Find coaches from Ontario, CA to San Diego, CA, US

Next bus departures

Next departures from Ontario to San Diego on 12 November
Operated byVehicle typeDeparture timeDeparture locationTrip durationArrival timeArrival locationRecommendedPrice and booking link
FlixBusBus
Montclair (Ontario)
San Diego (Old Town-FlixBus)Cheapest
Los LimousinesBus
Ontario Convention Center
Cross Border Xpress CBX (USA)Fastest
FlixBus + Greyhound Lines, Inc.
Bus
Montclair (Ontario)
UCSD Health La Jolla StationNo tags
FlixBusBus
Montclair (Ontario)
UCSD Health La Jolla StationNo tags
Greyhound Lines, Inc.Bus
Montclair / Ontario / Claremont
Greyhound Bus StopNo tags
Los LimousinesBus
Ontario Convention Center
Cross Border Xpress CBX (USA)No tags
FlixBusBus
Montclair (Ontario)
UCSD Health La Jolla StationNo tags
FlixBus + Greyhound Lines, Inc.
Bus
Montclair (Ontario)
Greyhound Bus StopNo tags

Last refresh of the prices: Today at 9:50 AM PST.

Get from Ontario to San Diego

This route is served by bus only

The journey takes about 6 hours 40 minutes, and with fares starting at just R 522, it presents an excellent value for a comfortable ride.

28bus per day
6h 40mAverage duration
156 kmDistance
4kgCO₂ emissions

Frequently asked questions about travelling from Ontario, CA to San Diego, CA, US by bus

  1. How much does a bus ticket from Ontario to San Diego cost?

    The bus ticket price from Ontario to San Diego starts at R 522. The best way to find cheap bus tickets from Ontario to San Diego is to book your tickets as early as possible. Prices tend to rise as your travel date approaches, so book in advance to secure the best prices!

  2. How long is the bus ride from Ontario to San Diego?

    The average travel time between Ontario and San Diego is around 6h 40m, although the fastest bus will take about 3h 35m. This is the time it takes to travel the 157 km that separates the two cities.

  3. How many daily bus connections are there between Ontario and San Diego?

    The number of buses from Ontario to San Diego can differ depending on the day of the week. On average, there are 28 on this route. Some buses run direct routes, while others have layovers. Simplify your bus trip from Ontario to San Diego by comparing and selecting the bus that fits your travel style and budget on Busbud.

  4. Which bus companies travel from Ontario to San Diego?

    When taking the bus from Ontario to San Diego, you can travel comfortably and safely with Los Limousines, FlixBus, Greyhound.

  5. What are the departure and arrival stations when taking the bus from Ontario to San Diego?

    Buses travelling between Ontario and San Diego leave from Ontario California Bus Stop Carl's Jr & Teriyaki House or Ontario Tufesa Bus Stop and arrive at Mission Valley Sheraton, Old Town Courtyard Marriot, Downtown Holiday Inn.

Find cheapest prices for buses

Price is for a one-way ticket for one passenger and based on past searches.

Best price found
09/11
R 730
10/11
R 757
Today
R 704
12/11
R 616
13/11
R 634
14/11
R 721
15/11
R 537
16/11
No data
busbud logoThe cheapest trip from Ontario, CA to San Diego, CA, US was searched and found on 15 Nov 2025 with a price of R 537

To 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 R 537 to R 1 320 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 R 537, which is on 2025-11-15.

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.

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