Where exactly do I board the 24-hour rental car shuttle buses at the SeaTac airport baggage claim?

Detailed answer

All rental car agencies at Seattle-Tacoma International Airport (SEA) operate out of a centralized Rental Car Facility located approximately 2 miles away at 3150 S. 160th St., SeaTac, WA 98188. To reach this facility, passengers must utilize the free, dedicated 24-hour airport shuttle buses. These shuttles pick up passengers directly on the lower drive outside the baggage claim level (Level 1) at two specific boarding zones: 1) The North End zone is situated right outside the sliding glass doors near baggage carousel #15 (Exit Door 22), making it the most convenient spot for passengers flying with Alaska Airlines or other northern terminal carriers. 2) The South End zone is located outside the sliding glass doors near baggage carousel #1 (Exit Door 2), which is closest to international arrivals and southern terminal airlines. The shuttles depart frequently from these zones—running roughly every 3 to 5 minutes during peak travel periods and ensuring less than a 3-minute waiting time. The transit route takes about 5 to 8 minutes to complete. All shuttle buses are fully ADA-accessible, equipped with boarding ramps and dedicated securement spaces to comfortably transport 1 wheelchair passenger per vehicle load.