What is the difference between the North and South Terminal shuttle lines from the SeaTac Rental Car Facility?

When departing from Level 5 of the SeaTac Rental Car Facility, travelers can access separate shuttle buses serving the North and South Terminals of Seattle-Tacoma International Airport. The shuttle buses operate on a regular schedule, with departures every 6-10 minutes, depending on the time of day and demand. The journey takes approximately 10-15 minutes to reach either terminal. The North Terminal shuttle services airlines such as Alaska, Delta, and American Airlines, while the South Terminal shuttle serves airlines like Southwest and Frontier. It's essential for returning travelers to ensure they board the correct shuttle to avoid delays. The shuttle schedule is typically available on the rental car facility's website and at information boards throughout the facility. Travelers can also contact their rental car company for specific shuttle information. The SeaTac Rental Car Facility is located at 18200 International Blvd, SeaTac, WA 98188, and is approximately 2 miles from the airport terminals.