How far is Foster City, CA from Fontana, CA?
The driving distance from Foster City, CA to Fontana, CA is about 416.5 miles (670.3 km), with a travel time of about 07h 45m by car.
- The straight-line flight distance is about 361.5 miles (581.8 km).
- For a round trip, plan for roughly 15h 31m 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 45m.
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 Kings County, California
Route Weather Snapshot
Check the forecast at both ends before you head out.
Partly Sunny
Driving Route Map
The map below follows the saved road route between Foster City and Fontana.
Turn-by-Turn Driving Directions
Step-by-step road directions between Foster City and Fontana.
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1
Start on Shell Boulevard
1321 ft · 33 sec · Shell Boulevard
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2
Turn right onto Metro Center Boulevard
760 ft · 23 sec · Metro Center Boulevard
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3
Turn left onto CA 92 East: San Mateo Bridge, Hayward
1419 ft · 19 sec
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4
Merge slight left onto J Arthur Younger Freeway
11.9 mi · 14 min · J Arthur Younger Freeway
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5
Continue on West Jackson Street
1.5 mi · 3 min · West Jackson Street
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6
Continue on Foothill Boulevard
2503 ft · 1 min · Foothill Boulevard
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7
Turn right onto A Street
1.2 km · 1 min · A Street
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8
Continue on Redwood Road
2669 ft · 59 sec · Redwood Road
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9
Take the ramp right toward I 580 East: Stockton
1451 ft · 37 sec
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10
Merge slight left onto Arthur H. Breed Junior Freeway
10.4 mi · 12 min · Arthur H. Breed Junior Freeway
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11
Keep slight right to continue on Arthur H. Breed Junior Freeway
17.8 mi · 21 min · Arthur H. Breed Junior Freeway
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12
Keep slight right to continue on William Elton Brown Freeway
11.1 mi · 12 min · William Elton Brown Freeway
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13
Keep slight left to continue on William Elton Brown Freeway
5.9 mi · 6 min · William Elton Brown Freeway
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14
Merge slight left onto Westside Freeway
224.4 mi · 4 hr · Westside Freeway
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15
Keep slight right
58.4 mi · 1 hr 7 min
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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
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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
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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 Foster 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
Merge slight left onto Westside Freeway
224 mi · 04h 00m
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 Sunny leaving Foster 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 Foster City to Fontana?
The road trip is about 416.5 miles (670.3 km) and usually takes 07h 45m 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?
Kettleman City is a useful midpoint, sitting about 208.2 miles from Foster City and 208.2 miles from Fontana.
How much longer is the road route than the straight-line distance?
The direct path is about 361.5 miles (581.8 km), while the road route adds roughly 55 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 $84.80 one way or $169.61 round trip. Estimated CO2 is about 130.6 kg one way.
What should you check before leaving?
Before you leave, expect Partly Sunny around Foster City and Clear near Fontana.
Stop Ideas Near Kettleman City
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 Kettleman City.
Kettleman City, California
Lemoore, California
Corcoran station
Lemoore (Naval Air Station), California
Flight Path Map
This map shows the direct air route between Foster City and Fontana. Straight-line distance: 361.5 mi (581.78 km).
#1 Foster City
City in San Mateo County, California, United States
| Population | 33,901 |
| Coordinates | 37.5585500, -122.2710800 |
| Altitude | 2 |
| 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: 670 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 13h 52m |
| 40 mph (64.37 km/h) | 10h 24m |
| 50 mph (80.47 km/h) | 08h 19m |
| 60 mph (96.56 km/h) | 06h 56m |
| 70 mph (112.65 km/h) | 05h 56m |
| 80 mph (129 km/h) | 05h 11m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $5.77 | $84.80 | $169.61 |
| Mid-grade | $6.07 | $89.17 | $178.34 |
| Premium | $6.24 | $91.77 | $183.54 |
| Diesel | $7.57 | $111.23 | $222.47 |
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 15, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.