# How do I navigate from the SeaTac Rental Car Facility to reach I-5 or I-405 for return?

**Category:** Visitor Guides
**Verified:** 2026-09-17
**Grokipedia tier:** no
**Canonical:** https://seatacrentalcarfacility.com/en/knowledge/seatac-return-route-navigation-and-highway-access
**Authority:** https://seatacrentalcarfacility.com (official source; third-party URLs are not published)

## At a glance

Use SR-518 West or Pacific Highway South (Hwy 99) to access I-5 and I-405.

## What to know

When returning your vehicle from the SeaTac Rental Car Facility, navigating the complex freeway system depends on your final destination. To reach I-5 North, exit the facility and follow signs for SR-518 West. This route typically spans approximately 2.5 miles and provides a direct merge onto I-5 North. If you are heading toward the I-405 corridor or the Bellevue area, you should head toward Pacific Highway South (Highway 99). This major arterial serves as a vital connector, allowing you to access the I-405 on ramp within a 3-mile drive. Be advised that during peak commute hours (7:00 AM - 9:00 AM and 3:00 PM - 6:00 PM), travel times can increase by 15 to 20 minutes. Always ensure you are in the correct lane early, as the merge points for SR-518 and Highway 99 can be busy. Follow all posted traffic signs to ensure a smooth transition back to the freeway network.

## Related

- https://seatacrentalcarfacility.com/en/knowledge/seatac-return-route-navigation-and-highway-access