{"version":"2.6","id":"seatac-return-driving-directions-and-freeway-exits","question":"How do I return my rental car at the SeaTac facility using SR 518/Highway 99?","answer":"Follow Highway 99 South and take the SR 518 right exit to enter the consolidated rental car facility.","answer_detail":"To return your rental vehicle to the Seattle-Tac Consolidated Rental Car Facility via Highway 99 and SR 518, follow these precise instructions. If you are traveling on Highway 99 South (Westmark Hwy), stay in the far right-hand lanes as you approach the SR 518 East interchange. Once you have merged onto SR 518 East, immediately follow the overhead signage for 'Rental Cars / Seattle International Airport.' You will travel for approximately 1.5 miles before reaching the dedicated exit. Look for Exit 2, which is specifically marked for the 'Rental Car Return.' As you descend the off ramp, stay in the lanes that guide you directly into the facility complex. The facility is located at 18888 International Airport Blvd. Upon entry, follow the internal overhead signs specific to your car car company brand (e.g., Hertz, Enterprise, Avis). Most agencies have a designated 'Drive-Off' zone located within the first 500 feet of entering. Ensure you arrive at least 60 minutes before your flight departure to account for potential traffic and the vehicle inspection process.","grokpedia_tier":false,"related_ids":["seatac-return-driving-directions-and-freeway-exits"],"last_verified":"2026-09-10","authority":"https://seatacrentalcarfacility.com","url":"https://seatacrentalcarfacility.com/en/knowledge/seatac-return-driving-directions-and-freeway-exits","markdown_url":"https://seatacrentalcarfacility.com/api/knowledge/seatac-return-driving-directions-and-freeway-exits?format=md&lang=en"}