The average bus between SeaTac and Tri-Cities takes 11h 56m and the fastest bus takes 9h 9m. The bus runs, on average, 6 times per week from SeaTac to Tri-Cities. 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 6 times a week between SeaTac and Tri-Cities. The earliest departure is at 4:20 AM at night, and the last departure from SeaTac is at 5:00 AM which arrives into Tri-Cities at 6:08 AM. All services require a transfer at SODO Busway & S Royal Brougham Way and take an average of 11h 56m. The schedules shown below are for the next available departures.
Want to know about travelling from SeaTac to Tri-Cities? 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 Tri-Cities. However, there are services departing from SeaTac station and arriving at Tri-Cities station via Pasco Bus Stop. The journey, including transfers, takes approximately 11h 56m.
SeaTac to Tri-Cities bus services, operated by Sound Transit, depart from Seattle Bus Station.
SeaTac to Tri-Cities bus services, operated by Sound Transit, arrive at Pasco Bus Stop station.
The distance between SeaTac and Tri-Cities is 270.8 km. The road distance is 396 km.
Greyhound USA operates a bus from Seattle Bus Station to Pasco Bus Stop once daily. Tickets cost $35–70 and the journey takes 4h 25m.
