How far is Ontario, CA from Riverside, CA?
The driving distance from Ontario, CA to Riverside, CA is about 23.5 miles (37.8 km), with a travel time of about 00h 31m by car.
- The straight-line flight distance is about 16.5 miles (26.5 km).
- For a round trip, plan for roughly 01h 02m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 7:00 AM to 7:00 PM PDT.
Reverse, save, or send this route
This is an easy same-day return drive. Copy the route link, send it to another device, or print a clean version before you head out.
This is an easy same-day return drive.
Flight Distance
Driving Distance
Gas Cost Calculator
Leave and Arrive Planner
Pick a departure time to see your estimated arrival and same-day return window.
Drive time stays fixed at 00h 31m.
This is a short drive, so your comfort window is wide. Traffic and current weather matter more than the clock.
This departure sits inside the recommended comfort window for the route.
Halfway Point
A useful midpoint for breaks, coffee, or meeting in the middle.
The most populous city in Riverside County, California.
Route Weather Snapshot
Check the forecast at both ends before you head out.
Mostly Sunny
Sunny
Driving Route Map
The map below follows the saved road route between Ontario and Riverside.
Turn-by-Turn Driving Directions
Step-by-step road directions between Ontario and Riverside.
-
1
Start on Holt Boulevard
27 m · 7 sec · Holt Boulevard
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2
Turn left onto Euclid Avenue
3028 ft · 57 sec · Euclid Avenue
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3
Turn left onto West Mission Boulevard
1.3 mi · 2 min · West Mission Boulevard
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4
Continue on Mission Boulevard
6.6 mi · 9 min · Mission Boulevard
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5
Continue on Van Buren Boulevard
6.1 mi · 9 min · Van Buren Boulevard
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6
Turn left onto Central Avenue
3.6 mi · 6 min · Central Avenue
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7
Turn sharp right
52 m · 13 sec
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8
Arrive at your destination
0 m · 1 sec
Car Route Details
A richer read on the saved driving route between Ontario and Riverside.
Turn-heavy local drive
The route has frequent decision points for its length, so lane choice and turn timing will matter more than cruising speed.
Mission Boulevard
Continue on Mission Boulevard
6.58 mi · 00h 09m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
A short regional drive
This route is short enough to handle as a quick errand, commute, or easy same-day return without much planning overhead.
Mostly Sunny leaving Ontario and Sunny near Riverside.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Ontario to Riverside?
The road trip is about 23.5 miles (37.8 km) and usually takes 00h 31m in normal driving conditions.
Is this a same-day trip or an overnight route?
This route is short enough to handle as a quick errand, commute, or easy same-day return without much planning overhead.
What is the halfway point on this route?
Jurupa Valley is a useful midpoint, sitting about 9.1 miles from Ontario and 14.5 miles from Riverside.
How much longer is the road route than the straight-line distance?
The direct path is about 16.5 miles (26.5 km), while the road route adds roughly 7 extra miles because roads do not follow the straight air line.
When is the best time to leave for this route?
A good departure window is usually 7:00 AM to 7:00 PM PDT. If you want a more comfortable same-day return, try to leave by 7:28 PM PDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $4.79 one way or $9.58 round trip. Estimated CO2 is about 7.4 kg one way.
What should you check before leaving?
Before you leave, expect Mostly Sunny around Ontario and Sunny near Riverside.
Stop Ideas Near Jurupa Valley
Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.
Ayres Hotel Chino Hills
City Hall
Chino City Hall
Jurupa Valley City Hall
Transit and Meeting Points
Useful pickup, handoff, or rendezvous points close to Jurupa Valley.
Riverside–Downtown
Ontario
Moreno Valley, California
Claremont, California
Flight Path Map
This map shows the direct air route between Ontario and Riverside. Straight-line distance: 16.45 mi (26.47 km).
#1 Ontario
The second most populous city in San Bernardino County, California.
| Population | 183,393 |
| Coordinates | 34.0633400, -117.6508900 |
| Altitude | 306 |
| Country | United States |
#2 Riverside
The most populous city in Riverside County, California and the center of the Riverside metropolitan area.
| Population | 330,786 |
| Coordinates | 33.9533500, -117.3961600 |
| Altitude | 252 |
| Country | United States |
End: (-117.396162, 33.953244)
Estimated Travel Time
Distance: 38 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 00h 47m |
| 40 mph (64.37 km/h) | 00h 35m |
| 50 mph (80.47 km/h) | 00h 28m |
| 60 mph (96.56 km/h) | 00h 23m |
| 70 mph (112.65 km/h) | 00h 20m |
| 80 mph (129 km/h) | 00h 17m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $5.77 | $4.79 | $9.58 |
| Mid-grade | $6.07 | $5.03 | $10.07 |
| Premium | $6.24 | $5.18 | $10.36 |
| Diesel | $7.57 | $6.28 | $12.56 |
Assumes 8.3 L/100 km (about 28.3 MPG). CO2 is an estimate and varies by vehicle, fuel blend, traffic, and terrain.
Prices in California · Apr 18, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.