The average bus between SeaTac and Lacey takes 2h 10m and the fastest bus takes 1h 46m. There is a bus service every few hours from SeaTac to Lacey. The journey time may be longer on weekends and holidays; use the search form on this page to search for a specific travel date.
Buses run every 2 hours between SeaTac and Lacey. The earliest departure is at 5:33 AM in the morning, and the last departure from SeaTac is at 5:38 PM which arrives into Lacey at 7:49 PM. All services require a transfer, and take on average 2h 10m. The schedules shown below are for the next available departures.

1h 57m • 1 change

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1h 59m • 1 change

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1h 59m • 1 change
Want to know about travelling from SeaTac to Lacey? We have put together a list of the most frequently asked questions from our users such as: What is the cheapest mode of transport? What is the quickest option? How much do tickets usually cost? and many more.
No, there is no direct bus from SeaTac to Lacey. However, there are services departing from SeaTac station and arriving at Lacey station via SR 512 P&R - Zone H. The journey, including transfers, takes approximately 2h 10m.
SeaTac to Lacey bus services, operated by Sound Transit, depart from SeaTac Station.
SeaTac to Lacey bus services, operated by Sound Transit, arrive at Lacey Transit Center station.
The distance between SeaTac and Lacey is 61.1 km. The road distance is 85 km.
You can take a bus from SeaTac Station to Lacey Transit Center via SR512 Park & Ride - Zone G in around 2h 29m.