Next bus departures
| Operated by | Vehicle type | Departure time | Departure location | Trip duration | Arrival time | Arrival location | Recommended | Price and booking link |
|---|---|---|---|---|---|---|---|---|
 | Bus | San Diego (Old Town-FlixBus) | Montclair (Ontario) | Cheapest | ||||
 | Bus | Cross Border Xpress CBX (USA) | Ontario Convention Center | Fastest | ||||
FlixBus + Greyhound Lines, Inc. | Bus | San Diego (Old Town-FlixBus) | Montclair / Ontario / Claremont | No tags | ||||
| Bus | UCSD Health La Jolla Station | Montclair (Ontario) | No tags | ||||
 | Bus | Greyhound Bus Stop | Montclair / Ontario / Claremont | No tags |
Last refresh of the prices: Yesterday at 2:29 PM PST.
Get from San Diego to Ontario
The journey takes about 5 hours 55 minutes, and with fares starting at just R 550, it presents an excellent value for a comfortable ride.
Where are the popular stops in San Diego and Ontario?
Stops in San Diego
- A
Mission Valley Sheraton
1433 Camino del Rio S, San Diego, CA 92108, USA - B
Old Town Courtyard Marriot
2435 Jefferson St, San Diego, CA 92110, USA - C
Downtown Holiday Inn
1617 1st Ave, San Diego, CA 92101, USA - D
Greyhound Station
1313 National Ave, San Diego, CA 92101, USA - E
Market St. & Park Blvd
601 Park Boulevard, San Diego, CA 92101, USA - F
San Ysidro McDonald's
727 E San Ysidro Blvd, San Diego, CA 92173, USA
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
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Frequently asked questions about travelling from San Diego, CA, US to Ontario, CA by bus
Please note that timetables, routes, or operator details shown here may be updated or differ at the time of your trip.
How much is the bus ticket from San Diego to Ontario?
The cheapest bus tickets from San Diego to Ontario start at R 550. The average price for this route is around R 875. Busbud recommends booking your tickets in advance for the best chance of getting the lowest possible price.
How long is the bus journey from San Diego to Ontario?
The average bus journey time from San Diego to Ontario is 5h 55m, covering a distance of 179 km. The fastest bus gets you there in 3h 20m and is operated by Los Limousines.
Which bus companies service the San Diego to Ontario route?
Several major bus companies operate on this route with 16 buses available per day, including services from Los Limousines, FlixBus, Greyhound.
What is the earliest and latest departure time for the bus from San Diego to Ontario?
The earliest bus departs from San Diego to Ontario at 06:45. And the latest bus departs at 19:35.
What are the CO₂ emissions for the bus trip from San Diego to Ontario?
A bus trip from San Diego to Ontario produces an estimated 4 kg of CO₂, making it a highly eco-friendly travel option and Busbud’s recommended way to travel.
What is the best bus company from San Diego to Ontario?
According to Busbud customers, the highest-rated bus company on this route is FlixBus, with an average rating of 3.5 out of 5 stars based on 11638 reviews.
Which bus company has the best Wi-Fi from San Diego to Ontario?
Based on reviews on Busbud, the bus company FlixBus has the best Wi-Fi rating with a score of 2.7.
Which bus company offers the most punctual service from San Diego to Ontario?
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 San Diego to Ontario?
According to Busbud traveller reviews, the bus company with the cleanest buses on this route is FlixBus, with a cleanliness rating of 4.1 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 San Diego, CA, US to Ontario, CA was searched and found on 25 Dec 2025 with a price of R 556To save money and be sure you have the best seat, it's a good idea to buy your bus tickets from San Diego, CA, US to Ontario, CA as early as possible.
You can expect to pay from R 556 to R 909 for a bus ticket from San Diego, CA, US to Ontario, CA based on the last 2 days. You can expect to find the cheapest price for the trip at R 556, which is on 2025-12-25.
Usually Los Limousines will charge you higher prices for tickets closer to the departure date. To find the best prices, you should be flexible on your date of travel.
