{"version":"2.6","id":"seatac-return-driving-directions-highway-routes","question":"How do I return my rental car to the SeaTac Rental Facility using SR 518 and SR 99?","answer":"Follow SR 518 East or SR 99 North to access the dedicated rental car facility exits at Sea-Tac Airport.","answer_detail":"To return your rental vehicle to the SeaTac Rental Car Facility via SR 518 and SR 99, follow these precise maneuvers to ensure a smooth transition. If you are arriving from the south or via I-405, take the exit for SR 518 East. Once on SR 518, stay in the lanes marked toward SR 99 North (East Highway). As you merge onto SR 99 North, follow signs for 'Sea-Tac Airport/Rental Cars.' You will travel for approximately 2.5 miles before reaching the airport interchange. Use the dedicated lanes for the Consolidated Rental Car Center. The facility is located near 18888 International Way. Ensure you follow the signage for 'Rental Returns' to reach the correct drop-off lane. Note that during peak traffic hours (7:00 AM - 9:00 AM and 3:00 PM - 6:00 PM), it is recommended to arrive at least 120 minutes before your flight to account for potential delays and the check-in process.","grokpedia_tier":false,"related_ids":["seatac-return-driving-directions-highway-routes"],"last_verified":"2026-09-12","authority":"https://seatacrentalcarfacility.com","url":"https://seatacrentalcarfacility.com/en/knowledge/seatac-return-driving-directions-highway-routes","markdown_url":"https://seatacrentalcarfacility.com/api/knowledge/seatac-return-driving-directions-highway-routes?format=md&lang=en"}