How do I drive to the SeaTac Rental Car Facility from Downtown Seattle, Bellevue, and Tacoma?

Detailed answer

To return your rental car to the SeaTac Rental Car Facility, follow these step-by-step driving directions from regional hubs: From Downtown Seattle (approximately 15 miles, 30-40 minutes via I-5 South), take I-5 South towards Portland, exit at 178B for International Blvd/Air Cargo Rd, and follow signs to the Rental Car Facility. From Bellevue (approximately 20 miles, 30-50 minutes via I-405), take I-405 South towards Renton, merge onto I-5 South, exit at 178B for International Blvd/Air Cargo Rd, and follow signs to the facility. From Tacoma (approximately 25 miles, 35-55 minutes via SR-99 and I-5 North then South), take SR-99 North towards Seattle, merge onto I-5 North, continue on I-5 South, exit at 178B for International Blvd/Air Cargo Rd, and follow signs to the Rental Car Facility. The facility is located at 18200 International Blvd, SeaTac, WA 98188. Be aware that there may be a $5 daily fee for late returns after 11 PM.