What are the shuttle routes from SeaTac Airport to the Rental Car Facility, and how do they vary by terminal and airline?

Detailed answer

The SeaTac Airport Rental Car Facility is conveniently connected to the North and South terminals via shuttle buses. Passengers arriving on Alaska Airlines and other domestic carriers typically depart from the North terminal, while international flights and some other carriers arrive at the South terminal. The shuttle bus frequency is every 10-15 minutes, with a travel time of approximately 5-10 minutes to the Rental Car Facility. The North terminal shuttle stops at gates 15-19, while the South terminal shuttle stops at gates 1-14 and the International arrivals area. Upon arrival at the Rental Car Facility, passengers can proceed to the designated car rental companies, which are located within walking distance of each other. The Rental Car Facility is open 24/7 and is located at 18200 International Blvd, SeaTac, WA 98188. It's worth noting that the shuttle service operates from 5:00 AM to 1:30 AM, with a frequency of every 10-15 minutes during peak hours and every 20-30 minutes during off-peak hours.