Bus San Diego to Ontario, CA: Compare prices and save money

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, Executive Lines or Greyhound US for the next days.

today

$33

tomorrow

$27

Tuesday

$29

Wednesday

$26

Thursday

$25

Friday

$25

Saturday

$29

Cheapest bus trips today
Mode of Transport	BertCompanyCountOneCompanyName	Duration	Departure time	From	Departure	Arrival time	To	Destination	Logo	Seat classes	Price
	Greyhound US	8h 10m	5:40 AM	San Diego	Old Town Transit Center	1:50 PM	Ontario, CA	Montclair Place		Economy	$33	A Bus from Greyhound US goes from Old Town Transit Center, San Diego (USA) at 7/26/2026 5:40:00 AM to Montclair Place, Ontario, CA (USA) arriving at 7/26/2026 1:50:00 PM. 50 Economy ticket for $33 per person are available. Travel duration is 8h 10m
	FlixBus	6h 15m	7:35 AM	San Diego	Old Town Transit Center	1:50 PM	Ontario, CA	Montclair Place		Economy	$34	A Bus from FlixBus goes from Old Town Transit Center, San Diego (USA) at 7/26/2026 7:35:00 AM to Montclair Place, Ontario, CA (USA) arriving at 7/26/2026 1:50:00 PM. 50 Economy ticket for $34 per person are available. Travel duration is 6h 15m

Cheapest bus trips tomorrow
BertCompanyCountOneCompanyName	Duration	Departure time	From	Departure	Arrival time	To	Destination	Seat classes	Price
FlixBus	6h 15m	7:35 AM	San Diego	Old Town Transit Center	1:50 PM	Ontario, CA	Montclair Place	Economy	$27	A Bus from FlixBus goes from Old Town Transit Center, San Diego (USA) at 7/27/2026 7:35:00 AM to Montclair Place, Ontario, CA (USA) arriving at 7/27/2026 1:50:00 PM. 50 Economy ticket for $27 per person are available. Travel duration is 6h 15m
Greyhound US	8h 10m	5:40 AM	San Diego	Old Town Transit Center	1:50 PM	Ontario, CA	Montclair Place	Economy	$28	A Bus from Greyhound US goes from Old Town Transit Center, San Diego (USA) at 7/27/2026 5:40:00 AM to Montclair Place, Ontario, CA (USA) arriving at 7/27/2026 1:50:00 PM. 50 Economy ticket for $28 per person are available. Travel duration is 8h 10m
Executive Lines	2h 55m	8:45 AM	San Diego	San Ysidro Transit Center	11:40 AM	Ontario, CA	S Euclid Ave	Economy	$42	A Bus from Executive Lines goes from San Ysidro Transit Center, San Diego (USA) at 7/27/2026 8:45:00 AM to S Euclid Ave, Ontario, CA (USA) arriving at 7/27/2026 11:40:00 AM. 50 Economy ticket for $42 per person are available. Travel duration is 2h 55m
Executive Lines	2h 55m	10:00 AM	San Diego	San Ysidro Transit Center	12:55 PM	Ontario, CA	S Euclid Ave	Economy	$42	A Bus from Executive Lines goes from San Ysidro Transit Center, San Diego (USA) at 7/27/2026 10:00:00 AM to S Euclid Ave, Ontario, CA (USA) arriving at 7/27/2026 12:55:00 PM. 50 Economy ticket for $42 per person are available. Travel duration is 2h 55m
Greyhound US	7h 10m	4:55 AM	San Diego	San Ysidro Transit Center	12:05 PM	Ontario, CA	Montclair Place	Economy	$52	A Bus from Greyhound US goes from San Ysidro Transit Center, San Diego (USA) at 7/27/2026 4:55:00 AM to Montclair Place, Ontario, CA (USA) arriving at 7/27/2026 12:05:00 PM. 50 Economy ticket for $52 per person are available. Travel duration is 7h 10m

Cheapest bus trips Tuesday
BertCompanyCountOneCompanyName	Duration	Departure time	From	Departure	Arrival time	To	Destination	Seat classes	Price
Greyhound US	8h 10m	5:40 AM	San Diego	Old Town Transit Center	1:50 PM	Ontario, CA	Montclair Place	Economy	$29	A Bus from Greyhound US goes from Old Town Transit Center, San Diego (USA) at 7/28/2026 5:40:00 AM to Montclair Place, Ontario, CA (USA) arriving at 7/28/2026 1:50:00 PM. 50 Economy ticket for $29 per person are available. Travel duration is 8h 10m
FlixBus	6h 15m	7:35 AM	San Diego	Old Town Transit Center	1:50 PM	Ontario, CA	Montclair Place	Economy	$29	A Bus from FlixBus goes from Old Town Transit Center, San Diego (USA) at 7/28/2026 7:35:00 AM to Montclair Place, Ontario, CA (USA) arriving at 7/28/2026 1:50:00 PM. 50 Economy ticket for $29 per person are available. Travel duration is 6h 15m
Greyhound US	6h 25m	5:40 AM	San Diego	Old Town Transit Center	12:05 PM	Ontario, CA	Montclair Place	Economy	$33	A Bus from Greyhound US goes from Old Town Transit Center, San Diego (USA) at 7/28/2026 5:40:00 AM to Montclair Place, Ontario, CA (USA) arriving at 7/28/2026 12:05:00 PM. 50 Economy ticket for $33 per person are available. Travel duration is 6h 25m
Greyhound US	5h 35m	7:55 PM	San Diego	Old Town Transit Center	1:30 AM	Ontario, CA	Montclair Place	Economy	$33	A Bus from Greyhound US goes from Old Town Transit Center, San Diego (USA) at 7/28/2026 7:55:00 PM to Montclair Place, Ontario, CA (USA) arriving at 7/29/2026 1:30:00 AM. 50 Economy ticket for $33 per person are available. Travel duration is 5h 35m
FlixBus	9h 30m	9:25 AM	San Diego	Old Town Transit Center	6:55 PM	Ontario, CA	Montclair Place	Economy	$33	A Bus from FlixBus goes from Old Town Transit Center, San Diego (USA) at 7/28/2026 9:25:00 AM to Montclair Place, Ontario, CA (USA) arriving at 7/28/2026 6:55:00 PM. 50 Economy ticket for $33 per person are available. Travel duration is 9h 30m

Cheapest bus trips Wednesday
BertCompanyCountOneCompanyName	Duration	Departure time	From	Departure	Arrival time	To	Destination	Seat classes	Price
FlixBus	6h 15m	7:35 AM	San Diego	Old Town Transit Center	1:50 PM	Ontario, CA	Montclair Place	Economy	$26	A Bus from FlixBus goes from Old Town Transit Center, San Diego (USA) at 7/29/2026 7:35:00 AM to Montclair Place, Ontario, CA (USA) arriving at 7/29/2026 1:50:00 PM. 50 Economy ticket for $26 per person are available. Travel duration is 6h 15m
Greyhound US	8h 10m	5:40 AM	San Diego	Old Town Transit Center	1:50 PM	Ontario, CA	Montclair Place	Economy	$27	A Bus from Greyhound US goes from Old Town Transit Center, San Diego (USA) at 7/29/2026 5:40:00 AM to Montclair Place, Ontario, CA (USA) arriving at 7/29/2026 1:50:00 PM. 50 Economy ticket for $27 per person are available. Travel duration is 8h 10m
FlixBus	5h 45m	1:10 PM	San Diego	Seaport Village	6:55 PM	Ontario, CA	Montclair Place	Economy	$30	A Bus from FlixBus goes from Seaport Village, San Diego (USA) at 7/29/2026 1:10:00 PM to Montclair Place, Ontario, CA (USA) arriving at 7/29/2026 6:55:00 PM. 50 Economy ticket for $30 per person are available. Travel duration is 5h 45m
Executive Lines	2h 55m	8:45 AM	San Diego	San Ysidro Transit Center	11:40 AM	Ontario, CA	S Euclid Ave	Economy	$42	A Bus from Executive Lines goes from San Ysidro Transit Center, San Diego (USA) at 7/29/2026 8:45:00 AM to S Euclid Ave, Ontario, CA (USA) arriving at 7/29/2026 11:40:00 AM. 50 Economy ticket for $42 per person are available. Travel duration is 2h 55m
Executive Lines	2h 55m	10:00 AM	San Diego	San Ysidro Transit Center	12:55 PM	Ontario, CA	S Euclid Ave	Economy	$42	A Bus from Executive Lines goes from San Ysidro Transit Center, San Diego (USA) at 7/29/2026 10:00:00 AM to S Euclid Ave, Ontario, CA (USA) arriving at 7/29/2026 12:55:00 PM. 50 Economy ticket for $42 per person are available. Travel duration is 2h 55m

Cheapest bus trips Thursday
Mode of Transport	BertCompanyCountOneCompanyName	Duration	Departure time	From	Departure	Arrival time	To	Destination	Logo	Seat classes	Price
	Greyhound US	6h 15m	5:40 AM	San Diego	Old Town Transit Center	11:55 AM	Ontario, CA	Montclair Place		Economy	$25	A Bus from Greyhound US goes from Old Town Transit Center, San Diego (USA) at 7/30/2026 5:40:00 AM to Montclair Place, Ontario, CA (USA) arriving at 7/30/2026 11:55:00 AM. 50 Economy ticket for $25 per person are available. Travel duration is 6h 15m
	FlixBus	6h 0m	8:30 AM	San Diego	Old Town Transit Center	2:30 PM	Ontario, CA	Montclair Place		Economy	$25	A Bus from FlixBus goes from Old Town Transit Center, San Diego (USA) at 7/30/2026 8:30:00 AM to Montclair Place, Ontario, CA (USA) arriving at 7/30/2026 2:30:00 PM. 50 Economy ticket for $25 per person are available. Travel duration is 6h 0m

Cheapest bus trips Friday
BertCompanyCountOneCompanyName	Duration	Departure time	From	Departure	Arrival time	To	Destination	Seat classes	Price
Greyhound US	8h 10m	5:40 AM	San Diego	Old Town Transit Center	1:50 PM	Ontario, CA	Montclair Place	Economy	$25	A Bus from Greyhound US goes from Old Town Transit Center, San Diego (USA) at 7/31/2026 5:40:00 AM to Montclair Place, Ontario, CA (USA) arriving at 7/31/2026 1:50:00 PM. 50 Economy ticket for $25 per person are available. Travel duration is 8h 10m
FlixBus	6h 15m	7:35 AM	San Diego	Old Town Transit Center	1:50 PM	Ontario, CA	Montclair Place	Economy	$25	A Bus from FlixBus goes from Old Town Transit Center, San Diego (USA) at 7/31/2026 7:35:00 AM to Montclair Place, Ontario, CA (USA) arriving at 7/31/2026 1:50:00 PM. 50 Economy ticket for $25 per person are available. Travel duration is 6h 15m
Greyhound US	7h 10m	4:55 AM	San Diego	San Ysidro Transit Center	12:05 PM	Ontario, CA	Montclair Place	Economy	$33	A Bus from Greyhound US goes from San Ysidro Transit Center, San Diego (USA) at 7/31/2026 4:55:00 AM to Montclair Place, Ontario, CA (USA) arriving at 7/31/2026 12:05:00 PM. 50 Economy ticket for $33 per person are available. Travel duration is 7h 10m
FlixBus	6h 55m	6:55 AM	San Diego	San Ysidro Transit Center	1:50 PM	Ontario, CA	Montclair Place	Economy	$33	A Bus from FlixBus goes from San Ysidro Transit Center, San Diego (USA) at 7/31/2026 6:55:00 AM to Montclair Place, Ontario, CA (USA) arriving at 7/31/2026 1:50:00 PM. 50 Economy ticket for $33 per person are available. Travel duration is 6h 55m
Executive Lines	2h 55m	8:45 AM	San Diego	San Ysidro Transit Center	11:40 AM	Ontario, CA	S Euclid Ave	Economy	$42	A Bus from Executive Lines goes from San Ysidro Transit Center, San Diego (USA) at 7/31/2026 8:45:00 AM to S Euclid Ave, Ontario, CA (USA) arriving at 7/31/2026 11:40:00 AM. 50 Economy ticket for $42 per person are available. Travel duration is 2h 55m

Cheapest bus trips Saturday
BertCompanyCountOneCompanyName	Duration	Departure time	From	Departure	Arrival time	To	Destination	Seat classes	Price
Greyhound US	8h 10m	5:40 AM	San Diego	Old Town Transit Center	1:50 PM	Ontario, CA	Montclair Place	Economy	$29	A Bus from Greyhound US goes from Old Town Transit Center, San Diego (USA) at 8/1/2026 5:40:00 AM to Montclair Place, Ontario, CA (USA) arriving at 8/1/2026 1:50:00 PM. 50 Economy ticket for $29 per person are available. Travel duration is 8h 10m
FlixBus	6h 15m	7:35 AM	San Diego	Old Town Transit Center	1:50 PM	Ontario, CA	Montclair Place	Economy	$29	A Bus from FlixBus goes from Old Town Transit Center, San Diego (USA) at 8/1/2026 7:35:00 AM to Montclair Place, Ontario, CA (USA) arriving at 8/1/2026 1:50:00 PM. 50 Economy ticket for $29 per person are available. Travel duration is 6h 15m
Greyhound US	6h 25m	5:40 AM	San Diego	Old Town Transit Center	12:05 PM	Ontario, CA	Montclair Place	Economy	$33	A Bus from Greyhound US goes from Old Town Transit Center, San Diego (USA) at 8/1/2026 5:40:00 AM to Montclair Place, Ontario, CA (USA) arriving at 8/1/2026 12:05:00 PM. 50 Economy ticket for $33 per person are available. Travel duration is 6h 25m
Greyhound US	5h 35m	7:55 PM	San Diego	Old Town Transit Center	1:30 AM	Ontario, CA	Montclair Place	Economy	$33	A Bus from Greyhound US goes from Old Town Transit Center, San Diego (USA) at 8/1/2026 7:55:00 PM to Montclair Place, Ontario, CA (USA) arriving at 8/2/2026 1:30:00 AM. 50 Economy ticket for $33 per person are available. Travel duration is 5h 35m
FlixBus	9h 30m	9:25 AM	San Diego	Old Town Transit Center	6:55 PM	Ontario, CA	Montclair Place	Economy	$33	A Bus from FlixBus goes from Old Town Transit Center, San Diego (USA) at 8/1/2026 9:25:00 AM to Montclair Place, Ontario, CA (USA) arriving at 8/1/2026 6:55:00 PM. 50 Economy ticket for $33 per person are available. Travel duration is 9h 30m

Best Price Offer: The price for the cheapest bus from San Diego to Ontario, CA is $23 on 7/30/2026. Flexible travelers 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 14 daily buses from San Diego to Ontario, CA. Sunday has instead the fewest connections, with only 2 daily coaches between San Diego and Ontario, CA.

The busiest time of the day is the Morning, with 22 buses from San Diego to Ontario, CA, while Evening sees the fewest connections between San Diego and Ontario, CA, with 11 offers.

Facts about the bus from San Diego to Ontario, CA

Compare all providers like FlixBus, Executive Lines and Greyhound US that travel 9 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 $23!

Cheapest Bus	$23
Fastest Bus	2h 54m
Earliest Bus	5:40 AM
Latest Bus	7:55 PM
Daily Bus Routes	9 Ø
Distance	97.1 miles
Bus Companies	FlixBus, Executive Lines and Greyhound US

Cheapest bus connections from San Diego to Ontario, CA

Every day, 9 buses from 3 bus 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 07/26/2026 and for the following days.

Sunday

Monday

Tuesday

Wednesday

Thursday

Friday

Saturday

Sunday 07/26

$33

Monday 07/27

$52

Tuesday 07/28

$29

Wednesday 07/29

$43

Thursday 07/30

$23

Friday 07/31

$33

Saturday 08/01

$29

Sunday 08/02

$34

Monday 08/03

$27

Tuesday 08/04

$28

Wednesday 08/05

$29

Thursday 08/06

$26

Friday 08/07

$42

Saturday 08/08

$25

Sunday 08/09

$42

Monday 08/10

$29

Tuesday 08/11

$30

Wednesday 08/12

$26

Thursday 08/13

$29

Friday 08/14

$28

Saturday 08/15

$28

Sunday 08/16

$39

Monday 08/17

$31

Tuesday 08/18

$35

Wednesday 08/19

$26

Thursday 08/20

$27

Friday 08/21

$42

Saturday 08/22

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 $23, Thursday is the cheapest day for a bus from San Diego to Ontario, CA. Sunday instead is the most expensive day with prices starting from $33.

Night is the cheapest day time for bus tickets from San Diego to Ontario, CA, with $23. Evening is the most expensive time of the day with prices starting from $33.

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 buses from San Diego to Ontario, CA are also emptier.

Beloved bus companies from San Diego to Ontario, CA

These are the most booked bus companies between San Diego to Ontario, CA from our users.

FlixBus from San Diego to Ontario, CA

Here you will find the key facts about the FlixBus bus route San Diego to Ontario, CA:

Cheapest Price	$25
Fastest Bus	5h 20m
Earliest Bus	7:35 AM
Last Bus	1:35 PM
Daily Connections	3 Ø
Found on	7/26/2026

Executive Lines from San Diego to Ontario, CA

Here you will find the key facts about the Executive Lines bus route San Diego to Ontario, CA:

Cheapest Price	$42
Fastest Bus	2h 54m
Earliest Bus	8:45 AM
Last Bus	8:00 PM
Daily Connections	7 Ø
Found on	7/1/2026

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

In the map below, you can see where to find all bus stations in San Diego and Ontario, CA.

Old Town Transit Center

Congress Street 2727

San Ysidro Transit Center

E San Ysidro Blvd 723

Seaport Village

W Harbor Dr 789

Santa Fe Depot

Kettner Blvd 1050

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

S Euclid Ave

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

Want to know which seat classes are available on the buses 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 bus trip cost?

This depends on, among other things, the day and time of travel. The cheapest trip is available from $23 and takes 8h 10m to reach Ontario, CA. Compare offers to save money!

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

This route is offered by 3 companies with a range of ticket prices between $23 and $53. Thus, we recommend booking your ticket as early as possible to make sure you get the cheapest bus ticket to Ontario, CA.

On average, how many connections are available from San Diego to Ontario, CA each day?

Every day, the San Diego to Ontario, CA bus route is served by approximately 9 connections. With our search, you can compare bus times to find the perfect trip.

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

The fastest bus from San Diego to Ontario, CA is offered by Executive Lines and takes 2h 54m. Bus tickets for this connection cost $42. In this context, bear in mind that the journey can take longer due to traffic.

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

The earliest bus arriving in Ontario, CA from San Diego starts at 5:40 AM. However, information regarding departure times may differ on weekends and holidays. Simply use our search to find exact times for your planned travel date.

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

The latest bus trip departing from San Diego for Ontario, CA starts at 7:55 PM. Please note that departure times may differ on weekends and holidays. So just use our search to find the exact times for your planned travel date.

Which bus companies operate the San Diego Ontario, CA route?

When traveling by bus from San Diego to Ontario, CA, passengers can travel with FlixBus, Executive Lines and Greyhound US. With our search, you can compare all available bus tickets to book the one that works 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, Executive Lines and Greyhound US.

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

Depending on which provider you travel with, what you're allowed to bring with you can vary. Generally, you can take a suitcase and hand luggage with you on the San Diego Ontario, CA bus route free of charge. Simply use our search to find a bus 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 traveling 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 9 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 9 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

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!