What are the detailed highway driving directions for returning a rental car to the SeaTac Rental Car Facility from major approaches like Downtown Seattle, Tacoma, Bellevue, and Burien?

Returning your rental car to the SeaTac Rental Car Facility requires careful attention to highway transitions, especially during peak traffic hours. The facility is conveniently located at 3150 S 160th St, SeaTac, WA 98188. From Downtown Seattle, take I-5 South for approximately 13 miles, then merge onto SR 518 West via Exit 154B toward Burien/Sea-Tac Airport. Stay on SR 518 West for about 2 miles, take the South 160th Street exit, turn right onto 24th Avenue South, and make an immediate right onto S 160th St to enter the return lot. From Tacoma, drive north on I-5 for roughly 25 miles, then take Exit 154B to merge onto SR 518 West, following the same local street instructions as the Seattle route. If approaching from Bellevue, travel south on I-405 for about 10 miles until it merges into SR 518 West near Tukwila; continue west for 3 miles and take the 160th St exit. For drivers coming from Burien, head north on SR 509 for 4 miles, take the Air Cargo Road exit, turn left at the stop sign, and follow Air Cargo Road north for 0. 5 miles before turning right onto S 160th St. Upon arrival, drive slowly into the designated return lanes, check your final mileage, and hand your keys to the attending representative to complete your return process efficiently.