Southwest Airlines is based out of Salt Lake City International Southwest Airlines SLC Terminal Passengers can enjoy a number of facilities at this airport, such as dining options, retail stores, and cozy seating places. Southwest, which is well-known for its effective service, guarantees a seamless boarding and check-in process. Southwest offers regular flights to major destinations throughout the United States, affordable pricing, and a customer-friendly experience for passengers flying domestically. Arriving at least two hours prior to departure is advised in order to give enough time for check-in, security checks, and any possible delays.