How do I access the Rental Car Facility return lanes from major freeways at SeaTac?

To access the Rental Car Facility return lanes from major freeways at SeaTac, follow these steps: First, take SR-518 West towards Seattle. Continue on SR-518 West for approximately 2. As you approach the International Blvd/SR-99 South exit, prepare to exit by moving into the right lanes. Take the exit onto International Blvd/SR-99 South. After exiting, stay in the right lane and follow the signs directing you to the Rental Car Return. The right-hand entrance is clearly marked and is approximately 0. 5 miles from the exit. As you approach the Rental Car Facility, you will see signs indicating the return lanes. The entire journey should take around 10-15 minutes depending on traffic conditions. The Rental Car Facility is open 24/7 to accommodate returns at any time. Be sure to follow the signs and lane markings to ensure a smooth return process. The address for the Rental Car Facility is 18200 International Blvd, SeaTac, WA 98188.