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 Executive Lines, FlixBus or Greyhound US for the next days.

today

$33

tomorrow

$33

Monday

$27

Tuesday

$29

Wednesday

$26

Thursday

$25

Friday

$25

Cheapest bus trips today
BertCompanyCountOneCompanyName	Duration	Departure time	From	Departure	Arrival time	To	Destination	Seat classes	Price
Greyhound US	6h 25m	7:05 PM	San Diego	San Ysidro Transit Center	1:30 AM	Ontario, CA	Montclair Place	Economy	$33	A Bus from Greyhound US goes from San Ysidro Transit Center, San Diego (USA) at 7/25/2026 7:05:00 PM to Montclair Place, Ontario, CA (USA) arriving at 7/26/2026 1:30:00 AM. 50 Economy ticket for $33 per person are available. Travel duration is 6h 25m
Executive Lines	2h 55m	2:00 PM	San Diego	San Ysidro Transit Center	4:55 PM	Ontario, CA	S Euclid Ave	Economy	$42	A Bus from Executive Lines goes from San Ysidro Transit Center, San Diego (USA) at 7/25/2026 2:00:00 PM to S Euclid Ave, Ontario, CA (USA) arriving at 7/25/2026 4:55:00 PM. 50 Economy ticket for $42 per person are available. Travel duration is 2h 55m
Executive Lines	2h 55m	4:00 PM	San Diego	San Ysidro Transit Center	6:55 PM	Ontario, CA	S Euclid Ave	Economy	$42	A Bus from Executive Lines goes from San Ysidro Transit Center, San Diego (USA) at 7/25/2026 4:00:00 PM to S Euclid Ave, Ontario, CA (USA) arriving at 7/25/2026 6:55:00 PM. 50 Economy ticket for $42 per person are available. Travel duration is 2h 55m
Executive Lines	2h 55m	6:00 PM	San Diego	San Ysidro Transit Center	8:55 PM	Ontario, CA	S Euclid Ave	Economy	$42	A Bus from Executive Lines goes from San Ysidro Transit Center, San Diego (USA) at 7/25/2026 6:00:00 PM to S Euclid Ave, Ontario, CA (USA) arriving at 7/25/2026 8:55:00 PM. 50 Economy ticket for $42 per person are available. Travel duration is 2h 55m

Cheapest bus trips tomorrow
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

Did you know that if you travel from San Diego to Ontario, CA via Los Angeles, you can save more than $8? You can find the corresponding connections below.
- FlixBus
  
  8h 35m
  
  0
  
  3:55 PM
  
  San Diego
  Old Town Transit Center
  
  7:35 PM
  
  Los Angeles
  Union Station
  
  0
  
  Economy
  
  $19
  
  A Bus from FlixBus goes from Old Town Transit Center, San Diego (USA) at 7/26/2026 3:55:00 PM to Union Station, Los Angeles (USA) arriving at 7/26/2026 7:35:00 PM. 50 Economy ticket for $19 per person are available. Travel duration is 3h 40m
- FlixBus
  
  1h 35m
  
  0
  
  10:55 PM
  
  Los Angeles
  University of California (curbside)
  
  12:30 AM
  
  Ontario, CA
  Montclair Place
  
  0
  
  Economy
  
  $6
  
  A Bus from FlixBus goes from University of California (curbside), Los Angeles (USA) at 7/26/2026 10:55:00 PM to Montclair Place, Ontario, CA (USA) arriving at 7/27/2026 12:30:00 AM. 50 Economy ticket for $6 per person are available. Travel duration is 1h 35m
Travel time is 2h 20m longer, but you will save $8

Cheapest bus trips Monday
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

Cheapest bus trips Tuesday
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	$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

Did you know that if you travel from San Diego to Ontario, CA via Los Angeles, you can save more than $4? You can find the corresponding connections below.
- Greyhound US
  
  4h 35m
  
  0
  
  7:55 PM
  
  San Diego
  Old Town Transit Center
  
  10:30 PM
  
  Los Angeles
  Union Station
  
  0
  
  Economy
  
  $19
  
  A Bus from Greyhound US goes from Old Town Transit Center, San Diego (USA) at 7/28/2026 7:55:00 PM to Union Station, Los Angeles (USA) arriving at 7/28/2026 10:30:00 PM. 50 Economy ticket for $19 per person are available. Travel duration is 2h 35m
- FlixBus
  
  1h 35m
  
  0
  
  10:55 PM
  
  Los Angeles
  University of California (curbside)
  
  12:30 AM
  
  Ontario, CA
  Montclair Place
  
  0
  
  Economy
  
  $6
  
  A Bus from FlixBus goes from University of California (curbside), Los Angeles (USA) at 7/28/2026 10:55:00 PM to Montclair Place, Ontario, CA (USA) arriving at 7/29/2026 12:30:00 AM. 50 Economy ticket for $6 per person are available. Travel duration is 1h 35m
Travel Time is 1h 40m shorter, and you will save $4

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
Greyhound US	7h 10m	4:55 AM	San Diego	San Ysidro Transit Center	12:05 PM	Ontario, CA	Montclair Place	Economy	$29	A Bus from Greyhound US goes from San Ysidro Transit Center, San Diego (USA) at 7/29/2026 4:55:00 AM to Montclair Place, Ontario, CA (USA) arriving at 7/29/2026 12:05:00 PM. 50 Economy ticket for $29 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	$29	A Bus from FlixBus goes from San Ysidro Transit Center, San Diego (USA) at 7/29/2026 6:55:00 AM to Montclair Place, Ontario, CA (USA) arriving at 7/29/2026 1:50:00 PM. 50 Economy ticket for $29 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 7/29/2026 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

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 0m	4:55 AM	San Diego	San Ysidro Transit Center	11:55 AM	Ontario, CA	Montclair Place	Economy	$31	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 11:55:00 AM. 50 Economy ticket for $31 per person are available. Travel duration is 7h 0m
FlixBus	6h 55m	6:55 AM	San Diego	San Ysidro Transit Center	1:50 PM	Ontario, CA	Montclair Place	Economy	$32	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 $32 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

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.

Friday is the busiest day, with more than 15 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 15 buses from San Diego to Ontario, CA, while Night sees the fewest connections between San Diego and Ontario, CA, with 9 offers.

Test cheapest views

The cheapest bus for the 7/23/2026 costs just $22, from Greyhound US

Facts about the bus from San Diego to Ontario, CA

Compare all providers like Executive Lines, FlixBus and Greyhound US that travel 7 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 $22!

Cheapest Bus	$22
Fastest Bus	2h 54m
Earliest Bus	2:00 PM
Latest Bus	8:00 PM
Daily Bus Routes	7 Ø
Distance	97.1 miles
Bus Companies	Executive Lines, FlixBus and Greyhound US

Cheapest bus connections from San Diego to Ontario, CA

Every day, 7 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 07/25/2026 and for the following days.

Sunday

Monday

Tuesday

Wednesday

Thursday

Friday

Saturday

Sunday 07/19

Monday 07/20

Tuesday 07/21

Wednesday 07/22

Thursday 07/23

Friday 07/24

Saturday 07/25

$27

Sunday 07/26

$33

Monday 07/27

$42

Tuesday 07/28

$29

Wednesday 07/29

$26

Thursday 07/30

$23

Friday 07/31

$42

Saturday 08/01

$29

Sunday 08/02

$34

Monday 08/03

$27

Tuesday 08/04

$28

Wednesday 08/05

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

$25

Thursday 08/13

$29

Friday 08/14

Saturday 08/15

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 $30.

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.

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

Santa Fe Depot

Kettner Blvd 1050

Seaport Village

W Harbor Dr 789

Downtown

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 $22 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 $22 and $42. 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 7 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 2:00 PM. 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 8:00 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 Executive Lines, FlixBus 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: Executive Lines, FlixBus 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.

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!