How far is Lamont, CA from Fontana, CA?
The driving distance from Lamont, CA to Fontana, CA is about 152.9 miles (246 km), with a travel time of about 02h 59m by car.
- The straight-line flight distance is about 116.5 miles (187.5 km).
- For a round trip, plan for roughly 05h 59m 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 02h 59m.
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.
Mostly Sunny
Mostly Sunny
Driving Route Map
The map below follows the saved road route between Lamont and Fontana.
Turn-by-Turn Driving Directions
Step-by-step road directions between Lamont and Fontana.
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1
Start on Hall Road
7 m · 3 sec · Hall Road
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2
Turn left onto Main Street
1.5 mi · 2 min · Main Street
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3
Continue on Weedpatch Highway
1.6 km · 1 min · Weedpatch Highway
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4
Enter the roundabout and take exit 2 toward Weedpatch Highway
50 m · 3 sec · Weedpatch Highway
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5
Exit the roundabout onto Weedpatch Highway
1.6 km · 1 min · Weedpatch Highway
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6
Enter the roundabout and take exit 1 toward East Bear Mountain Boulevard
8 m · 1 sec · East Bear Mountain Boulevard
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7
Exit the roundabout onto East Bear Mountain Boulevard
5 mi · 7 min · East Bear Mountain Boulevard
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8
Turn left onto South Union Avenue
2.4 mi · 3 min · South Union Avenue
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9
Take the ramp straight toward 99
2861 ft · 35 sec
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10
Merge slight left onto Golden State Freeway
10.5 mi · 11 min · Golden State Freeway
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11
Keep slight left to continue on Golden State Freeway
58.2 mi · 1 hr 7 min · Golden State Freeway
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12
Keep slight left to continue on Golden State Freeway
2 mi · 2 min · Golden State Freeway
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13
Take the exit slight right toward I 210 East: Pasadena
1347 ft · 18 sec
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14
Continue on Foothill Freeway
24.4 mi · 28 min · Foothill Freeway
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15
Keep slight right to continue on Foothill Freeway
19.1 mi · 22 min · Foothill Freeway
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16
Keep slight right to continue on Foothill Freeway
2.9 mi · 3 min · Foothill Freeway
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17
Keep slight right to continue on Foothill Freeway
1.4 mi · 2 min · Foothill Freeway
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18
Keep slight right to continue on Foothill Freeway
1.2 mi · 1 min · Foothill Freeway
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19
Keep slight right to continue on Foothill Freeway
1.8 mi · 2 min · Foothill Freeway
-
20
Keep slight right to continue on Foothill Freeway
16.1 mi · 19 min · Foothill Freeway
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21
Take the exit slight right toward Sierra Avenue
1796 ft · 46 sec
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22
Turn right onto Sierra Avenue
3 mi · 5 min · Sierra Avenue
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23
Turn left onto Merrill Avenue
63 m · 4 sec · Merrill Avenue
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24
Arrive at your destination
0 m · 1 sec · Merrill Avenue
Car Route Details
A richer read on the saved driving route between Lamont 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.
Golden State Freeway
Keep slight left to continue on Golden State Freeway
58.2 mi · 01h 07m
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 Lamont 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 Lamont to Fontana?
The road trip is about 152.9 miles (246 km) and usually takes 02h 59m 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?
Santa Clarita is a useful midpoint, sitting about 76.4 miles from Lamont and 76.4 miles from Fontana.
How much longer is the road route than the straight-line distance?
The direct path is about 116.5 miles (187.5 km), while the road route adds roughly 36.4 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 12:30 PM PDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $31.09 one way or $62.19 round trip. Estimated CO2 is about 47.9 kg one way.
What should you check before leaving?
Before you leave, expect Mostly Sunny around Lamont and Mostly Sunny near Fontana.
Stop Ideas Near Santa Clarita
Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.
Transit and Meeting Points
Useful pickup, handoff, or rendezvous points close to Santa Clarita.
Santa Clarita-Newhall, California
Chatsworth station
Simi Valley
Van Nuys station
Flight Path Map
This map shows the direct air route between Lamont and Fontana. Straight-line distance: 116.49 mi (187.48 km).
#1 Lamont
Census-designated place in Kern County, California
| Population | 15,120 |
| Coordinates | 35.2596800, -118.9142700 |
| Altitude | 123 |
| 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: 246 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 05h 05m |
| 40 mph (64.37 km/h) | 03h 49m |
| 50 mph (80.47 km/h) | 03h 03m |
| 60 mph (96.56 km/h) | 02h 32m |
| 70 mph (112.65 km/h) | 02h 11m |
| 80 mph (129 km/h) | 01h 54m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $5.77 | $31.09 | $62.19 |
| Mid-grade | $6.07 | $32.70 | $65.39 |
| Premium | $6.24 | $33.65 | $67.30 |
| Diesel | $7.57 | $40.79 | $81.57 |
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.