How far is Alum Rock, CA from Fontana, CA?
The driving distance from Alum Rock, CA to Fontana, CA is about 384.8 miles (619.2 km), with a travel time of about 07h 17m by car.
- The straight-line flight distance is about 334.4 miles (538.1 km).
- For a round trip, plan for roughly 14h 35m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 6:00 AM to 7:30 AM PDT.
Reverse, save, or send this route
This drive is better planned with a longer stop or an overnight stay. Copy the route link, send it to another device, or print a clean version before you head out.
This drive is better planned with a longer stop or an overnight stay.
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 07h 17m.
Starting early still helps, but most travelers will want a longer stop or an overnight stay on a route this long.
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.
Census-designated place in Kern County, California
Route Weather Snapshot
Check the forecast at both ends before you head out.
Partly Cloudy
Patchy Fog then Partly Sunny
Driving Route Map
The map below follows the saved road route between Alum Rock and Fontana.
Turn-by-Turn Driving Directions
Step-by-step road directions between Alum Rock and Fontana.
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1
Start on Alum Rock Avenue
24 m · 4 sec · Alum Rock Avenue
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2
Turn right onto Stewart Avenue
605 ft · 29 sec · Stewart Avenue
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3
Turn right onto Rose Avenue
113 m · 21 sec · Rose Avenue
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4
Turn left onto South White Road
1.1 km · 1 min · South White Road
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5
Turn right onto Story Road
2940 ft · 1 min · Story Road
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6
Turn left onto East Capitol Expressway
3.8 mi · 6 min · East Capitol Expressway
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7
Take the exit right toward US 101 South: Gilroy
1410 ft · 32 sec
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8
Merge slight left onto Bayshore Freeway
25.6 mi · 30 min · Bayshore Freeway
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9
Take the exit slight right toward CA 152 East: 10th Street, Pacheco Pass Road
1539 ft · 40 sec
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10
Turn left onto East 10th Street
108 m · 13 sec · East 10th Street
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11
Continue on Pacheco Pass Highway
40.6 mi · 50 min · Pacheco Pass Highway
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12
Take the exit slight right toward I 5: Los Angeles
3148 ft · 1 min
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13
Merge slight left onto Westside Freeway
181.1 mi · 3 hr 14 min · Westside Freeway
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14
Keep slight right
58.4 mi · 1 hr 7 min
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15
Keep slight left to continue on Golden State Freeway
2 mi · 2 min · Golden State Freeway
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16
Take the exit slight right toward I 210 East: Pasadena
1347 ft · 18 sec
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17
Continue on Foothill Freeway
24.4 mi · 28 min · Foothill Freeway
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18
Keep slight right to continue on Foothill Freeway
19.1 mi · 22 min · Foothill Freeway
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19
Keep slight right to continue on Foothill Freeway
2.9 mi · 3 min · Foothill Freeway
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20
Keep slight right to continue on Foothill Freeway
1.4 mi · 2 min · Foothill Freeway
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21
Keep slight right to continue on Foothill Freeway
1.2 mi · 1 min · Foothill Freeway
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22
Keep slight right to continue on Foothill Freeway
1.8 mi · 2 min · Foothill Freeway
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23
Keep slight right to continue on Foothill Freeway
16.1 mi · 19 min · Foothill Freeway
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24
Take the exit slight right toward Sierra Avenue
1796 ft · 46 sec
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25
Turn right onto Sierra Avenue
3 mi · 5 min · Sierra Avenue
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26
Turn left onto Merrill Avenue
63 m · 4 sec · Merrill Avenue
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27
Arrive at your destination
0 m · 1 sec · Merrill Avenue
Car Route Details
A richer read on the saved driving route between Alum Rock and Fontana.
Long-distance drive
This route is long enough that fuel, rest stops, weather, and timing matter more than any single maneuver.
Westside Freeway
Merge slight left onto Westside Freeway
181 mi · 03h 14m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
Better with a longer stop
This route is long enough that most travelers will be better off planning an overnight stay or a more deliberate stop window.
Partly Cloudy leaving Alum Rock and Patchy Fog then Partly Sunny near Fontana.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Alum Rock to Fontana?
The road trip is about 384.8 miles (619.2 km) and usually takes 07h 17m in normal driving conditions.
Is this a same-day trip or an overnight route?
This route is long enough that most travelers will be better off planning an overnight stay or a more deliberate stop window.
What is the halfway point on this route?
Lost Hills is a useful midpoint, sitting about 192.4 miles from Alum Rock and 192.4 miles from Fontana.
How much longer is the road route than the straight-line distance?
The direct path is about 334.4 miles (538.1 km), while the road route adds roughly 50.4 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 6:00 AM to 7:30 AM PDT. Starting early still helps, but most travelers will want a longer stop or an overnight stay on a route this long.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $78.34 one way or $156.69 round trip. Estimated CO2 is about 120.7 kg one way.
What should you check before leaving?
Before you leave, expect Partly Cloudy around Alum Rock and Patchy Fog then Partly Sunny near Fontana.
Stop Ideas Near Lost Hills
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 Lost Hills.
Wasco station
Kettleman City, California
Corcoran station
Bakersfield
Flight Path Map
This map shows the direct air route between Alum Rock and Fontana. Straight-line distance: 334.37 mi (538.11 km).
#1 Alum Rock
Census-designated place in Santa Clara County, California
| Population | 15,536 |
| Coordinates | 37.3660500, -121.8271800 |
| Altitude | 46 |
| 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: 619 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 12h 49m |
| 40 mph (64.37 km/h) | 09h 37m |
| 50 mph (80.47 km/h) | 07h 41m |
| 60 mph (96.56 km/h) | 06h 24m |
| 70 mph (112.65 km/h) | 05h 29m |
| 80 mph (129 km/h) | 04h 48m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $5.77 | $78.34 | $156.69 |
| Mid-grade | $6.07 | $82.38 | $164.75 |
| Premium | $6.24 | $84.78 | $169.56 |
| Diesel | $7.57 | $102.76 | $205.52 |
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 16, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.