The average bus between Tualatin and SeaTac takes 6h 31m and the fastest bus takes 4h 24m. The bus service runs several times per day from Tualatin to SeaTac. 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 3 times a day between Tualatin and SeaTac. The earliest departure is at 6:38 AM in the morning, and the last departure from Tualatin is at 9:46 PM which arrives into SeaTac at 9:35 AM. All services require a transfer at Tigard Transit Center and take an average of 6h 31m. The schedules shown below are for the next available departures.


5h 32m • 2 changes


4h 49m • 2 changes


4h 48m • 2 changes
Arrives next day


11h 49m • 2 changes


4h 47m • 2 changes


4h 39m • 2 changes


4h 24m • 2 changes
Arrives next day


11h 49m • 2 changes


4h 47m • 2 changes


4h 24m • 2 changes
Arrives next day


11h 49m • 2 changes


4h 47m • 2 changes


4h 24m • 2 changes
Arrives next day


11h 49m • 2 changes
Want to know about travelling from Tualatin to SeaTac? 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 Tualatin to SeaTac. However, there are services departing from Tualatin station and arriving at SeaTac station via Seattle Tacoma Intl Airport. The journey, including transfers, takes approximately 6h 31m.
Tualatin to SeaTac bus services, operated by Portland TriMet, depart from Portland Curbside Bus Stop station.
Tualatin to SeaTac bus services, operated by Portland TriMet, arrive at Seattle Tacoma Intl Airport station.
The distance between Tualatin and SeaTac is 232.4 km. The road distance is 286 km.
Flixbus USA operates a bus from Portland Curbside Bus Stop to Seattle Tacoma Intl Airport 3 times a day. Tickets cost $24–45 and the journey takes 3h 10m. Greyhound USA also services this route once daily.