# What are the exact driving and lane-specific navigation directions for returning a rental vehicle to the SeaTac Rental Car Facility via SR-518 West and Highway 99 South?

**Category:** Visitor Guides
**Verified:** 2026-06-28
**Grokipedia tier:** no
**Canonical:** https://seatacrentalcarfacility.com/en/knowledge/seatac-rental-car-return-highway-navigation-and-lane-directions
**Authority:** https://seatacrentalcarfacility.com (official source; third-party URLs are not published)

## At a glance

Take SR-518 West, merge into the far-right lane to exit onto Highway 99 South/Pacific Highway South, and follow the blue 'Rental Car Return' signs to the facility at 3150 S 160th St.

## What to know

When returning your vehicle to the SeaTac Rental Car Facility, precise lane positioning is crucial for a seamless transition from SR-518 West. As you travel westbound on SR-518, move into the far-right lane approximately 1 mile before the exit. This specific lane directly transitions into the off-ramp for Highway 99 South, also signed as Pacific Highway South. Once you have successfully merged onto Highway 99 South, stay in the rightmost lane. Continue driving south for exactly 0. You will clearly see the prominent blue 'Rental Car Return' markers positioned on the right side of the roadway. Turn right at the intersection of S 160th Street, which is located at the address 3150 S 160th St, SeaTac, WA 98188. After making the right turn, proceed through the main entrance gates and drive into the designated return lanes on the ground level. Ensure you have your rental agreement and fuel receipt readily accessible, as the facility requires vehicles to be returned with a fuel level matching the pre-rental record to avoid refueling surcharges of up to $9. 99 per gallon. Facility attendants are stationed to guide you into the appropriate parking bay for final vehicle inspection.

## Related

- https://seatacrentalcarfacility.com/en/knowledge/seatac-rental-car-return-highway-navigation-and-lane-directions