The cheapest and fastest buses from Ontario, CA to San Diego, CA
Cheapest price
$61
Average price
$73
Fastest journey
5 h 20 m
Average duration
5 h 49 m
Buses per day
20
Distance
157 km
The best way to find a cheap bus ticket from Ontario, CA to San Diego, CA is to book your journey as far in advance as possible and to avoid traveling at rush hour.
The average ticket from Ontario, CA to San Diego, CA will cost around $73 if you buy it on the day, but the cheapest tickets can be found for only $61.
It's difficult to get from Ontario, CA to San Diego, CA without transferring at least once.
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FlixBusTravel Information
Compare bus and flight for Ontario, CA to San Diego, CA
Omio recommends booking the bus as it is the most popular option from Ontario, CA to San Diego, CA among Omio's users. If you are prioritising price take the bus with prices starting from $33. For those with little time consider booking a flight which can get you there in 3h 47m. The ticket price range depends on the travel mode: a bus costs an average of $33, and a flight costs an average of $131.
Distance: 97 miles (157 km)
Compare bus with
Most popular Bus | Flight |
|---|---|
$49 Average price Cheapest | $366 Average price |
4h 35m Average total duration 4h 5m Onboard + 30m Additional time* | 6h 47m Average total duration Fastest 3h 47m Onboard + 3h 0m Additional time* |
Direct Options | Direct Options |
Ontario, CA to San Diego, CA Bus Timetables
| Operator | Departure Time | Arrival Time | Duration | Departure days | Cheapest price |
|---|---|---|---|---|---|
Operator Greyhound | Departure Time 04:20AM | Arrival Time 11:45AM | Duration 7h25 | Departure days Thu, Fri | Cheapest price $60 |
Operator FlixBus | Departure Time 04:20AM | Arrival Time 02:10PM | Duration 9h50 | Departure days Thu, Fri | Cheapest price $61 |
Operator FlixBus | Departure Time 09:35AM | Arrival Time 03:55PM | Duration 6h20 | Departure days Thu, Fri | Cheapest price $61 |
Operator FlixBus | Departure Time 12:00PM | Arrival Time 06:10PM | Duration 6h10 | Departure days Thu, Fri | Cheapest price $61 |
Operator Greyhound | Departure Time 02:35PM | Arrival Time 11:50PM | Duration 9h15 | Departure days Thu, Fri | Cheapest price $62 |
Operator FlixBus | Departure Time 02:35PM | Arrival Time 09:45PM | Duration 7h10 | Departure days Thu, Fri | Cheapest price $61 |
Operator FlixBus | Departure Time 03:00PM | Arrival Time 09:45PM | Duration 6h45 | Departure days Thu, Fri | Cheapest price $61 |
Operator Greyhound | Departure Time 03:00PM | Arrival Time 11:50PM | Duration 8h50 | Departure days Thu, Fri | Cheapest price $62 |
Live departures
Ontario, CA to San Diego, CA bus times
The table below shows live departures for Ontario, CA to San Diego, CA buses for today, Thursday, March 19. You can also manually refresh the results below to see updated bus journeys.
| Provider | Departs | Duration | Arrives | Transfers | Tickets |
|---|---|---|---|---|---|
undefined · undefined+ FlixBus | 4:35 PM Montclair, Richton Street (Montclair Transcenter Paking), CA | 7h35 | 12:10 AM San Diego, San Ysidro Transit Center | 2 transfers | |
undefined · undefined+ FlixBus | 4:35 PM Montclair, Richton Street (Montclair Transcenter Paking), CA | 6h20 | 10:55 PM La Jolla, UCSD Health La Jolla Station, CA | 2 transfers | |
undefined · undefined+ FlixBus | 4:35 PM Montclair, Richton Street (Montclair Transcenter Paking), CA | 6h50 | 11:25 PM San Diego, Congress Street (Old Town Park), CA | 2 transfers | |
FlixBus · FlixBus | 7:00 PM Montclair, Moreno And Lindero E, CA | 6h45 | 1:45 AM San Diego, San Ysidro Transit Center | 1 transfer | |
FlixBus · FlixBus | 7:00 PM Montclair, Moreno And Lindero E, CA | 6h10 | 1:10 AM San Diego, Congress Street (Old Town Park), CA | 1 transfer | |
FlixBus · FlixBus | 7:00 PM Montclair, Moreno And Lindero E, CA | 5h35 | 12:35 AM La Jolla, UCSD Health La Jolla Station, CA | 1 transfer | |
FlixBus+![]() | 9:35 PM Montclair, Moreno And Lindero E, CA | 9h15 | 6:50 AM San Diego, Congress Street (Old Town Park), CA | 1 transfer | |
FlixBus · FlixBus | 9:35 PM Montclair, Moreno And Lindero E, CA | 7h40 | 5:15 AM San Diego, West Harbor Drive (The Headquarters at Seaport District), CA | 1 transfer | |
FlixBus · FlixBus | 9:35 PM Montclair, Moreno And Lindero E, CA | 8h10 | 5:45 AM San Diego, San Ysidro Transit Center | 1 transfer | |
FlixBus · FlixBus | 9:35 PM Montclair, Moreno And Lindero E, CA | 7h10 | 4:45 AM La Jolla, UCSD Health La Jolla Station, CA | 1 transfer | |
+ FlixBus | 10:00 PM Montclair, Richton Street (Montclair Transcenter Paking), CA | 7h45 | 5:45 AM San Diego, San Ysidro Transit Center | 1 transfer | |
+ FlixBus | 10:00 PM Montclair, Richton Street (Montclair Transcenter Paking), CA | 7h15 | 5:15 AM San Diego, West Harbor Drive (The Headquarters at Seaport District), CA | 1 transfer | |
+ FlixBus | 10:00 PM Montclair, Richton Street (Montclair Transcenter Paking), CA | 6h45 | 4:45 AM La Jolla, UCSD Health La Jolla Station, CA | 1 transfer | |
undefined · undefined | 10:00 PM Montclair, Richton Street (Montclair Transcenter Paking), CA | 8h50 | 6:50 AM San Diego, Congress Street (Old Town Park), CA | 1 transfer | |
| Friday, March 20 | |||||
undefined · undefined | 11:20 AM Montclair, Richton Street (Montclair Transcenter Paking), CA | 7h25 | 6:45 PM San Diego, Congress Street (Old Town Park), CA | 1 transfer | |
+ FlixBus | 11:20 AM Montclair, Richton Street (Montclair Transcenter Paking), CA | 5h20 | 4:40 PM La Jolla, UCSD Health La Jolla Station, CA | 1 transfer | |
+ FlixBus | 11:20 AM Montclair, Richton Street (Montclair Transcenter Paking), CA | 6h15 | 5:35 PM San Diego, San Ysidro Transit Center | 1 transfer | |
+ FlixBus | 11:20 AM Montclair, Richton Street (Montclair Transcenter Paking), CA | 5h45 | 5:05 PM San Diego, West Harbor Drive (The Headquarters at Seaport District), CA | 1 transfer | |
+ FlixBus | 11:20 AM Montclair, Richton Street (Montclair Transcenter Paking), CA | 9h50 | 9:10 PM San Diego, Congress Street (Old Town Park), CA | 1 transfer | |
This is the last bus of the day. | |||||
Find all the dates and times for this journey
Compare prices and tickets Ontario, CA to San Diego, CA by bus or flight
Compare bus and flight prices over the next three weeks. See the best deals at a glance, find the lowest fares, and choose the option that fits your budget.
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Mar 26
Why should you book Ontario, CA to San Diego, CA buses with Omio?
Why book with Omio vs FlixBus?
- Compare with other providers: On Omio, you can not only buy tickets for FlixBus, but also compare tickets for the likes of Greyhound or Infobus to find the best option for your trip from Ontario, CA to San Diego, CA.
- Designed for International Travelers: Omio is in your language including 24/7 customer service and offers multiple payment options, including PayPal, credit cards, and bank transfer, in your preferred currency.
- Compare all your options: Omio allows you to compare FlixBus with all available travel options, which are bus and flight to ensure you get the best deal for traveling from Ontario, CA to San Diego, CA.
Why book with Omio over Wanderu, Trainline or Busbud?
- Compare with other providers: On Omio, you can also compare tickets for the likes of Greyhound or Infobus to find the best option for your trip from Ontario, CA to San Diego, CA.
- Multiple modes of transport: Omio allows you to compare travel options including bus and flight to find the ideal travel option from Ontario, CA to San Diego, CA.
Journey information
Overview: Bus from Ontario, CA to San Diego, CA
Buses from Ontario, CA to San Diego, CA run on average 9 times per day, taking around 4h 5m. Cheap bus tickets for this journey start at $33 (€27) if you book in advance.
There are 1 buses per day. The earliest bus runs at 00:05, the last at 22:00. The fastest bus covers the 97 miles (157 km) distance in 3h 40m.
Distance 97 miles (157 km) |
Average bus duration 4h 5m |
Cheapest ticket price $33 (€27) |
Buses per day 9 |
Direct buses 1 |
Fastest bus 3h 40m |
First bus 00:05 |
Last bus 22:00 |
Cheapest month Feb |
Cheapest day Tue |
High season Jul - Sep |
Low season Jan - Mar |
Best day to book ahead 77 days |
Bus providers: FlixBus, Greyhound, Infobus from Ontario, CA to San Diego, CAYou can travel by bus between Ontario, CA to San Diego, CA with FlixBus, Greyhound, Infobus for as low as $33 (€27). When you search for schedules and tickets, Omio will show you the best journey
FlixBus
Infobus
Greyhound
FAQs: Bus from Ontario, CA to San Diego, CA
Find answers to the most common questions about traveling from Ontario, CA to San Diego, CA by bus. From journey times and ticket prices to direct connections, first and last departures, and even whether the route is scenic, our FAQs cover everything you need to plan your trip. Whether you’re looking for the fastest bus, the cheapest option, or tips for making the most of your visit at San Diego, CA, this guide helps you travel smarter and with confidence.

- Infobus
- Assistance
- Priority seating
- Transport for wheelchairs and mobility aids.
- Greyhound
- Assistance
- Priority seating
- Wheelchair-accessible buses.
- FlixBus
- Assistance
- Priority boarding
- Wheelchair-accessible buses.
- Balboa Park, a sprawling urban park with museums, gardens, and the San Diego Zoo
- USS Midway Museum, a historic naval aircraft carrier museum offering interactive exhibits and tours
- La Jolla Cove, a picturesque coastal area known for its stunning views and marine life
- Gaslamp Quarter, a lively historic district with Victorian architecture, dining, and entertainment options
- Coronado Beach, a beautiful sandy beach known for its gentle waves and iconic hotel.
- Explore the vibrant art scene at the Museum of Contemporary Art San Diego
- enjoy a harbor cruise for stunning views of the skyline and naval ships
- hike the scenic trails at Torrey Pines State Natural Reserve
- visit the Birch Aquarium to learn about marine life and ocean conservation
- experience the thrill of a whale watching tour off the coast.
- Infobus
- You can cancel your ticket up to 24 hours before departure for a partial refund. Cancellations within 24 hours may incur a fee.
- Greyhound
- You can cancel your ticket for a refund or exchange up to 24 hours before departure, for a cancellation fee applied.
- FlixBus
- You can cancel your ticket up to 15 minutes before departure and receive a voucher for future travel. Refund requests for delays over 120 minutes are possible.
- Infobus
- One carry-on bag up to 5kg (40x20x25) and one checked bag up to 20kg (50x30x80).
- Greyhound
- One carry-on bag up to 25 lbs (11 kg) and one checked bag up to 50 lbs (23 kg).
- FlixBus
- One carry-on bag up to 7kg (42x30x18 cm) and one checked bag up to 20kg (80x50x30 cm).
- Infobus
- 10€ per additional bag.
- Greyhound
- $15 per additional bag.
- FlixBus
- Additional luggage can be purchased for a fee.
- Infobus
- Small pets allowed in carriers
- larger pets may require a separate ticket.
- FlixBus
- Small pets in carriers allowed
- guide dogs travel for free.
popular bus stations
Popular bus stations from Ontario, CA to San Diego, CA
Most popular bus connections from Ontario, CA
More options for your journey from Ontario, CA to San Diego, CA
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