Bus Tickets from Ontario, CA to San Ysidro, CA

Find affordable bus tickets from Ontario, CA to San Ysidro, CA with flexible options. Book your trip now

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TodayAug 30
from US$37
TomorrowAug 31
from US$42
MonSep 1
from US$42
TueSep 2
from US$42
WedSep 3
ThuSep 4
FriSep 5
from US$41
SatSep 6

Cheap buses leaving tomorrow

One passenger / one way

  • This trip is recommended because it is the: Cheapest + Fastest
    Departure time: August 31 at
    Departure city: Ontario
    Departure location: S Euclid Avenue
    Arrival time: August 31 at
    Destination city: San Ysidro
    Destination location: San Ysidro Bus Station
    Operated by: Executive LinesExecutive Lines
    Vehicle: BusDuration:
  • Departure time: August 31 at
    Departure city: Ontario
    Departure location: Montclair (Ontario)
    Arrival time: August 31 at
    Destination city: San Ysidro
    Destination location: San Ysidro Bus terminal
    Operated by: FlixBus + Greyhound Lines, Inc.
    FlixBus + Greyhound Lines, Inc.
    Vehicle: BusDuration:
  • Departure time: August 31 at
    Departure city: Ontario
    Departure location: Montclair (Ontario)
    Arrival time: August 31 at
    Destination city: San Ysidro
    Destination location: San Ysidro Bus terminal
    Operated by: FlixBusFlixBus
    Vehicle: BusDuration:
  • Departure time: August 31 at
    Departure city: Ontario
    Departure location: Montclair / Ontario / Claremont
    Arrival time: August 31 at
    Destination city: San Ysidro
    Destination location: San Ysidro Bus terminal
    Operated by: Greyhound Lines, Inc.Greyhound Lines, Inc.
    Vehicle: BusDuration:
  • Departure time: August 31 at
    Departure city: Ontario
    Departure location: S Euclid Avenue
    Arrival time: August 31 at
    Destination city: San Ysidro
    Destination location: San Ysidro Bus Station
    Operated by: Executive LinesExecutive Lines
    Vehicle: BusDuration:

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Bus Ontario, CA to San Ysidro, CA: Trip Overview

Average Ticket PriceUS$42
Average Bus Trip Duration6h 9m
Number of daily buses22
Earliest bus departure4:20am
Distance183 km
Latest bus departure10:25pm

Ontario to San Ysidro Bus

Busbud shows you the best bus ticket fares and bus schedules so you can easily plan and book a trip by bus from Ontario to San Ysidro.

We make it our job to connect you with the most dependable bus companies that cover bus service from Ontario to San Ysidro.

Whether it is cheap bus tickets or more luxurious buses going to San Ysidro from Ontario, we help you find what you're looking for based on how much of a budget you have.

Frequently asked questions on the trip Ontario, CA - San Ysidro, CA

  1. How far is Ontario from San Ysidro?

    Ontario and San Ysidro are 178 km (110 miles) apart.

  2. What are the departure and arrival locations for buses traveling from Ontario to San Ysidro?

    Buses departing from Ontario California Bus Stop Carl's Jr & Teriyaki House in Ontario will take you to San Ysidro Greyhound Bus Station in San Ysidro.

Find cheapest prices for buses

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

Best price found
08-28
US$31
08-29
US$35
Today
US$29
08-31
US$35
09-01
US$40
09-02
US$41
09-03
US$34
09-04
US$25
busbud logoThe cheapest trip from Ontario, CA to San Ysidro, CA was searched and found on Sep 4, 2025 with a price of US$25

To save money and be sure you have the best seat, it's a good idea to buy your bus tickets from Ontario, CA to San Ysidro, CA, as early as possible.

You can expect to pay from US$25 to US$77 for a bus ticket from Ontario, CA to San Ysidro, CA based on the last 2 days. You can expect to find the cheapest price for the trip at US$25 which is on 2025-09-04.

Usually Greyhound 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

If you're abroad, study some local language. Not only could it get you out of a pickle during your bus trip from Ontario to San Ysidro but it'll also be endearing to native speakers who will surely appreciate your effort.

From miles long of beauteous natural landscapes to impressive man-crafted sights, you’re bound to be in for a visual treat on your bus trip from Ontario to San Ysidro.

Buses are energy-efficient. Carrying a passenger over 100 kms by coach only takes 0.6-0.9 liters of gas. Compare that to the 2.6 liters required by high-speed train, 6.6 liters by airplane and 7.6 liters by gas-powered car, and it's clear that the bus is a more environmentally-conscious option for your bus transportation from Ontario to San Ysidro.

Make a music playlist for your bus ride from Ontario to San Ysidro, and enjoy the scenery to tunes from your own personal soundtrack.

Did you know?

The word 'bus' is an abbreviation of 'omnibus" which means 'for all' in Latin as buses were meant to be transportation for everybody.

The bus driver with the longest career in the world drove more than 2,000,000 miles and is a happy World Record holder.

The average number of passengers on a coach bus is 32 meaning that a bus could replace a minimum of at least 30 cars!

Will you be returning to Ontario, CA by bus?

Bus from San Ysidro, CA to Ontario, CA

Why choose Busbud?

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