What are the freeway navigation instructions for reaching the SeaTac Rental Car Return entrance off International Blvd / SR 99 from I-5, SR 518, SR 509, and I-405?

Navigating to the SeaTac Rental Car Facility requires precise lane positioning, especially during peak traffic hours. From I-5 North or South, take Exit 154B for SR 518 West toward Burien/Sea-Tac Airport. Stay in the middle lane to avoid merging airport traffic. From I-405 South, it merges directly into SR 518 West; maintain the left lane as you approach the airport exits. If arriving via SR 509 North, take the SR 518 East exit toward Sea-Tac Airport, keeping right to merge. All routes converge on SR 518. Take Exit 1 for International Blvd / SR 99. At the traffic light at the end of the off-ramp, turn right onto S 176th St. Move into the left lane within 0. 2 miles and turn left onto International Blvd S. 3 miles south, pass the 24-hour gas station, and turn right onto S 160th St. The Rental Car Return entrance is located at 3150 S 160th St, SeaTac, WA 98188. Follow the clearly marked green signs for your specific rental company. The facility is open 24 hours a day, and the speed limit on the return ramp is strictly 10 MPH.