How far is Santa Rosa, CA from Fontana, CA?
The driving distance from Santa Rosa, CA to Fontana, CA is about 473.2 miles (761.6 km), with a travel time of about 08h 51m by car.
- The straight-line flight distance is about 420.3 miles (676.4 km).
- For a round trip, plan for roughly 17h 42m 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 08h 51m.
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.
Small city in Fresno County, California
Route Weather Snapshot
Check the forecast at both ends before you head out.
Sunny
Driving Route Map
The map below follows the saved road route between Santa Rosa and Fontana.
Turn-by-Turn Driving Directions
Step-by-step road directions between Santa Rosa and Fontana.
-
1
Start on 4th Street
136 m · 19 sec · 4th Street
-
2
Turn left onto B Street
100 m · 19 sec · B Street
-
3
Turn right onto 3rd Street
1267 ft · 41 sec · 3rd Street
-
4
Take the ramp left toward CA 12, US 101 South
1050 ft · 28 sec
-
5
Keep slight left to continue on US 101 South: San Francisco
748 ft · 18 sec
-
6
Merge slight left onto Redwood Highway
36.9 mi · 43 min · Redwood Highway
-
7
Keep slight right to continue on John T. Knox Freeway
13.6 mi · 17 min · John T. Knox Freeway
-
8
Merge slight left onto Eastshore Freeway
3.8 mi · 5 min · Eastshore Freeway
-
9
Keep slight left to continue on Interstate Highway 80
1321 ft · 21 sec · Interstate Highway 80
-
10
Keep slight left to continue on MacArthur Freeway
16.4 mi · 19 min · MacArthur Freeway
-
11
Merge slight left onto Arthur H. Breed Junior Freeway
11.5 mi · 13 min · Arthur H. Breed Junior Freeway
-
12
Keep slight right to continue on Arthur H. Breed Junior Freeway
17.8 mi · 21 min · Arthur H. Breed Junior Freeway
-
13
Keep slight right to continue on William Elton Brown Freeway
11.1 mi · 12 min · William Elton Brown Freeway
-
14
Keep slight left to continue on William Elton Brown Freeway
5.9 mi · 6 min · William Elton Brown Freeway
-
15
Merge slight left onto Westside Freeway
224.4 mi · 4 hr · Westside Freeway
-
16
Keep slight right
58.4 mi · 1 hr 7 min
-
17
Keep slight left to continue on Golden State Freeway
2 mi · 2 min · Golden State Freeway
-
18
Take the exit slight right toward I 210 East: Pasadena
1347 ft · 18 sec
-
19
Continue on Foothill Freeway
24.4 mi · 28 min · Foothill Freeway
-
20
Keep slight right to continue on Foothill Freeway
19.1 mi · 22 min · Foothill Freeway
-
21
Keep slight right to continue on Foothill Freeway
2.9 mi · 3 min · Foothill Freeway
-
22
Keep slight right to continue on Foothill Freeway
1.4 mi · 2 min · Foothill Freeway
-
23
Keep slight right to continue on Foothill Freeway
1.2 mi · 1 min · Foothill Freeway
-
24
Keep slight right to continue on Foothill Freeway
1.8 mi · 2 min · Foothill Freeway
-
25
Keep slight right to continue on Foothill Freeway
16.1 mi · 19 min · Foothill Freeway
-
26
Take the exit slight right toward Sierra Avenue
1796 ft · 46 sec
-
27
Turn right onto Sierra Avenue
3 mi · 5 min · Sierra Avenue
-
28
Turn left onto Merrill Avenue
63 m · 4 sec · Merrill Avenue
-
29
Arrive at your destination
0 m · 1 sec · Merrill Avenue
Car Route Details
A richer read on the saved driving route between Santa Rosa 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.
Sunny leaving Santa Rosa and Sunny near Fontana.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Santa Rosa to Fontana?
The road trip is about 473.2 miles (761.6 km) and usually takes 08h 51m 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?
Huron is a useful midpoint, sitting about 236.6 miles from Santa Rosa and 236.6 miles from Fontana.
How much longer is the road route than the straight-line distance?
The direct path is about 420.3 miles (676.4 km), while the road route adds roughly 52.9 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 $96.34 one way or $192.68 round trip. Estimated CO2 is about 148.4 kg one way.
What should you check before leaving?
Before you leave, expect Sunny around Santa Rosa and Sunny near Fontana.
Stop Ideas Near Huron
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 Huron.
Lemoore (Naval Air Station), California
Kettleman City, California
Lemoore, California
Hanford station
Flight Path Map
This map shows the direct air route between Santa Rosa and Fontana. Straight-line distance: 420.27 mi (676.36 km).
#1 Santa Rosa
The fifth most populous city in California.
| Population | 174,613 |
| Coordinates | 38.4404700, -122.7144300 |
| Altitude | 50 |
| 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: 762 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 15h 46m |
| 40 mph (64.37 km/h) | 11h 49m |
| 50 mph (80.47 km/h) | 09h 27m |
| 60 mph (96.56 km/h) | 07h 53m |
| 70 mph (112.65 km/h) | 06h 45m |
| 80 mph (129 km/h) | 05h 54m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $5.77 | $96.34 | $192.68 |
| Mid-grade | $6.07 | $101.30 | $202.60 |
| Premium | $6.24 | $104.26 | $208.52 |
| Diesel | $7.57 | $126.37 | $252.74 |
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 18, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.