How far is King City, CA from Fontana, CA?
The driving distance from King City, CA to Fontana, CA is about 302.4 miles (486.6 km), with a travel time of about 05h 50m by car.
- The straight-line flight distance is about 254.8 miles (410.1 km).
- For a round trip, plan for roughly 11h 41m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 6:00 AM to 8:00 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 05h 50m.
An early departure helps you fit a real stop into the day without turning the return into a late-night drive.
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.
City in Monterey County, California, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Mostly Sunny
Driving Route Map
The map below follows the saved road route between King City and Fontana.
Turn-by-Turn Driving Directions
Step-by-step road directions between King City and Fontana.
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1
Start on South Third Street
32 m · 8 sec · South Third Street
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2
Turn right onto Broadway Street
864 ft · 32 sec · Broadway Street
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3
Turn right onto US 101 BUS, CR G15: South First Street
55 m · 7 sec
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4
Turn straight onto South First Street
1.1 mi · 3 min · South First Street
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5
Take the ramp left toward US 101: US 101 South
1355 ft · 33 sec
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6
Merge slight left onto El Camino Real
48.9 mi · 56 min · El Camino Real
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7
Take the exit slight right toward CA 46 East: Fresno, Bakersfield
968 ft · 30 sec
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8
Turn left
24.5 mi · 29 min
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9
Merge slight left
1.4 mi · 2 min
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10
Turn slight right
149 m · 6 sec
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11
Keep slight left to continue on Antelope Road
5.3 mi · 7 min · Antelope Road
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12
Continue on Paso Robles Highway
32.3 mi · 39 min · Paso Robles Highway
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13
Take the exit slight right
2047 ft · 25 sec
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14
Merge slight left onto Westside Freeway
56.8 mi · 1 hr 1 min · Westside Freeway
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15
Keep slight right
58.4 mi · 1 hr 7 min
-
16
Keep slight left to continue on Golden State Freeway
2 mi · 2 min · Golden State Freeway
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17
Take the exit slight right toward I 210 East: Pasadena
1347 ft · 18 sec
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18
Continue on Foothill Freeway
24.4 mi · 28 min · Foothill Freeway
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19
Keep slight right to continue on Foothill Freeway
19.1 mi · 22 min · Foothill Freeway
-
20
Keep slight right to continue on Foothill Freeway
2.9 mi · 3 min · Foothill Freeway
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21
Keep slight right to continue on Foothill Freeway
1.4 mi · 2 min · Foothill Freeway
-
22
Keep slight right to continue on Foothill Freeway
1.2 mi · 1 min · Foothill Freeway
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23
Keep slight right to continue on Foothill Freeway
1.8 mi · 2 min · Foothill Freeway
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24
Keep slight right to continue on Foothill Freeway
16.1 mi · 19 min · Foothill Freeway
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25
Take the exit slight right toward Sierra Avenue
1796 ft · 46 sec
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26
Turn right onto Sierra Avenue
3 mi · 5 min · Sierra Avenue
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27
Turn left onto Merrill Avenue
63 m · 4 sec · Merrill Avenue
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28
Arrive at your destination
0 m · 1 sec · Merrill Avenue
Car Route Details
A richer read on the saved driving route between King City 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
Keep slight right
58.3 mi · 01h 07m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
A longer out-and-back drive
This is still possible in one day, but it becomes a long driving day. Leaving early and planning your stop window matters more here.
Mostly Sunny leaving King City and Clear near Fontana.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from King City to Fontana?
The road trip is about 302.4 miles (486.6 km) and usually takes 05h 50m in normal driving conditions.
Is this a same-day trip or an overnight route?
This is still possible in one day, but it becomes a long driving day. Leaving early and planning your stop window matters more here.
What is the halfway point on this route?
Greenfield is a useful midpoint, sitting about 151.1 miles from King City and 151.2 miles from Fontana.
How much longer is the road route than the straight-line distance?
The direct path is about 254.8 miles (410.1 km), while the road route adds roughly 47.6 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 8:00 AM PDT. If you want a more comfortable same-day return, try to leave by 5:18 AM PDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $61.56 one way or $123.11 round trip. Estimated CO2 is about 94.8 kg one way.
What should you check before leaving?
Before you leave, expect Mostly Sunny around King City and Clear near Fontana.
Stop Ideas Near Greenfield
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 Greenfield.
Bakersfield
Wasco station
Tehachapi, California
Mojave, California
Flight Path Map
This map shows the direct air route between King City and Fontana. Straight-line distance: 254.81 mi (410.07 km).
#1 King City
City in California, named after its founder, Charles King
| Population | 14,077 |
| Coordinates | 36.2127400, -121.1260300 |
| Altitude | 102 |
| 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: 487 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 10h 04m |
| 40 mph (64.37 km/h) | 07h 33m |
| 50 mph (80.47 km/h) | 06h 02m |
| 60 mph (96.56 km/h) | 05h 02m |
| 70 mph (112.65 km/h) | 04h 19m |
| 80 mph (129 km/h) | 03h 46m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $5.77 | $61.56 | $123.11 |
| Mid-grade | $6.07 | $64.72 | $129.45 |
| Premium | $6.24 | $66.61 | $133.23 |
| Diesel | $7.57 | $80.74 | $161.48 |
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.