Bus and Coach from San Diego to Ontario, CA: Compare all prices

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, Greyhound US or Limousine Express for the next days.

today

£34

tomorrow

£21

Sunday

£25

Monday

Tuesday

£29

Wednesday

£30

Thursday

£23

Cheapest bus trips today
BertCompanyCountOneCompanyName	Duration	Departure time	From	Departure	Arrival time	To	Destination	Seat classes	Price
FlixBus	6h 40m	12:15	San Diego	Old Town Transit Center	18:55	Ontario, CA	Montclair Place	Economy	£34	A Bus from FlixBus goes from Old Town Transit Center, San Diego (USA) at 19/12/2025 12:15:00 to Montclair Place, Ontario, CA (USA) arriving at 19/12/2025 18:55:00. 50 Economy ticket for £34 per person are available. Travel duration is 6h 40m
FlixBus	5h 10m	13:45	San Diego	Seaport Village	18:55	Ontario, CA	Montclair Place	Economy	£34	A Bus from FlixBus goes from Seaport Village, San Diego (USA) at 19/12/2025 13:45:00 to Montclair Place, Ontario, CA (USA) arriving at 19/12/2025 18:55:00. 50 Economy ticket for £34 per person are available. Travel duration is 5h 10m
FlixBus	4h 45m	14:10	San Diego	La Jolla Village	18:55	Ontario, CA	Montclair Place	Economy	£34	A Bus from FlixBus goes from La Jolla Village, San Diego (USA) at 19/12/2025 14:10:00 to Montclair Place, Ontario, CA (USA) arriving at 19/12/2025 18:55:00. 50 Economy ticket for £34 per person are available. Travel duration is 4h 45m
Greyhound US	5h 55m	19:35	San Diego	Old Town Transit Center	01:30	Ontario, CA	Montclair Place	Economy	£41	A Bus from Greyhound US goes from Old Town Transit Center, San Diego (USA) at 19/12/2025 19:35:00 to Montclair Place, Ontario, CA (USA) arriving at 20/12/2025 01:30:00. 50 Economy ticket for £41 per person are available. Travel duration is 5h 55m

Cheapest bus trips tomorrow
BertCompanyCountOneCompanyName	Duration	Departure time	From	Departure	Arrival time	To	Destination	Seat classes	Price
Greyhound US	5h 50m	19:35	San Diego	Old Town Transit Center	01:25	Ontario, CA	Montclair Place	Economy	£21	A Bus from Greyhound US goes from Old Town Transit Center, San Diego (USA) at 20/12/2025 19:35:00 to Montclair Place, Ontario, CA (USA) arriving at 21/12/2025 01:25:00. 50 Economy ticket for £21 per person are available. Travel duration is 5h 50m
Greyhound US	5h 55m	19:35	San Diego	Old Town Transit Center	01:30	Ontario, CA	Montclair Place	Economy	£21	A Bus from Greyhound US goes from Old Town Transit Center, San Diego (USA) at 20/12/2025 19:35:00 to Montclair Place, Ontario, CA (USA) arriving at 21/12/2025 01:30:00. 50 Economy ticket for £21 per person are available. Travel duration is 5h 55m
FlixBus	5h 40m	07:35	San Diego	Old Town Transit Center	13:15	Ontario, CA	Montclair Place	Economy	£21	A Bus from FlixBus goes from Old Town Transit Center, San Diego (USA) at 20/12/2025 07:35:00 to Montclair Place, Ontario, CA (USA) arriving at 20/12/2025 13:15:00. 50 Economy ticket for £21 per person are available. Travel duration is 5h 40m
FlixBus	5h 35m	08:20	San Diego	Old Town Transit Center	13:55	Ontario, CA	Montclair Place	Economy	£21	A Bus from FlixBus goes from Old Town Transit Center, San Diego (USA) at 20/12/2025 08:20:00 to Montclair Place, Ontario, CA (USA) arriving at 20/12/2025 13:55:00. 50 Economy ticket for £21 per person are available. Travel duration is 5h 35m
FlixBus	6h 40m	12:15	San Diego	Old Town Transit Center	18:55	Ontario, CA	Montclair Place	Economy	£21	A Bus from FlixBus goes from Old Town Transit Center, San Diego (USA) at 20/12/2025 12:15:00 to Montclair Place, Ontario, CA (USA) arriving at 20/12/2025 18:55:00. 50 Economy ticket for £21 per person are available. Travel duration is 6h 40m

Cheapest bus trips Sunday
BertCompanyCountOneCompanyName	Duration	Departure time	From	Departure	Arrival time	To	Destination	Seat classes	Price
Greyhound US	7h 10m	06:45	San Diego	Old Town Transit Center	13:55	Ontario, CA	Montclair Place	Economy	£25	A Bus from Greyhound US goes from Old Town Transit Center, San Diego (USA) at 21/12/2025 06:45:00 to Montclair Place, Ontario, CA (USA) arriving at 21/12/2025 13:55:00. 50 Economy ticket for £25 per person are available. Travel duration is 7h 10m
Greyhound US	5h 50m	19:35	San Diego	Old Town Transit Center	01:25	Ontario, CA	Montclair Place	Economy	£25	A Bus from Greyhound US goes from Old Town Transit Center, San Diego (USA) at 21/12/2025 19:35:00 to Montclair Place, Ontario, CA (USA) arriving at 22/12/2025 01:25:00. 50 Economy ticket for £25 per person are available. Travel duration is 5h 50m
FlixBus	5h 55m	07:35	San Diego	Old Town Transit Center	13:30	Ontario, CA	Montclair Place	Economy	£25	A Bus from FlixBus goes from Old Town Transit Center, San Diego (USA) at 21/12/2025 07:35:00 to Montclair Place, Ontario, CA (USA) arriving at 21/12/2025 13:30:00. 50 Economy ticket for £25 per person are available. Travel duration is 5h 55m
FlixBus	6h 40m	12:15	San Diego	Old Town Transit Center	18:55	Ontario, CA	Montclair Place	Economy	£25	A Bus from FlixBus goes from Old Town Transit Center, San Diego (USA) at 21/12/2025 12:15:00 to Montclair Place, Ontario, CA (USA) arriving at 21/12/2025 18:55:00. 50 Economy ticket for £25 per person are available. Travel duration is 6h 40m
FlixBus	5h 10m	13:45	San Diego	Seaport Village	18:55	Ontario, CA	Montclair Place	Economy	£25	A Bus from FlixBus goes from Seaport Village, San Diego (USA) at 21/12/2025 13:45:00 to Montclair Place, Ontario, CA (USA) arriving at 21/12/2025 18:55:00. 50 Economy ticket for £25 per person are available. Travel duration is 5h 10m

Cheapest bus trips Tuesday
BertCompanyCountOneCompanyName	Duration	Departure time	From	Departure	Arrival time	To	Destination	Seat classes	Price
Greyhound US	7h 55m	06:00	San Diego	San Ysidro Transit Center	13:55	Ontario, CA	Montclair Place	Economy	£29	A Bus from Greyhound US goes from San Ysidro Transit Center, San Diego (USA) at 23/12/2025 06:00:00 to Montclair Place, Ontario, CA (USA) arriving at 23/12/2025 13:55:00. 50 Economy ticket for £29 per person are available. Travel duration is 7h 55m
FlixBus	5h 40m	13:15	San Diego	San Ysidro Transit Center	18:55	Ontario, CA	Montclair Place	Economy	£29	A Bus from FlixBus goes from San Ysidro Transit Center, San Diego (USA) at 23/12/2025 13:15:00 to Montclair Place, Ontario, CA (USA) arriving at 23/12/2025 18:55:00. 50 Economy ticket for £29 per person are available. Travel duration is 5h 40m
FlixBus	6h 35m	06:55	San Diego	San Ysidro Transit Center	13:30	Ontario, CA	Montclair Place	Economy	£30	A Bus from FlixBus goes from San Ysidro Transit Center, San Diego (USA) at 23/12/2025 06:55:00 to Montclair Place, Ontario, CA (USA) arriving at 23/12/2025 13:30:00. 50 Economy ticket for £30 per person are available. Travel duration is 6h 35m
Greyhound US	7h 10m	06:45	San Diego	Old Town Transit Center	13:55	Ontario, CA	Montclair Place	Economy	£32	A Bus from Greyhound US goes from Old Town Transit Center, San Diego (USA) at 23/12/2025 06:45:00 to Montclair Place, Ontario, CA (USA) arriving at 23/12/2025 13:55:00. 50 Economy ticket for £32 per person are available. Travel duration is 7h 10m
Limousine Express	6h 0m	11:00	San Diego	San Ysidro Transit Center	17:00	Ontario, CA	Convention Center	Basic	£32	A Bus from Limousine Express goes from San Ysidro Transit Center, San Diego (USA) at 23/12/2025 11:00:00 to Convention Center, Ontario, CA (USA) arriving at 23/12/2025 17:00:00. 50 Basic ticket for £32 per person are available. Travel duration is 6h 0m

Cheapest bus trips Wednesday
BertCompanyCountOneCompanyName	Duration	Departure time	From	Departure	Arrival time	To	Destination	Seat classes	Price
Greyhound US	7h 55m	06:00	San Diego	San Ysidro Transit Center	13:55	Ontario, CA	Montclair Place	Economy	£30	A Bus from Greyhound US goes from San Ysidro Transit Center, San Diego (USA) at 24/12/2025 06:00:00 to Montclair Place, Ontario, CA (USA) arriving at 24/12/2025 13:55:00. 50 Economy ticket for £30 per person are available. Travel duration is 7h 55m
Greyhound US	6h 30m	19:00	San Diego	San Ysidro Transit Center	01:30	Ontario, CA	Montclair Place	Economy	£30	A Bus from Greyhound US goes from San Ysidro Transit Center, San Diego (USA) at 24/12/2025 19:00:00 to Montclair Place, Ontario, CA (USA) arriving at 25/12/2025 01:30:00. 50 Economy ticket for £30 per person are available. Travel duration is 6h 30m
FlixBus	6h 35m	06:55	San Diego	San Ysidro Transit Center	13:30	Ontario, CA	Montclair Place	Economy	£30	A Bus from FlixBus goes from San Ysidro Transit Center, San Diego (USA) at 24/12/2025 06:55:00 to Montclair Place, Ontario, CA (USA) arriving at 24/12/2025 13:30:00. 50 Economy ticket for £30 per person are available. Travel duration is 6h 35m
FlixBus	5h 40m	13:15	San Diego	San Ysidro Transit Center	18:55	Ontario, CA	Montclair Place	Economy	£30	A Bus from FlixBus goes from San Ysidro Transit Center, San Diego (USA) at 24/12/2025 13:15:00 to Montclair Place, Ontario, CA (USA) arriving at 24/12/2025 18:55:00. 50 Economy ticket for £30 per person are available. Travel duration is 5h 40m
Limousine Express	6h 0m	11:00	San Diego	San Ysidro Transit Center	17:00	Ontario, CA	Convention Center	Basic	£32	A Bus from Limousine Express goes from San Ysidro Transit Center, San Diego (USA) at 24/12/2025 11:00:00 to Convention Center, Ontario, CA (USA) arriving at 24/12/2025 17:00:00. 50 Basic ticket for £32 per person are available. Travel duration is 6h 0m

Cheapest bus trips Thursday
BertCompanyCountOneCompanyName	Duration	Departure time	From	Departure	Arrival time	To	Destination	Seat classes	Price
FlixBus	5h 55m	07:35	San Diego	Old Town Transit Center	13:30	Ontario, CA	Montclair Place	Economy	£23	A Bus from FlixBus goes from Old Town Transit Center, San Diego (USA) at 25/12/2025 07:35:00 to Montclair Place, Ontario, CA (USA) arriving at 25/12/2025 13:30:00. 50 Economy ticket for £23 per person are available. Travel duration is 5h 55m
Greyhound US	7h 10m	06:45	San Diego	Old Town Transit Center	13:55	Ontario, CA	Montclair Place	Economy	£24	A Bus from Greyhound US goes from Old Town Transit Center, San Diego (USA) at 25/12/2025 06:45:00 to Montclair Place, Ontario, CA (USA) arriving at 25/12/2025 13:55:00. 50 Economy ticket for £24 per person are available. Travel duration is 7h 10m
FlixBus	5h 35m	08:20	San Diego	Old Town Transit Center	13:55	Ontario, CA	Montclair Place	Economy	£24	A Bus from FlixBus goes from Old Town Transit Center, San Diego (USA) at 25/12/2025 08:20:00 to Montclair Place, Ontario, CA (USA) arriving at 25/12/2025 13:55:00. 50 Economy ticket for £24 per person are available. Travel duration is 5h 35m
FlixBus	5h 10m	13:45	San Diego	Seaport Village	18:55	Ontario, CA	Montclair Place	Economy	£24	A Bus from FlixBus goes from Seaport Village, San Diego (USA) at 25/12/2025 13:45:00 to Montclair Place, Ontario, CA (USA) arriving at 25/12/2025 18:55:00. 50 Economy ticket for £24 per person are available. Travel duration is 5h 10m
Greyhound US	5h 55m	19:35	San Diego	Old Town Transit Center	01:30	Ontario, CA	Montclair Place	Economy	£28	A Bus from Greyhound US goes from Old Town Transit Center, San Diego (USA) at 25/12/2025 19:35:00 to Montclair Place, Ontario, CA (USA) arriving at 26/12/2025 01:30:00. 50 Economy ticket for £28 per person are available. Travel duration is 5h 55m

Best Price Offer: The price for the cheapest coach from San Diego to Ontario, CA is £21 on 20/12/2025. 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.

Saturday is the busiest day, with more than 19 daily coaches from San Diego to Ontario, CA. Thursday has instead the fewest connections, with only 5 daily coaches between San Diego and Ontario, CA.

The busiest time of the day is the Afternoon, with 31 coaches from San Diego to Ontario, CA, while Evening sees the fewest connections between San Diego and Ontario, CA, with 15 offers.

Facts about coaches from San Diego to Ontario, CA

Compare all providers like FlixBus, Greyhound US and Limousine Express that travel 12 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 £21!

Cheapest Bus	£21
Fastest Bus	3h 50m
Earliest Coach	12:15
Latest Coach	19:35
Daily Bus Connections	12 Ø
Distance	156.2 km
Coach Companies	FlixBus, Greyhound US and Limousine Express

Cheapest coach connections from San Diego to Ontario, CA

Every day, 12 buses from 3 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 19/12/2025 and for the following days.

Monday

Tuesday

Wednesday

Thursday

Friday

Saturday

Sunday

Monday 15/12

Tuesday 16/12

Wednesday 17/12

Thursday 18/12

Friday 19/12

£34

Saturday 20/12

£21

Sunday 21/12

£32

Monday 22/12

Tuesday 23/12

£31

Wednesday 24/12

£32

Thursday 25/12

£23

Friday 26/12

£29

Saturday 27/12

Sunday 28/12

£27

Monday 29/12

Tuesday 30/12

£25

Wednesday 31/12

Thursday 01/01

Friday 02/01

Saturday 03/01

Sunday 04/01

Monday 05/01

£24

Tuesday 06/01

Wednesday 07/01

Thursday 08/01

Friday 09/01

Saturday 10/01

Sunday 11/01

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 £21, Saturday is the cheapest day for a coach from San Diego to Ontario, CA. Wednesday instead is the most expensive day with prices starting from £30.

Afternoon is the cheapest day time for bus tickets from San Diego to Ontario, CA, with £21. Morning is the most expensive time of the day with prices starting from £21.

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.

Old Town Transit Center

Congress Street 2727

San Ysidro Transit Center

E San Ysidro Blvd 723

Santa Fe Depot

Kettner Blvd 1050

Seaport Village

W Harbor Dr 789

La Jolla Village

Hyatt Regency

Convention Center

E Holt Blvd 2200

Montclair Place

Moreno Street Montclair

Carl's Jr & Teriyaki House

E 4th St 1625

Mills Drive Eb Fs

Tufesa

E Francis St 642

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 £21 and takes 5h 55m. 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 3 companies with ticket prices ranging from £21 to £44. 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 12 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 Limousine Express and takes 3h 50m. Coach tickets for this connection cost £32. 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 12:15. 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 19:35. 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, Greyhound US and Limousine Express. 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, Greyhound US and Limousine Express.

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 12 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 12 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

Basic

Name referring to the typical seat you will find with companies that don’t distinguish between different classes.

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!