The average bus between SeaTac/Airport Station and Chehalis takes 4h 4m and the fastest bus takes 3h 11m. The bus service runs several times per day from SeaTac/Airport Station to Chehalis. 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 4 hours between SeaTac/Airport Station and Chehalis. The earliest departure is at 5:03 AM in the morning, and the last departure from SeaTac/Airport Station is at 3:08 PM which arrives into Chehalis at 7:14 PM. All services require a transfer at SR512 Park & Ride - Zone G and take an average of 4h 4m. The schedules shown below are for the next available departures.



3h 11m • 3 changes



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3h 41m • 3 changes



3h 11m • 3 changes



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3h 41m • 3 changes



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3h 41m • 3 changes
Want to know about travelling from SeaTac/Airport Station to Chehalis? 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/Airport Station to Chehalis. However, there are services departing from SeaTac/Airport Station station and arriving at Chehalis station via SR 512 P&R - Zone H. The journey, including transfers, takes approximately 4h 4m.
SeaTac/Airport Station to Chehalis bus services, operated by Sound Transit, depart from SeaTac Station.
SeaTac/Airport Station to Chehalis bus services, operated by Sound Transit, arrive at Mellen Street e-Transit Station - 1401 Mellen St..
The distance between SeaTac/Airport Station and Chehalis is 100.8 km. The road distance is 141 km.
You can take a bus from SeaTac Station to United State Postal Service - NW Cascade Ave & Center St. via SR512 Park & Ride - Zone G, Olympia Transit Center - Bay M, Olympia Transit Center - 280 Washington St NE, and Mellen Street e-Transit Station - 1401 Mellen St. in around 4h 41m.