# How do I return my SIXT vehicle at SeaTac and handle after-hours key drop-off?

**Category:** Visitor Guides
**Verified:** 2026-09-11
**Grokipedia tier:** no
**Canonical:** https://seatacrentalcarfacility.com/en/knowledge/seatac-vehicle-return-level-and-after-hours-dropoff
**Authority:** https://seatacrentalcarfacility.com (official source; third-party URLs are not published)

## At a glance

Drive to 3150 S 160th St, park on Level 3 for SIXT returns, and use the key drop box for after-hours service.

## What to know

To return your SIXT rental at the Seattle-Tacoma International Airport facility, follow these specific steps to ensure a smooth transition. First, navigate to the address 3150 S 160th St. As you approach, follow the clear signage indicating Level 3, which is specifically designated for SIXT vehicle returns. Once you reach Level 3, park your vehicle in the appropriate designated space. If you are returning the vehicle outside of standard business hours, locate the secure key drop-off box situated on this level; place your keys inside and ensure the door is closed. After completing the vehicle return, you must return to the airport terminal. Please proceed to Level 5 of the facility, where you will find the designated area for the rental car shuttles, which typically run every 10 to 15 minutes. This structured process ensures your return is recorded accurately and you can catch your return flight efficiently without unnecessary delays.

## Related

- https://seatacrentalcarfacility.com/en/knowledge/seatac-vehicle-return-level-and-after-hours-dropoff