The average bus between Ontario and Portland takes 24h 37m and the fastest bus takes 24h 15m. The bus service runs several times per day from Ontario to Portland. 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 twice daily between Ontario and Portland. The earliest departure is at 8:06 AM in the morning, and the last departure from Ontario is at 9:37 PM which arrives into Portland at 10:05 PM. All services require a transfer at Pomona Transit Center and take an average of 24h 37m. The schedules shown below are for the next available departures.
Arrives next day




24h 15m • 4 changes
Arrives next day




24h 33m • 4 changes
Arrives next day




24h 15m • 4 changes
Arrives next day




24h 33m • 4 changes
Arrives next day




24h 15m • 4 changes
Arrives next day




24h 33m • 4 changes
Want to know about travelling from Ontario to Portland? 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 Ontario to Portland. However, there are services departing from Ontario station and arriving at Portland station via Cal State LA W. The journey, including transfers, takes approximately 24h 37m.
Ontario to Portland bus services, operated by Omnitrans, depart from Pomona Transit Center station.
Ontario to Portland bus services, operated by Omnitrans, arrive at Portland Curbside Bus Stop station.
The distance between Ontario and Portland is 1,344 km. The road distance is 1,657 km.
You can take a bus from Holt @ Lemon to Portland Curbside Bus Stop via Pomona Transit Center, Cal State LA W, Cal State La Transit Center, Cesar E Chavez / Vignes, Los Angeles Union Station, and Sacramento Bus Station in around 25h 46m.