Are there ongoing construction delays at the SeaTac Rental Car Facility, and how much extra time should I allow?

Travelers using the Seattle-Tacoma International Airport (SeaTac) Consolidated Rental Car Facility should be acutely aware of ongoing facility construction that is significantly impacting traffic flow. Major infrastructure upgrades near the facility located at 3150 S 160th St are currently underway, leading to severe bottlenecks and lane reductions on the primary access roads. During peak travel hours, specifically between 7:00 AM to 9:00 AM and 4:00 PM to 6:00 PM, vehicles entering and exiting the consolidated facility have experienced delays of up to 30 to 45 minutes. This construction project, which is scheduled to continue through December 2024, affects both private vehicles accessing the rental car return area and the dedicated shuttle buses traveling to and from the main terminal. To avoid missing flights or failing to pick up rental cars on time, it is strongly recommended that all travelers add a minimum buffer of 45 minutes to their normal travel time. Pay close attention to posted detour signs and digital highway advisory signs on Interstate 5 and State Route 518, as designated routes may shift daily depending on the active construction phase. Planning ahead and allowing ample extra time is absolutely essential for a smooth transit experience during this period.