ticket.