How far is Simi Valley, CA from Fontana, CA?
The driving distance from Simi Valley, CA to Fontana, CA is about 87.2 miles (140.3 km), with a travel time of about 01h 44m by car.
- The straight-line flight distance is about 77.9 miles (125.4 km).
- For a round trip, plan for roughly 03h 29m 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 44m.
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 Los Angeles County, California.
Route Weather Snapshot
Check the forecast at both ends before you head out.
Sunny
Mostly Sunny
Driving Route Map
The map below follows the saved road route between Simi Valley and Fontana.
Turn-by-Turn Driving Directions
Step-by-step road directions between Simi Valley and Fontana.
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1
Start on 3rd Street
808 ft · 38 sec · 3rd Street
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2
Turn right onto East Los Angeles Avenue
695 ft · 14 sec · East Los Angeles Avenue
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3
Turn left onto First Street
1.1 km · 1 min · First Street
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4
Take the ramp right toward CA 118 East
1257 ft · 33 sec
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5
Merge slight left onto Ronald Reagan Freeway
12 mi · 14 min · Ronald Reagan Freeway
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6
Keep slight right to continue on Ronald Reagan Freeway
2.5 mi · 3 min · Ronald Reagan Freeway
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7
Keep slight right to continue on Ronald Reagan Freeway
1.9 mi · 2 min · Ronald Reagan Freeway
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8
Keep slight right to continue on Ronald Reagan Freeway
2.4 mi · 3 min · Ronald Reagan Freeway
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9
Keep slight right to continue on Ronald Reagan Freeway
1.5 km · 1 min · Ronald Reagan Freeway
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10
Take the exit slight right toward I 5 South: Los Angeles
1.3 km · 2 min
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11
Merge slight left onto Golden State Freeway
11.8 mi · 14 min · Golden State Freeway
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12
Take the exit slight right toward CA 134 East: Glendale, Pasadena
1787 ft · 23 sec
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13
Merge slight right onto Ventura Freeway
1.1 km · 48 sec · Ventura Freeway
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14
Keep slight right to continue on Ventura Freeway
1.2 km · 51 sec · Ventura Freeway
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15
Keep slight right to continue on Ventura Freeway
7.2 mi · 8 min · Ventura Freeway
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16
Merge slight right onto Foothill Freeway
17.9 mi · 21 min · Foothill Freeway
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17
Keep slight right to continue on Foothill Freeway
2.9 mi · 3 min · Foothill Freeway
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18
Keep slight right to continue on Foothill Freeway
1.4 mi · 2 min · Foothill Freeway
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19
Keep slight right to continue on Foothill Freeway
1.2 mi · 1 min · Foothill Freeway
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20
Keep slight right to continue on Foothill Freeway
1.8 mi · 2 min · Foothill Freeway
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21
Keep slight right to continue on Foothill Freeway
16.1 mi · 19 min · Foothill Freeway
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22
Take the exit slight right toward Sierra Avenue
1796 ft · 46 sec
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23
Turn right onto Sierra Avenue
3 mi · 5 min · Sierra Avenue
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24
Turn left onto Merrill Avenue
63 m · 4 sec · Merrill Avenue
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25
Arrive at your destination
0 m · 1 sec · Merrill Avenue
Car Route Details
A richer read on the saved driving route between Simi Valley and Fontana.
Highway-focused drive
Most of the mileage stays on named highways, so the important moments are ramps, exits, merges, and the final local approach.
Foothill Freeway
Merge slight right onto Foothill Freeway
17.9 mi · 00h 21m
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.
Sunny leaving Simi Valley and Mostly Sunny near Fontana.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Simi Valley to Fontana?
The road trip is about 87.2 miles (140.3 km) and usually takes 01h 44m 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?
Pasadena is a useful midpoint, sitting about 43.5 miles from Simi Valley and 43.6 miles from Fontana.
How much longer is the road route than the straight-line distance?
The direct path is about 77.9 miles (125.4 km), while the road route adds roughly 9.3 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 3:00 PM PDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $17.71 one way or $35.42 round trip. Estimated CO2 is about 27.3 kg one way.
What should you check before leaving?
Before you leave, expect Sunny around Simi Valley and Mostly Sunny near Fontana.
Stop Ideas Near Pasadena
Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.
The Manor Hotel
City of South El Monte City Hall
City of Los Angeles
Vernon City Hall
Transit and Meeting Points
Useful pickup, handoff, or rendezvous points close to Pasadena.
Pasadena, California
Glendale Transportation Center
Los Angeles Union Station
La Crescenta, California
Flight Path Map
This map shows the direct air route between Simi Valley and Fontana. Straight-line distance: 77.93 mi (125.41 km).
#1 Simi Valley
The third most populous city in Ventura County, California.
| Population | 125,168 |
| Coordinates | 34.2694500, -118.7814800 |
| Altitude | 234 |
| Country | United States |
#2 Fontana
The second most populous city in San Bernardino County, California.
| Population | 216,173 |
| Coordinates | 34.0922300, -117.4350500 |
| Altitude | 377 |
| Country | United States |
End: Fontana (-117.43505, 34.09223)
Estimated Travel Time
Distance: 140 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 02h 54m |
| 40 mph (64.37 km/h) | 02h 10m |
| 50 mph (80.47 km/h) | 01h 44m |
| 60 mph (96.56 km/h) | 01h 27m |
| 70 mph (112.65 km/h) | 01h 14m |
| 80 mph (129 km/h) | 01h 05m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $5.77 | $17.71 | $35.42 |
| Mid-grade | $6.07 | $18.62 | $37.25 |
| Premium | $6.24 | $19.17 | $38.33 |
| Diesel | $7.57 | $23.23 | $46.46 |
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 22, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.