The average bus between Portland and Ontario takes 28h 1m and the fastest bus takes 26h 58m. The bus service runs several times per day from Portland to Ontario. 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 Portland and Ontario. The earliest departure is at 12:35 AM at night, and the last departure from Portland is at 6:50 PM which arrives into Ontario at 9:48 PM. All services require a transfer at Sacramento Bus Station and take an average of 28h 1m. The schedules shown below are for the next available departures.
Arrives next day



27h 38m • 3 changes
Arrives next day



26h 58m • 3 changes
Arrives next day



27h 38m • 3 changes
Arrives next day



26h 58m • 3 changes
Want to know about travelling from Portland to Ontario? 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 Portland to Ontario. However, there are services departing from Portland station and arriving at Ontario station via Sacramento Bus Station station. The journey, including transfers, takes approximately 28h 1m.
Portland to Ontario bus services, operated by Greyhound USA, depart from Portland Curbside Bus Stop station.
Portland to Ontario bus services, operated by Greyhound USA, arrive at Pomona Transit Center station.
Book your Portland to Ontario bus tickets online with Greyhound USA, Foothill Transit and Omnitrans.
The distance between Portland and Ontario is 1,344 km. The road distance is 1,633 km.
You can take a bus from Portland Curbside Bus Stop to Holt @ Palm via Sacramento Bus Station, Los Angeles Union Station, Union Station Patsaouras Bus Plaza E, and Pomona Transit Center in around 23h 45m.