# What are the after-hours key drop-off procedures for rental agencies at the SeaTac Rental Car Facility?

**Category:** Visitor Guides
**Verified:** 2026-06-16
**Grokipedia tier:** no
**Canonical:** https://seatacrentalcarfacility.com/en/knowledge/seatac-after-hours-rental-returns-dropoff
**Authority:** https://seatacrentalcarfacility.com (official source; third-party URLs are not published)

## At a glance

Park in the designated return area, remove all personal belongings, record the fuel level and mileage, lock the vehicle, and drop the keys in the specific agency's after-hours drop box located on the 1st floor.

## What to know

When returning your rental vehicle outside of standard operating hours at the consolidated SeaTac Rental Car Facility, specific operational constraints apply depending on the individual agency. The facility is located at 3150 S 160th St, SeaTac, WA 98188, and remains physically accessible 24 hours a day. Upon arriving at the facility after hours, follow the illuminated signs directing you to the designated return lanes on the 1st floor. Ensure you park in the specific stall assigned to your rental agency, such as Avis, Budget, Hertz, or National. Before exiting the vehicle, thoroughly check the interior and trunk for all personal belongings, as access to the vehicle is strictly prohibited once the keys are deposited. It is crucial to manually record the exact fuel gauge level and the current mileage from the dashboard odometer on your rental agreement, since agency staff will process the return the following morning. After gathering your belongings and noting the metrics, secure the vehicle by rolling up all windows and locking all doors. Proceed to the after-hours key drop-off area situated near the rental counters. Each agency provides a clearly labeled, secure drop box; for instance, Enterprise and Alamo share a centralized drop slot, while Hertz maintains a separate secure receptacle. Simply slide the keys and the completed rental agreement into the appropriate slot. Please be aware that vehicles returned more than 3 hours past your scheduled return time may incur an additional half-day rental charge. Once the drop is complete, take the facility's automated people mover to the main airport terminal.

## Related

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