Bus tickets San Diego to Ontario, CA from £16

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Compare all timetables for the bus from San Diego to Ontario, CA

Here is a selection of the cheapest bus trips from the schedule from San Diego to Ontario, CA from various bus operators like FlixBus or Greyhound US for the next days.

today
£20
tomorrow
£29
Monday
£22
Tuesday
£22
Wednesday
£21
Thursday
£22
Friday
£21

Cheapest bus trips today

Mode of Transport BertCompanyCountOneCompanyName Duration Departure time From Departure Arrival time To Destination Logo Seat classes Price
FlixBus 6h 15m 07:35 San Diego Old Town Transit Center 13:50 Ontario, CA Montclair Place  Economy £20

Cheapest bus trips tomorrow

Mode of Transport BertCompanyCountOneCompanyName Duration Departure time From Departure Arrival time To Destination Logo Seat classes Price
Greyhound US 4h 15m 11:00 San Diego San Ysidro Transit Center 15:15 Ontario, CA Montclair Place  Economy £29
Greyhound US 6h 40m 04:55 San Diego San Ysidro Transit Center 11:35 Ontario, CA Montclair Place  Economy £31
FlixBus 6h 55m 06:55 San Diego San Ysidro Transit Center 13:50 Ontario, CA Montclair Place  Economy £31
FlixBus 5h 15m 08:40 San Diego San Ysidro Transit Center 13:55 Ontario, CA Montclair Place  Economy £31
FlixBus 6h 15m 12:40 San Diego San Ysidro Transit Center 18:55 Ontario, CA Montclair Place  Economy £31
  • Did you know that if you travel from San Diego to Ontario, CA via San Bernardino, CA, you can save more than £10? You can find the corresponding connections below.
    • FlixBus
      5h 55m
      0
      07:55
      San Diego
      La Jolla Village
      10:25
      San Bernardino, CA
      John's Burger Flixbus Stop
      0
      FlixBus
      Economy
      £15
      • Waiting Time 2h 55m
    • FlixBus
      0h 30m
      0
      13:20
      San Bernardino, CA
      Crescent Wb Lt
      13:50
      Ontario, CA
      Montclair Place
      0
      FlixBus
      Economy
      £4
    Travel time is 1h 40m longer, but you will save £10

Cheapest bus trips Monday

Mode of Transport BertCompanyCountOneCompanyName Duration Departure time From Departure Arrival time To Destination Logo Seat classes Price
Greyhound US 3h 30m 11:45 San Diego Old Town Transit Center 15:15 Ontario, CA Montclair Place  Economy £22
FlixBus 6h 15m 07:35 San Diego Old Town Transit Center 13:50 Ontario, CA Montclair Place  Economy £23
Greyhound US 5h 55m 05:40 San Diego Old Town Transit Center 11:35 Ontario, CA Montclair Place  Economy £26
FlixBus 5h 55m 07:55 San Diego La Jolla Village 13:50 Ontario, CA Montclair Place  Economy £26
FlixBus 5h 20m 13:35 San Diego La Jolla Village 18:55 Ontario, CA Montclair Place  Economy £26

Cheapest bus trips Tuesday

Mode of Transport BertCompanyCountOneCompanyName Duration Departure time From Departure Arrival time To Destination Logo Seat classes Price
Greyhound US 3h 30m 11:45 San Diego Old Town Transit Center 15:15 Ontario, CA Montclair Place  Economy £22
FlixBus 6h 15m 07:35 San Diego Old Town Transit Center 13:50 Ontario, CA Montclair Place  Economy £22
Greyhound US 5h 55m 05:40 San Diego Old Town Transit Center 11:35 Ontario, CA Montclair Place  Economy £25
Greyhound US 5h 40m 19:45 San Diego Old Town Transit Center 01:25 Ontario, CA Montclair Place  Economy £25
FlixBus 5h 55m 07:55 San Diego La Jolla Village 13:50 Ontario, CA Montclair Place  Economy £25

Cheapest bus trips Wednesday

Mode of Transport BertCompanyCountOneCompanyName Duration Departure time From Departure Arrival time To Destination Logo Seat classes Price
FlixBus 6h 15m 07:35 San Diego Old Town Transit Center 13:50 Ontario, CA Montclair Place  Economy £21
  • Did you know that if you travel from San Diego to Ontario, CA via San Bernardino, CA, you can save more than £6? You can find the corresponding connections below.
    • FlixBus
      6h 15m
      0
      07:35
      San Diego
      Old Town Transit Center
      10:25
      San Bernardino, CA
      Crescent Wb Lt
      0
      FlixBus
      Economy
      £12
      • Waiting Time 2h 55m
    • FlixBus
      0h 30m
      0
      13:20
      San Bernardino, CA
      Crescent Wb Lt
      13:50
      Ontario, CA
      Montclair Place
      0
      FlixBus
      Economy
      £4
    Travel time is the same as the direct connection, but you will save £6

Cheapest bus trips Thursday

Mode of Transport BertCompanyCountOneCompanyName Duration Departure time From Departure Arrival time To Destination Logo Seat classes Price
Greyhound US 3h 30m 11:45 San Diego Old Town Transit Center 15:15 Ontario, CA Montclair Place  Economy £22
Greyhound US 5h 55m 05:40 San Diego Old Town Transit Center 11:35 Ontario, CA Montclair Place  Economy £23
Greyhound US 5h 40m 19:45 San Diego Old Town Transit Center 01:25 Ontario, CA Montclair Place  Economy £23
FlixBus 5h 45m 13:10 San Diego Seaport Village 18:55 Ontario, CA Montclair Place  Economy £23
FlixBus 5h 20m 13:35 San Diego La Jolla Village 18:55 Ontario, CA Montclair Place  Economy £23

Cheapest bus trips Friday

Mode of Transport BertCompanyCountOneCompanyName Duration Departure time From Departure Arrival time To Destination Logo Seat classes Price
FlixBus 6h 15m 07:35 San Diego Old Town Transit Center 13:50 Ontario, CA Montclair Place  Economy £21
  • Did you know that if you travel from San Diego to Ontario, CA via San Bernardino, CA, you can save more than £6? You can find the corresponding connections below.
    • FlixBus
      6h 15m
      0
      07:35
      San Diego
      Old Town Transit Center
      10:25
      San Bernardino, CA
      Crescent Wb Lt
      0
      FlixBus
      Economy
      £12
      • Waiting Time 2h 55m
    • FlixBus
      0h 30m
      0
      13:20
      San Bernardino, CA
      Crescent Wb Lt
      13:50
      Ontario, CA
      Montclair Place
      0
      FlixBus
      Economy
      £4
    Travel time is the same as the direct connection, but you will save £6

Best Price Offer: The price for the cheapest coach from San Diego to Ontario, CA is £16 on 17/11/2026. Flexible travellers save on ticket prices.


Frequency of bus connections between San Diego and Ontario, CA

See here how frequent the connections between San Diego and Ontario, CA are, during different times and days of the week.
Monday is the busiest day, with more than 8 daily coaches from San Diego to Ontario, CA. Wednesday has instead the fewest connections, with only 1 daily coaches between San Diego and Ontario, CA.
The busiest time of the day is the Morning, with 15 coaches from San Diego to Ontario, CA, while Evening sees the fewest connections between San Diego and Ontario, CA, with 4 offers.

Facts about coaches from San Diego to Ontario, CA

Compare all providers like FlixBus and Greyhound US that travel 4 times every day by bus from San Diego to Ontario, CA in one click! Book your bus ticket from San Diego to Ontario, CA starting from £16!

Cheapest Bus £16
Fastest Bus 3h 30m
Earliest Coach 07:35
Latest Coach 07:35
Daily Bus Connections 4 Ø
Distance 156.2 km
Coach Companies FlixBus and Greyhound US

Cheapest coach connections from San Diego to Ontario, CA

Every day, 4 buses from 2 coach companies leave San Diego for Ontario, CA: in the table below, you will find the cheapest prices for a bus ticket for this route, starting from 31/10/2026 and for the following days.

Monday
Tuesday
Wednesday
Thursday
Friday
Saturday
Sunday
Monday 26/10
Tuesday 27/10
Wednesday 28/10
Thursday 29/10
Friday 30/10
Saturday 31/10
£20
Sunday 01/11
£29
Monday 02/11
£23
Tuesday 03/11
£19
Wednesday 04/11
£19
Thursday 05/11
£22
Friday 06/11
£21
Saturday 07/11
£19
Sunday 08/11
£24
Monday 09/11
£18
Tuesday 10/11
£20
Wednesday 11/11
£18
Thursday 12/11
£22
Friday 13/11
£22
Saturday 14/11
£20
Sunday 15/11
£28
Monday 16/11
£17
Tuesday 17/11
£16
Wednesday 18/11
£20
Thursday 19/11
£26
Friday 20/11
£30
Saturday 21/11
£29
Sunday 22/11

The cheapest time to travel from San Diego to Ontario, CA

See here on which day and which time of the day you can find the cheapest bus ticket from San Diego to Ontario, CA, for the next 30 days.
With a price starting from £16, Tuesday is the cheapest day for a coach from San Diego to Ontario, CA. Sunday instead is the most expensive day with prices starting from £24.
Night is the cheapest day time for bus tickets from San Diego to Ontario, CA, with £16. Evening is the most expensive time of the day with prices starting from £23.

How to save money travelling from San Diego to Ontario, CA

Travel can be expensive, but it doesn't need to be! Do you want to avoid paying a terrible price for your trip? Then follow these quick steps to save money:

Book the ticket from San Diego to Ontario, CA in advance! The earlier you book, the cheaper usually the price is. Also, you will be sure to have a place on the bus from San Diego to Ontario, CA, compared instead if you buy it at the last moment, or directly at the station.

If you can, avoid travelling at peak times. Instead of weekend, try travelling during the week. Travelling in the evening or at night it’s also cheaper, and later coaches from San Diego to Ontario, CA are also emptier.

All bus stations and stops in San Diego and Ontario, CA

The map below shows you where to find all the bus stations in San Diego and Ontario, CA.

Service and Comfort on the bus from San Diego to Ontario, CA

Want to know which seat classes are available on the coaches from San Diego to Ontario, CA? Or which bus companies serve the route San Diego to Ontario, CA? Below you will find answers to your questions.

FAQs about the San Diego to Ontario, CA bus

How much does a San Diego - Ontario, CA coach trip cost?

This depends on, among other things, the day and travel time. The cheapest ticket for the San Diego - Ontario, CA bus trip is available from £16 and takes 6h 15m. Compare offers and save money!

How much could I save by comparing buses from San Diego to Ontario, CA?

The connection San Diego to Ontario, CA is offered by 2 companies with ticket prices ranging from £16 to £35. Therefore, we suggest booking your ticket as soon as possible to ensure you will get the cheapest ticket price.

How many connections are available for the San Diego - Ontario, CA route on average every day?

Each day, the bus route from San Diego to Ontario, CA is offered by roughly 4 busses. By using our search, you can compare bus schedules and find your ideal trip.

How long does a bus to Ontario, CA from San Diego take?

The quickest coach from San Diego to Ontario, CA is provided by Greyhound US and takes 3h 30m. Coach tickets for this connection cost £22. However, keep in mind that the connection can take longer due to traffic.

What time is the first bus from San Diego to Ontario, CA?

The earliest bus to Ontario, CA departs from San Diego at 07:35. In this context, information about departure times may differ on weekends and holidays. Simply use our search to find the exact times for your planned travel date.

What time is the last coach from San Diego to Ontario, CA?

The latest bus to Ontario, CA departs from San Diego at 07:35. Please note that departure times may differ on weekends and holidays. Simply use our search to find the exact times for your planned travel date.

Which bus companies serve the San Diego - Ontario, CA route?

Passengers looking to travel from San Diego to Ontario, CA can travel with FlixBus and Greyhound US. Compare all available bus tickets with our search to book the trip that works best for you.

Is there a direct bus between San Diego and Ontario, CA?

You can check all the direct connections between San Diego and Ontario, CA by using our search and looking at the Changes section in our filters. These are some of the companies which offer a direct bus: FlixBus and Greyhound US.

What can I take with me on the bus to Ontario, CA from San Diego?

Depending on which provider you travel with, what you are allowed to bring with you can vary. Generally, you can take a suitcase and hand luggage with you on the bus for the San Diego Ontario, CA bus route free of charge. Simply use our search to find a coach that is best suited to your needs for your planned travel date.

What equipment is available for the San Diego Ontario, CA bus route?

The equipment on board differs depending on the provider. However, many long-distance buses have WiFi so you can tell your friends your exact location during the journey. To make travelling even more pleasant, air conditioning systems provide ventilation. It is best to use our search to get precise information about the equipment of the bus from San Diego to Ontario, CA on your planned travel date.

How does CheckMyBus find the best bus deals from San Diego to Ontario, CA?

CheckMyBus collaborates directly with companies around the world to provide you with the best options when searching for a trip. We retrieve their first-hand data to show you real-time prices, schedules, and seat availability for 4 daily trips between San Diego and Ontario, CA. With the most up-to-date information from verified sources, you can fairly compare all available options and choose the trip that suits you best.

How does CheckMyBus technology work for trips from San Diego to Ontario, CA?

Prices and availability for 4 trips between San Diego and Ontario, CA change constantly. To provide you with the most up-to-date information, we connect directly with bus operators, Online Travel Agencies (OTAs), and Global Distribution Systems (GDS) via real-time interfaces (APIs). The data collected from these sources undergoes strict quality checks, is processed within our infrastructure, and is then presented to you on our search results pages. Visit our About Us page to learn more.

Available seat classes which are offered on the bus route San Diego to Ontario, CA

Economy
Economy

The cheapest option available for your ticket, it usually comes with reclinable seats and AC.

More bus routes to San Diego and to Ontario, CA

Here’s an overview of the most popular bus routes to San Diego and to Ontario, CA. Simply click on the connection of your choice, and you will find all the details about your bus route!
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Bus Ciudad Juárez to San Diego Bus Ciudad Juárez to San Diego
Bus Los Angeles to Ontario, CA Bus Los Angeles to Ontario, CA
Bus from Bakersfield, CA to Ontario, CA Bus from Bakersfield, CA to Ontario, CA
Bus to Ontario, CA from El Monte, CA Bus to Ontario, CA from El Monte, CA
Coach to Ontario, CA from Fresno, CA Coach to Ontario, CA from Fresno, CA
Popular Airport Transfers to San Diego and to Ontario, CA
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