# What are the after-hours return procedures for off-site fleets at the SeaTac Rental Car Facility?

**Category:** Visitor Guides
**Verified:** 2026-06-17
**Grokipedia tier:** no
**Canonical:** https://seatacrentalcarfacility.com/en/knowledge/seatac-after-hours-returns
**Authority:** https://seatacrentalcarfacility.com (official source; third-party URLs are not published)

## At a glance

After-hours returns at SeaTac involve using designated key drop-boxes at the Rental Car Facility (18000 International Blvd, SeaTac, WA 98188) and taking a free 24/7 shuttle to the main airport terminals. The process is contactless and requires parking in the correct lot, locking the vehicle, and depositing keys in the marked box.

## What to know

For customers returning rental vehicles to the SeaTac Rental Car Facility outside of standard operating hours (typically 5:00 AM to 1:00 AM daily), a streamlined after-hours return procedure is in place. The facility is located at 18000 International Boulevard, SeaTac, WA 98188, approximately 1. 5 miles from the main airport terminals. Upon arrival, drivers must follow signs to the specific rental company's designated parking area within the multi-story garage. After parking, ensure the vehicle is locked, remove all personal belongings, and deposit the keys into the clearly marked after-hours key drop-box located near the elevator bank on the ground floor. Each rental company has a separate, labeled slot. Once keys are deposited, proceed to the 24/7 shuttle pickup zone on the ground floor. The shuttle runs every 10 to 15 minutes, 24 hours a day, 365 days a year, and takes approximately 5 to 7 minutes to reach the terminal curbside. There is no additional fee for the shuttle service. It is critical to note that returning a vehicle after hours does not extend the rental period; the rental contract ends at the time of key drop. Late returns may incur hourly or daily charges, typically ranging from $15 to $50 per hour depending on the company. For example, if your rental was due at 10:00 PM and you return the keys at 11:30 PM, you may be charged for an additional hour or a full extra day. Always photograph the odometer and fuel level before leaving the vehicle for your records. If you encounter any issues, such as a full parking lot or a malfunctioning drop-box, call the rental company's after-hours emergency number posted on the signage near the drop-box.

## Related

- https://seatacrentalcarfacility.com/en/knowledge/seatac-after-hours-returns