Next departures
| Operated by | Vehicle type | Departure time | Departure location | Trip duration | Arrival time | Arrival location | Recommended | Price and booking link |
|---|---|---|---|---|---|---|---|---|
 | Ontario Station | Union Station | Cheapest | |||||
 | Montclair / Ontario / Claremont | Portland Curbside Bus Stop | Fastest | |||||
| Ontario Station | Union Station | No tags | |||||
FlixBus + Greyhound Lines, Inc. | Montclair (Ontario) | Portland Curbside Bus Stop | No tags | |||||
| Ontario Station | Union Station | No tags |
Last refresh of the prices: Yesterday at 9:19 PM PST.
Get from Ontario to Portland
The journey takes about 1 day, 4 hours 15 minutes, and with fares starting at just $537, it presents an excellent value for a comfortable ride.
Where are the popular stops in Ontario and Portland?
Stops in Ontario
- A
Ontario California Bus Stop Carl's Jr & Teriyaki House
1625 E 4th St, Ontario, CA 91764, USA - B
Ontario Tufesa Bus Stop
1739 S Euclid Ave, Ontario, CA 91762, USA
Stops in Portland
- B7411 Northwest Station Way, Portland OR 97209, USA
- C
NW Everett & NW 8th Ave
728 NW Everett St, Portland, OR 97209, USA - D
Lloyd Center
NE 13th Ave & Holladay, Portland, OR 97232, USA - E
Pearl District
7418 NW Station Way (across street), Portland, OR 97209, USA
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Frequently asked questions about travelling from Ontario, CA to Portland, OR by bus
Please note that schedules, routes, or operator details shown here may be updated or vary at the time of your trip.
How much is the bus ticket from Ontario to Portland?
The cheapest bus tickets from Ontario to Portland start from $537. The average price for this route is around $545. Busbud recommends that you book your tickets in advance for a better chance to get the lowest possible price.
How long is the bus ride from Ontario to Portland?
The average bus travel time from Ontario to Portland is 1d 4h, covering a distance of 1341 km. The quickest bus can get you there in 1d and is operated by Greyhound.
Which bus companies service the Ontario to Portland route?
What are the earliest and latest departure times for the bus from Ontario to Portland?
The earliest bus departs from Ontario to Portland at 4:20am. And the latest bus departs at 9:05pm.
What are the CO₂ emissions for the bus trip from Ontario to Portland?
A bus trip from Ontario to Portland generates an estimated 34 kg of CO₂, making it a highly eco-friendly travel option and a mode of travel recommended by Busbud.
What is the best bus company from Ontario to Portland?
According to Busbud customers, the highest-rated bus company on this route is Amtrak, with an average rating of 4.1 out of 5 stars based on 5696 reviews.
Which bus company has the best Wi-Fi from Ontario to Portland?
Based on Busbud reviews, the bus company Amtrak has the highest Wi-Fi rating with a score of 3.6.
Which bus company has the best on-time performance from Ontario to Portland?
According to Busbud traveller reviews, the most punctual bus company on this route is FlixBus, with a punctuality rating of 3.9 out of 5 stars.
Which bus company has the cleanest buses from Ontario to Portland?
According to Busbud traveller reviews, the bus company with the cleanest buses on this route is Amtrak, with a cleanliness rating of 4.5 out of 5 stars.
Find cheapest prices for buses
Price is for a one-way ticket for one passenger and based on past searches.
The cheapest trip from Ontario, CA to Portland, OR was searched and found on Jan 7, 2026 with a price of $322To save money and be sure you have the best seat, it's a good idea to buy your bus tickets from Ontario, CA to Portland, OR, as early as possible.
You can expect to pay from $322 to $976 for a bus ticket from Ontario, CA to Portland, OR based on the last 2 days. You can expect to find the cheapest price for the trip at $322 which is on 2026-01-07.
