Next bus departures
| Operated by | Vehicle type | Departure time | Departure location | Trip duration | Arrival time | Arrival location | Recommended | Price and booking link |
|---|---|---|---|---|---|---|---|---|
Greyhound Lines, Inc. + FlixBus | Bus | Montclair / Ontario / Claremont | San Diego (Old Town-FlixBus) | Cheapest | ||||
 | Bus | Ontario Convention Center | Cross Border Xpress CBX (USA) | Fastest | ||||
 | Bus | Montclair (Ontario) | San Diego (Old Town-FlixBus) | No tags | ||||
FlixBus + Greyhound Lines, Inc. | Bus | Montclair (Ontario) | Greyhound Bus Stop | No tags | ||||
 | Bus | Montclair / Ontario / Claremont | Greyhound Bus Stop | No tags |
Last refresh of the prices: Yesterday at 07:24 PST.
Get from Ontario to San Diego
The journey takes about 6 hours 50 minutes, and with fares starting at just £25, it presents an excellent value for a comfortable ride.
Where are the popular stops in Ontario and San Diego?
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 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
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Frequently asked questions about travelling by bus from Ontario, CA to San Diego, CA, US
What's the distance between Ontario and San Diego by coach?
The distance between Ontario and San Diego by coach is approximately 98 miles (157 km).
How can I get from Ontario to San Diego without driving?
You can travel to San Diego from Ontario by coach, which provides a smooth ride and an affordable and convenient trip. Depending on your preferences, another alternative is to explore ridesharing trips.
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 San Diego, CA, US was searched and found on 29 Nov 2025 with a price of £27To save money and be sure you have the best seat, it's a good idea to buy your bus tickets from Ontario, CA to San Diego, CA, US as early as possible.
You can expect to pay from £27 to £58 for a bus ticket from Ontario, CA to San Diego, CA, US based on the last 2 days. You can expect to find the cheapest price for the trip at £27, which is on 2025-11-29.
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.
