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

Next departures

Next departures from San Diego to Ontario on 31 October
Operated byVehicle typeDeparture timeDeparture locationTrip durationArrival timeArrival locationRecommendedPrice and booking link
Greyhound Lines, Inc.
Greyhound Bus Stop
Montclair / Ontario / ClaremontCheapest
Los Limousines
Cross Border Xpress CBX (USA)
Ontario Convention CenterFastest
FlixBus
San Diego (Old Town-FlixBus)
Montclair (Ontario)No tags
FlixBus + Greyhound Lines, Inc.
San Diego (Old Town-FlixBus)
Montclair / Ontario / ClaremontNo tags
Los Limousines
Cross Border Xpress CBX (USA)
Ontario Convention CenterNo tags

Last refresh of the prices: Today at 11:13 AM PDT.

Accepted payments

  • Visa
  • MasterCard
  • American Express
  • China Union Pay
  • Diners Club Canada
  • Discover Click to Pay
  • JCB payment
  • Klarna (Pay over time)
  • Google Pay

Get from San Diego to Ontario

busbud logoThis route is served by bus only

The journey takes about 5 hours 55 minutes, and with fares starting at just US$27, it presents an excellent value for a comfortable ride.

17bus per day
5h 55mAverage duration
179 kmDistance
4kgCO₂ emissions

Bus San Diego, CA, US to Ontario, CA: Trip Overview

Average ticket priceUS$45
Average bus trip duration5h 55m
Number of daily buses17
Earliest bus departure06:45
Distance179 km
Latest bus departure20:25

San Diego to Ontario Bus

Busbud helps you find a bus from San Diego to Ontario. Get the best fare and schedule, book a round trip ticket or find buses with WiFi and electrical outlets.

Bus service from San Diego to Ontario will be provided by the most trusted bus companies.

From cheap bus tickets to more luxurious buses travelling from San Diego to Ontario, we offer a wide range of bus services to best suit your needs depending on how much your budget is.

Frequently asked questions on the trip San Diego, CA, US - Ontario, CA

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

    The bus ticket price from San Diego to Ontario starts at US$27. The best way to find cheap bus tickets from San Diego to Ontario 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 San Diego to Ontario?

    The average travel time between San Diego and Ontario is around 5h 55m, although the fastest bus will take about 2h 55m. 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 San Diego and Ontario?

    The number of buses from San Diego to Ontario can differ depending on the day of the week. On average, there are 17 on this route. Some buses run direct routes, while others have layovers. Simplify your bus trip from San Diego to Ontario by comparing and selecting the bus that fits your travel style and budget on Busbud.

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

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

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

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

Find cheapest prices for buses

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

Best price found
28/10
US$42
29/10
US$37
Today
US$38
31/10
US$39
01/11
US$31
02/11
No data
03/11
US$32
04/11
US$29
busbud logoThe cheapest trip from San Diego, CA, US to Ontario, CA was searched and found on 04 Nov 2025 with a price of US$29

To 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 US$29 to US$71 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 US$29, which is on 2025-11-04.

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.

About Bus Travel

Bus Travel Tips

Make friends with the driver. They usually know a lot about your destination and may even recommend which side of the bus to sit on to get the best views on the road between San Diego and Ontario!

Much more than a mere vehicle taking you from San Diego to Ontario, riding the bus will expose you to some of the most stunning panoramas while enroute to your final bus stop.

Taking the bus creates the smallest carbon footprint compared to other modes of transport. Not to mention that buses will allow you to discover scenic gems from San Diego to Ontario that are otherwise impossible to come by with a plane.

Tune out to the fine sounds of your best music playlist on your bus trip from San Diego to Ontario while indulging in miles on end of beautiful scenic views.

Did you know?

It takes 27 hours to go by bus from Lima to Cusco, one of the craziest bus trips on the world. This route is used daily by locals and backpackers.

The word 'bus' is an abbreviation of 'omnibus" which means 'for all' in Latin as buses were meant to be transportation for everybody.

The Superbus, created by a Dutch engineer is the world's fastest bus with 250 km/h. Too bad it's only a prototype for now.

Will you be returning to San Diego, CA, US by bus?

Bus from Ontario, CA to San Diego, CA, US

Why choose Busbud?

The Best Way To Book Bus and Train Tickets

Busbud makes bus travel easy. We help travellers find a bus, plot routes, and book intercity bus tickets all over the world. With Busbud, wherever you go, you have a worldwide bus station within reach and available in your own language and currency. Busbud partners with safe and reliable bus companies throughout the world such as Greyhound, Eurolines, ALSA, OUIBUS (BlaBlaBus), National Express and many others so you can buy tickets without a worry.

People from around the world trust Busbud

‌

Popular Buses Connecting San Diego

Buses Leaving from San Diego

Buses Going to San Diego

Popular Buses Connecting Ontario

Buses Leaving from Ontario

Buses Going to Ontario