The average bus between Seattle and Southwest takes 4h 52m and the fastest bus takes 4h 6m. The bus service runs several times per day from Seattle to Southwest. 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 4 times a day between Seattle and Southwest. The earliest departure is at 7:40 AM in the morning, and the last departure from Seattle is at 9:15 PM which arrives into Southwest at 1:25 AM. All services require a transfer at Portland Curbside Bus Stop and take an average of 4h 52m. The schedules shown below are for the next available departures.

4h 46m • 1 change
5h 26m • 1 change
4h 53m • 1 changeArrives next day

4h 21m • 1 change
4h 46m • 1 change
5h 26m • 1 change
4h 53m • 1 changeArrives next day

4h 21m • 1 change
4h 46m • 1 change
5h 26m • 1 change
4h 53m • 1 changeArrives next day

4h 21m • 1 change
4h 43m • 1 change
5h 28m • 1 change
4h 48m • 1 changeArrives next day

4h 19m • 1 changeWant to know about travelling from Seattle to Southwest? 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 Seattle to Southwest. However, there are services departing from Seattle Bus Station and arriving at W Powell & Powell Loop station via Portland Curbside Bus Stop station. The journey, including transfers, takes approximately 4h 52m.
Seattle to Southwest bus services, operated by Flixbus USA, depart from Seattle Bus Station.
Seattle to Southwest bus services, operated by Portland TriMet, arrive at W Powell & Powell Loop station.
The distance between Seattle and Southwest is 236.8 km. The road distance is 290 km.
You can take a bus from Seattle Bus Station to W Powell & Powell Loop via Portland Curbside Bus Stop and NW 5th & Davis in around 4h 58m.