What are the specific freeway driving routes and lane navigation instructions for returning a rental car to the SeaTac Rental Car Facility using SR 518 and SR 99/Pacific Hwy South?

When returning your vehicle to the SeaTac Rental Car Facility, precise lane navigation is crucial whether you are arriving from SR 518 or SR 99/Pacific Hwy South. If you are traveling westbound on SR 518 from Interstate 5 or Interstate 405, take Exit 1 for SR 99/Pacific Hwy South toward Burien. Merge right onto SR 99 South and immediately move into the far left lane. Travel approximately 0. 5 miles south on SR 99. You will approach the facility located at 3150 S 160th St. The primary entrance requires you to turn left across northbound SR 99 traffic into a dedicated left-hand return lane. Exercise caution as this left-turn pocket can back up during peak hours, with average wait times of 3 to 5 minutes. Alternatively, if you are already traveling southbound on SR 99/Pacific Hwy South from the SeaTac Airport area or International Boulevard, remain in the left lane after passing the 170th Street intersection. The facility entrance will appear on your immediate left. For renters approaching northbound on SR 99, you must pass the facility and make a legal U-turn at the S 152nd Street traffic light, then navigate back north to access the right-hand entrance lane, which is strictly designated for northbound SR 99 traffic only. Always reduce your speed to 10 mph when entering the facility grounds and follow the overhead return signs to your specific rental company's designated parking bay.