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

Next departures

Next departures from San Diego to Ontario on 7 October
Operated byVehicle typeDeparture timeDeparture locationTrip durationArrival timeArrival locationRecommendedPrice and booking link
Greyhound Lines, Inc. + FlixBus
Greyhound Bus Stop
Montclair (Ontario)Cheapest
Los Limousines
Cross Border Xpress CBX (USA)
Ontario Convention CenterFastest
FlixBus
San Diego (Old Town-FlixBus)
Montclair (Ontario)No tags
FlixBus + Greyhound Lines, Inc.
UCSD Health La Jolla Station
Montclair / Ontario / ClaremontNo tags
Greyhound Lines, Inc.
Greyhound Bus Stop
Montclair / Ontario / ClaremontNo tags

Last refresh of the prices: Today at 08:15 PDT.

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

Average ticket priceUS$41
Average bus trip duration5h 55m
Number of daily buses19
Earliest bus departure06:45
Distance111 miles
Latest bus departure19:35

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. What's the distance between San Diego and Ontario by coach?

    The distance between San Diego and Ontario by coach is approximately 98 miles (157 km).

  2. What is the best way to go from San Diego to Ontario without a car?

    The best way to go from San Diego to Ontario without a car is by coach. They are frequent and reliable, offering a convenient and eco-friendly journey. You can also consider rideshare services depending on your preferences.

Find cheapest prices for buses

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

Best price found
04/10
US$36
05/10
US$50
Today
US$44
07/10
US$40
08/10
US$20
09/10
US$23
10/10
US$36
11/10
US$33
busbud logoThe cheapest trip from San Diego, CA, US to Ontario, CA was searched and found on 8 Oct 2025 with a price of US$20

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$20 to US$64 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$20, which is on 2025-10-08.

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.

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