- Must visit
San Diego Museum of Art
Major Balboa Park museum with works from Spanish old masters to modern art, plus strong regional and international exhibitions.
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 $61 if you buy it on the day, but the cheapest tickets can be found for only $61.
On Sun, Nov 01, we found 1 buses from Ontario, CA to San Diego, CA, including 1 direct services.
On Sun, Nov 01 the direct buses cover the 157 km distance in an average of 4 h but if you time it right, some buses will get you there in just 4 h .
On Sun, Nov 01 the slowest buses will take 4 h and usually involve a change or two along the way, but you might be able to save a few pennies if you’re on a budget.
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Buses from Ontario, CA to San Diego, CA run on average 4 times per day, taking around 4h 10m. Cheap bus tickets for this journey start at $27 (€22) if you book in advance.
There are 1 buses per day. The earliest bus runs at 00:05, the last at 22:25. The fastest bus covers the 97 miles (157 km) distance in 2h 55m.
Plan this route
Use these quick route answers to check fares, travel time, departure options, and direct services before booking from Ontario, CA to San Diego, CA.
| Operator | Departure Time | Arrival Time | Duration | Departure days | Cheapest price |
|---|---|---|---|---|---|
Operator FlixBus | Departure Time 03:55AM | Arrival Time 11:35AM | Duration 7h40 | Departure days Thu | Cheapest price $34 |
Operator Greyhound | Departure Time 03:55AM | Arrival Time 11:45AM | Duration 7h50 | Departure days Thu | Cheapest price $31 |
Operator FlixBus | Departure Time 09:45AM | Arrival Time 05:10PM | Duration 7h25 | Departure days Thu | Cheapest price $31 |
Operator Greyhound | Departure Time 11:20AM | Arrival Time 06:45PM | Duration 7h25 | Departure days Fri | Cheapest price $60 |
Operator Tufesa Internacional | Departure Time 01:00PM | Arrival Time 05:00PM | Duration 4h00 | Departure days Tue, Sun | Cheapest price $61 |
Operator FlixBus | Departure Time 03:00PM | Arrival Time 10:45PM | Duration 7h45 | Departure days Thu | Cheapest price $31 |
Operator Greyhound | Departure Time 03:00PM | Arrival Time 11:50PM | Duration 8h50 | Departure days Thu | Cheapest price $31 |
Operator Greyhound | Departure Time 03:25PM | Arrival Time 06:50PM | Duration 3h25 | Departure days Sat | Cheapest price $42 |
Operator FlixBus | Departure Time 04:45PM | Arrival Time 11:25PM | Duration 6h40 | Departure days Wed | Cheapest price $51 |
Operator FlixBus | Departure Time 05:35PM | Arrival Time 12:25AM | Duration 6h50 | Departure days Wed, Fri | Cheapest price $48 |
Operator FlixBus | Departure Time 07:00PM | Arrival Time 12:35AM | Duration 5h35 | Departure days Mon, Wed | Cheapest price $49 |
Operator Greyhound | Departure Time 09:35PM | Arrival Time 06:50AM | Duration 9h15 | Departure days Mon | Cheapest price $65 |
Operator FlixBus | Departure Time 10:00PM | Arrival Time 04:45AM | Duration 6h45 | Departure days Fri | Cheapest price $64 |
The table below shows live departures for Ontario, CA to San Diego, CA buses for today, Saturday, October 31. You can also manually refresh the results below to see updated bus journeys.
| Provider | Departs | Duration | Arrives | Transfers | Tickets |
|---|---|---|---|---|---|
![]() | 3:25 PM Montclair, Richton Street (Montclair Transcenter Paking), CA | 4h10 | 7:35 PM San Diego, San Ysidro Transit Center | 0 transfersDirect | |
![]() | 3:25 PM Montclair, Richton Street (Montclair Transcenter Paking), CA | 3h25 | 6:50 PM San Diego, Congress Street (Old Town Park), CA | 0 transfersDirect | |
| Sunday, November 1 | |||||
0 | 1:00 PM Ontario, CA | 4h00 | 5:00 PM San Diego, CA | 0 transfersDirect | |
This is the last bus of the day. | |||||
Find all the dates and times for this journey
Buses from Ontario, CA to San Diego, CA with FlixBus, Greyhound, and Tufesa Internacional. Overnight buses available on this route with FlixBus and Greyhound. Use the details below to compare onboard facilities.
Review the details behind your booking, from operators and ticket rules to luggage, onboard amenities, accessibility, and route-specific travel policies.
Discover the best of San Diego, CA — top attractions, local food, transport tips, budget advice, and currency essentials. Plan your perfect San Diego, CA trip today.
Major Balboa Park museum with works from Spanish old masters to modern art, plus strong regional and international exhibitions.
Acclaimed contemporary art museum in La Jolla featuring oceanfront settings, modern works, and rotating global exhibitions.
Museum aboard a historic aircraft carrier with restored aircraft, naval exhibits, and immersive views of life at sea.
Balboa Park is San Diego's grand cultural park, packed with gardens, architecture, museums, and walkable plazas worth lingering in.
Historic Gaslamp Quarter offers Victorian-era streets, nightlife energy, and preserved downtown architecture for an atmospheric walk.
Dramatic seaside cliffs and walking paths in La Jolla, famous for waves, sea lions, and sweeping Pacific views.
A San Diego staple: grilled fish in a soft tortilla with cabbage, crema, and salsa. Popularized by Baja influence and coastal seafood culture.
French fries, carne asada, cheese, guacamole, and crema wrapped in a flour tortilla. A late-night local favorite born in San Diego taquerias.
Fresh local sea urchin served raw, prized for its rich, buttery taste. It reflects San Diego's access to Pacific seafood and sushi culture.
Celebrated sushi restaurant specializing in omakase and pristine seafood, including uni. Intimate, polished, and highly respected by locals.
Iconic casual seafood counter known for fish tacos, smoked fish, and harbor views. A classic stop for San Diego's Baja-inspired seafood style.
Refined fine-dining restaurant showcasing local seafood and seasonal California ingredients. Elegant room with one of the city's strongest reputations.
San Diego is pricey for US travel, with higher hotel rates, dining, and parking than many cities, though casual food and buses stay manageable.
Tip 18-20% at restaurants, 15-20% for taxis or rideshares, and $1-2 for coffee drinks or small cafe orders.
Get destination-focused answers for the end of your trip, including what to do, when to go, practical entry details, and tips for making the most of your time in 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.

Most Ontario, CA to San Diego, CA buses use the Ontario to San Diego, Congress Street (Old Town Park) station pair, with some services arriving at San Diego, San Ysidro Transit Center. Use this guide to compare Ontario, CA and San Diego, CA bus stations on this route, check city-centre transport, alongside checking practicalities like bus station facilities and services.
Ontario has practical services for this route, including Wifi, Parking, ATM, Taxis, Accessibility, WC, Shower, and Ticket Office.
Wi-Fi is available at Ontario. ATMs are available at Ontario.
Ticket office support is available at Ontario.
Available at Ontario: Parking, Taxis, WC.
Accessibility facilities are available at Ontario: Wheelchair accessible.
Ontario, International Airport is 4 km from Ontario city centre. Public transport options include:
Ontario, International Airport has practical services for this route, including Wifi, Parking, ATM, Taxis, Accessibility, WC, Shower, and Ticket Office.
Wi-Fi is available at Ontario, International Airport. ATMs are available at Ontario, International Airport.
Ticket office support is available at Ontario, International Airport.
Available at Ontario, International Airport: Parking, Taxis, WC.
Accessibility facilities are available at Ontario, International Airport: Bus stations generally accommodate all passengers.
San Diego, Congress Street (Old Town Park) is 5 km from San Diego city centre. Public transport options include:
San Diego, Congress Street (Old Town Park) has practical services for this route, including Wifi, Parking, Dining, ATM, Taxis, Accessibility, WC, Shower, and Ticket Office.
Food options include: Several dining options nearby.
Wi-Fi is available at San Diego, Congress Street (Old Town Park). ATMs are available at San Diego, Congress Street (Old Town Park).
Ticket office support is available at San Diego, Congress Street (Old Town Park).
Available at San Diego, Congress Street (Old Town Park): Parking, Taxis, WC.
Accessibility facilities are available at San Diego, Congress Street (Old Town Park): Wheelchair accessible routes available.
San Diego, San Ysidro Transit Center is 22 km from San Diego city centre. Public transport options include:
San Diego, San Ysidro Transit Center has practical services for this route, including Wifi, Parking, Dining, ATM, Taxis, Accessibility, WC, Shower, and Ticket Office.
Food options include: Several fast food eateries located nearby.
Wi-Fi is available at San Diego, San Ysidro Transit Center. ATMs are available near the entrance.
Ticket office support is available at San Diego, San Ysidro Transit Center.
Available at San Diego, San Ysidro Transit Center: Parking, Taxis, WC.
Accessibility facilities are available at San Diego, San Ysidro Transit Center: Wheelchair accessible with ramps.
San Diego, West Harbor Drive (The Headquarters at Seaport District) is 1 km from San Diego city centre. Public transport options include:
San Diego, West Harbor Drive (The Headquarters at Seaport District) has practical services for this route, including Wifi, Parking, Dining, ATM, Taxis, Accessibility, WC, Shower, and Ticket Office.
Food options include: Several dining options are in the area.
Wi-Fi is available at San Diego, West Harbor Drive (The Headquarters at Seaport District). ATMs are available at San Diego, West Harbor Drive (The Headquarters at Seaport District).
Ticket office support is available at San Diego, West Harbor Drive (The Headquarters at Seaport District).
Available at San Diego, West Harbor Drive (The Headquarters at Seaport District): Parking, Taxis, WC.
Accessibility facilities are available at San Diego, West Harbor Drive (The Headquarters at Seaport District): Accessible for persons with disabilities.
Check bus stations information for Ontario, CA and San Diego, CA, including where buses depart and arrive on this route.