How far is Fontana, CA from Rancho Santa Margarita, CA?
The driving distance from Fontana, CA to Rancho Santa Margarita, CA is about 52.4 miles (84.4 km), with a travel time of about 01h 05m by car.
- The straight-line flight distance is about 32.6 miles (52.5 km).
- For a round trip, plan for roughly 02h 11m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 8:00 AM to 10:00 AM PDT.
Reverse, save, or send this route
This route works well as a day trip with time at the destination. Copy the route link, send it to another device, or print a clean version before you head out.
This route works well as a day trip with time at the destination.
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 01h 05m.
A morning start gives you useful time at the destination and keeps the return out of the late evening.
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 Riverside County, California.
Route Weather Snapshot
Check the forecast at both ends before you head out.
Mostly Sunny
Mostly Sunny
Driving Route Map
The map below follows the saved road route between Fontana and Rancho Santa Margarita.
Turn-by-Turn Driving Directions
Step-by-step road directions between Fontana and Rancho Santa Margarita.
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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
5.4 mi · 6 min · San Bernardino Freeway
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5
Take the exit slight right toward I 15 South, I 15 North: Barstow, San Diego
1390 ft · 34 sec
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6
Keep slight left to continue on I 15 South: San Diego
1.2 km · 2 min
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7
Merge slight left onto Ontario Freeway
2.8 mi · 3 min · Ontario Freeway
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8
Keep slight right to continue on Ontario Freeway
2066 ft · 27 sec · Ontario Freeway
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9
Continue on Corona Freeway
2.4 mi · 3 min · Corona Freeway
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10
Take the exit slight right toward Limonite Avenue
1819 ft · 48 sec
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11
Turn right onto Limonite Avenue
2393 ft · 50 sec · Limonite Avenue
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12
Turn left onto Hamner Avenue
2.6 mi · 5 min · Hamner Avenue
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13
Turn left onto 6th Street
108 m · 14 sec · 6th Street
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14
Take the ramp right toward I 15 South: San Diego
1646 ft · 42 sec
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15
Merge slight left onto Corona Freeway
3.3 mi · 4 min · Corona Freeway
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16
Take the exit slight right toward CA 91 West: Beach Cities
3092 ft · 48 sec
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17
Continue straight
9.1 mi · 11 min
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18
Take the exit slight right toward CA 241 South: Irvine
1.2 mi · 1 min
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19
Continue on Eastern Transportation Corridor
5.7 mi · 7 min · Eastern Transportation Corridor
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20
Keep slight left to continue on Foothill Transportation Corridor
14.5 mi · 17 min · Foothill Transportation Corridor
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21
Arrive at your destination
0 m · 1 sec · Foothill Transportation Corridor
Car Route Details
A richer read on the saved driving route between Fontana and Rancho Santa Margarita.
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.
Foothill Transportation Corridor
Keep slight left to continue on Foothill Transportation Corridor
14.5 mi · 00h 17m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
A comfortable day-trip route
This route works well as a day trip. You can leave in the morning, spend meaningful time at the destination, and still return the same day.
Mostly Sunny leaving Fontana and Mostly Sunny near Rancho Santa Margarita.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Fontana to Rancho Santa Margarita?
The road trip is about 52.4 miles (84.4 km) and usually takes 01h 05m in normal driving conditions.
Is this a same-day trip or an overnight route?
This route works well as a day trip. You can leave in the morning, spend meaningful time at the destination, and still return the same day.
What is the halfway point on this route?
Corona is a useful midpoint, sitting about 26.2 miles from Fontana and 26.2 miles from Rancho Santa Margarita.
How much longer is the road route than the straight-line distance?
The direct path is about 32.6 miles (52.5 km), while the road route adds roughly 19.8 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 8:00 AM to 10:00 AM PDT. If you want a more comfortable same-day return, try to leave by 4:18 PM PDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $10.67 one way or $21.35 round trip. Estimated CO2 is about 16.4 kg one way.
What should you check before leaving?
Before you leave, expect Mostly Sunny around Fontana and Mostly Sunny near Rancho Santa Margarita.
Stop Ideas Near Corona
Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.
Embassy Suites by Hilton Anaheim North
City of Riverside
Chino City Hall
Diamond Hills Plaza Shopping Center
Transit and Meeting Points
Useful pickup, handoff, or rendezvous points close to Corona.
Riverside–Downtown
Ontario
Moreno Valley, California
Pomona station
Flight Path Map
This map shows the direct air route between Fontana and Rancho Santa Margarita. Straight-line distance: 32.64 mi (52.53 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 Rancho Santa Margarita
A city in Orange County, California.
| Population | 47,569 |
| Coordinates | 33.6408600, -117.6031000 |
| Altitude | 289 |
| Country | United States |
End: Rancho Santa Margarita (-117.6031, 33.64086)
Estimated Travel Time
Distance: 84 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 01h 44m |
| 40 mph (64.37 km/h) | 01h 18m |
| 50 mph (80.47 km/h) | 01h 02m |
| 60 mph (96.56 km/h) | 00h 52m |
| 70 mph (112.65 km/h) | 00h 44m |
| 80 mph (129 km/h) | 00h 39m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $5.77 | $10.67 | $21.35 |
| Mid-grade | $6.07 | $11.22 | $22.44 |
| Premium | $6.24 | $11.55 | $23.10 |
| Diesel | $7.57 | $14.00 | $28.00 |
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 23, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.