How far is Fontana, CA from San Dimas, CA?
The driving distance from Fontana, CA to San Dimas, CA is about 24.4 miles (39.2 km), with a travel time of about 00h 31m by car.
- The straight-line flight distance is about 21.3 miles (34.3 km).
- For a round trip, plan for roughly 01h 03m 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.
You are leaving earlier than the recommended window, which gives you extra margin for breaks and traffic.
Halfway Point
A useful midpoint for breaks, coffee, or meeting in the middle.
The second most populous city in San Bernardino 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 Fontana and San Dimas.
Turn-by-Turn Driving Directions
Step-by-step road directions between Fontana and San Dimas.
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1
Start on Merrill Avenue
63 m · 9 sec · Merrill Avenue
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2
Turn left onto Sierra Avenue
1.6 mi · 3 min · Sierra Avenue
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3
Take the ramp slight right toward I 10 West: Los Angeles
1761 ft · 45 sec
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4
Merge slight left onto San Bernardino Freeway
5.8 mi · 7 min · San Bernardino Freeway
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5
Keep slight left to continue on I-10 Metro ExpressLanes
9.3 mi · 10 min · I-10 Metro ExpressLanes
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6
Merge slight right onto San Bernardino Freeway
1.2 mi · 1 min · San Bernardino Freeway
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7
Keep slight right to continue on San Bernardino Freeway
1.4 km · 1 min · San Bernardino Freeway
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8
Keep slight right to continue on San Bernardino Freeway
1949 ft · 26 sec · San Bernardino Freeway
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9
Take the exit slight right toward Towne Avenue
959 ft · 23 sec
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10
Turn right onto North Towne Avenue
526 ft · 19 sec · North Towne Avenue
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11
Turn left onto La Verne Avenue
1.2 km · 1 min · La Verne Avenue
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12
Continue on West la Verne Avenue
2490 ft · 52 sec · West la Verne Avenue
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13
Turn left onto East Arrow Highway
3.1 mi · 5 min · East Arrow Highway
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14
Turn right onto South San Dimas Avenue
1302 ft · 42 sec · South San Dimas Avenue
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15
Turn right onto East Bonita Avenue
38 m · 3 sec · East Bonita Avenue
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16
Arrive at your destination
0 m · 1 sec · East Bonita Avenue
Car Route Details
A richer read on the saved driving route between Fontana and San Dimas.
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.
I-10 Metro ExpressLanes
Keep slight left to continue on I-10 Metro ExpressLanes
9.31 mi · 00h 10m
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 Fontana and Sunny near San Dimas.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Fontana to San Dimas?
The road trip is about 24.4 miles (39.2 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?
Ontario is a useful midpoint, sitting about 12.2 miles from Fontana and 12.2 miles from San Dimas.
How much longer is the road route than the straight-line distance?
The direct path is about 21.3 miles (34.3 km), while the road route adds roughly 3.1 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 7:26 PM PDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $4.96 one way or $9.92 round trip. Estimated CO2 is about 7.6 kg one way.
What should you check before leaving?
Before you leave, expect Mostly Sunny around Fontana and Sunny near San Dimas.
Stop Ideas Near Ontario
Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.
Your Home Away From Home
Ayres Hotel Chino Hills
City Hall
Chino City Hall
Transit and Meeting Points
Useful pickup, handoff, or rendezvous points close to Ontario.
Ontario
Claremont, California
Pomona station
Riverside–Downtown
Flight Path Map
This map shows the direct air route between Fontana and San Dimas. Straight-line distance: 21.29 mi (34.26 km).
#1 Fontana
The second most populous city in San Bernardino County, California.
| Population | 216,173 |
| Coordinates | 34.0922300, -117.4350500 |
| Altitude | 377 |
| Country | United States |
#2 San Dimas
City in California, USA
| Population | 33,165 |
| Coordinates | 34.1066800, -117.8067300 |
| Altitude | 291 |
| Country | United States |
End: San Dimas (-117.80673, 34.10668)
Estimated Travel Time
Distance: 39 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 00h 48m |
| 40 mph (64.37 km/h) | 00h 36m |
| 50 mph (80.47 km/h) | 00h 29m |
| 60 mph (96.56 km/h) | 00h 24m |
| 70 mph (112.65 km/h) | 00h 20m |
| 80 mph (129 km/h) | 00h 18m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $5.77 | $4.96 | $9.92 |
| Mid-grade | $6.07 | $5.22 | $10.43 |
| Premium | $6.24 | $5.37 | $10.74 |
| Diesel | $7.57 | $6.51 | $13.02 |
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 19, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.