Spanning 483.1 miles through the heart of California, this trek from Fontana to Windsor typically takes about 9 hours and 2 minutes of pure driving time. Because of the technical, turn-heavy nature of this route, I strongly recommend splitting the journey over 2 days to keep your stress levels low. You will navigate using Sierra Avenue, CA 210 West, and the Foothill Freeway, covering a significant distance within the Pacific Coast region. Budget approximately $112 for fuel to make the trip happen. While it is technically possible to push through in one go, planning for 2 stops will make the experience much more manageable for the driver.
Trip Pace
Best split across 2 days
Treat the return leg as its own travel day rather than an afterthought.
Break Rhythm
2 planned breaks
Plan on a short reset every 3 to 4 hours to stay fresh behind the wheel.
Midpoint
241.5 miles from Fontana, CA
A natural place for your longest stop of the day
, about 4h 30m into the drive
.
Main Roads
Road
Distance
Duration
Westside Freeway
225.6 mi
4h 1m
Foothill Freeway
67.2 mi
1h 17m
Redwood Highway
46.4 mi
54m
I 5 Truck
37.1 mi
42m
Arthur H. Breed Junior Freeway
29.6 mi
34m
Golden State Freeway
22.3 mi
25m
William Elton Brown Freeway
17 mi
18m
MacArthur Freeway
16.7 mi
19m
Longest stretch:
Westside Freeway
— 225.6 mi, about 4h 1m
Turn-by-Turn Driving Directions
Step-by-step road directions between Fontana, CA and Windsor, CA.
1
Start on Merrill Avenue
205 ft·6 sec·Merrill Avenue
2
Turn right onto Sierra Avenue
3.0 mi·4 min·Sierra Avenue
Use the left / straight lanes.
3
Take the ramp
0.3 mi·45 sec
Toward CA 210 WestUse the straight / slight right lanes.
4
Merge onto CA 210
15 mi·17 min·Foothill Freeway
Use the straight / slight right lanes.
5
Keep slight right at fork onto CA 210
1.2 mi·1 min·Foothill Freeway
Use the straight / slight right lanes.
6
Keep slight right at fork onto CA 210
2.4 mi·2 min·Foothill Freeway
Use the straight / slight right lanes.
7
Keep slight right at fork onto CA 210
1.4 mi·1 min·Foothill Freeway
Use the straight / slight right lanes.
8
Keep slight right at fork onto CA 210
1.8 mi·2 min·Foothill Freeway
Use the straight / slight right lanes.
9
Keep slight right at fork onto CA 210
20 mi·23 min·Foothill Freeway
Use the straight / slight right lanes.
10
Keep slight right at fork onto I 210
26 mi·29 min·Foothill Freeway
Exit 26AToward I 210 West: SacramentoUse the straight / slight right lanes.
11
Keep slight right at fork
0.1 mi·9 sec
Use the slight right lane.
12
Merge onto I 5 Truck
1.0 mi·1 min·I 5 Truck
Exit 161A
13
Keep slight left at fork onto I 5 Truck
36 mi·41 min·I 5 Truck
Use the straight / slight right lanes.
14
Keep slight left at fork onto I 5
22 mi·25 min·Golden State Freeway
Use the straight / slight right lanes.
15
Keep slight right at fork onto I 5
226 mi·4 hr 1 min·Westside Freeway
Toward I 5 NorthUse the straight / slight right lanes.
16
Keep slight left at fork onto I 580
16 mi·17 min·William Elton Brown Freeway
Toward I 580 West: Tracy, San Francisco
17
Keep slight right at fork onto I 580 Bypass
1.1 mi·1 min·William Elton Brown Freeway
18
Merge onto I 580
18 mi·20 min·Arthur H. Breed Junior Freeway
Use the straight / slight right lanes.
19
Keep slight right at fork onto I 580
12 mi·13 min·Arthur H. Breed Junior Freeway
Use the straight / slight right lanes.
20
Keep slight right at fork onto I 580
8.3 mi·9 min·MacArthur Freeway
Toward I 580: Oakland, San FranciscoUse the slight left / slight right lanes.
21
Keep slight left at fork onto I 580
8.3 mi·9 min·MacArthur Freeway
Use the straight / slight right lanes.
22
Continue on I 80; I 580
3.3 mi·4 min·Eastshore Freeway
Use the straight / slight right lanes.
23
Keep slight right at fork onto I 580
13 mi·17 min·John T. Knox Freeway
Exit 13BToward I 580 West: Point Richmond, San RafaelUse the straight / slight right lanes.
24
Keep slight left at fork
0.7 mi·54 sec
Exit 1AToward US 101 North: San Rafeal
25
Merge onto US 101
46 mi·54 min·Redwood Highway
Use the straight / slight right lanes.
26
Take the exit
0.2 mi·29 sec
Exit 498Toward Old Redwood Highway, Central WindsorUse the slight right lane.
27
Turn left onto Old Redwood Highway
0.2 mi·34 sec·Old Redwood Highway
Use the left / straight / right lanes.
28
Continue on Windsor River Road
0.3 mi·33 sec·Windsor River Road
29
Enter roundabout onto Windsor River Road
292 ft·5 sec·Windsor River Road
30
Continue on Windsor River Road
89 ft·1 sec·Windsor River Road
31
Arrive at destination
Windsor River Road
Trip Plan
Given the 9-hour duration and the technical nature of the road, prioritize an early morning departure to maximize daylight and avoid peak traffic congestion. Since the route requires two planned stops, use these breaks to stretch and refocus, as the constant turns can be more fatiguing than highway driving. Keep your $112 fuel budget in mind, and consider fueling up before you hit the more isolated local segments to avoid any unnecessary anxiety. My best advice for this specific route is to treat the trip as a multi-day excursion rather than a race; by splitting the 483.1 miles into two days, you can navigate the turn-heavy sections with significantly more energy and caution.
Morning Departure
Start early — leave by 6-7 AM to arrive at a reasonable hour.
Evening Departure
This is a long drive — plan for a morning departure or consider splitting it into two days.
This drive is better paced as a 2-day trip.
Plan roughly 2 meaningful breaks for fuel, food, and rest.
The halfway point lands around 241.5 miles from Fontana, CA, or about 4h 30m into the drive.
The longest continuous stretch on this route runs about 225.6 miles.
Consider an overnight stop or starting very early.
Departure
Before you leave
Start with fuel, water, and navigation already sorted so the first hour feels easy.
First stop
Around 106 miles or 2h 4m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 241.5 miles or 4h 30m in
This is the best place for your longest stop, a real meal, and a full fuel check.
Overnight split
Day 1 wrap after about 241.5 miles or 4h 30m
Stop before fatigue turns the last few hours into a grind. You want day two to start fresh, not just resumed.
Final approach
Final hour starts around 7h 50m
Traffic, exits, and arrival timing usually matter more near Windsor, CA than in the middle of the route.
Before You Leave
+
Open the route before leaving Fontana, CA so your first major turns are already loaded.
+
Leave with enough water and a charging cable within reach, not packed away.
+
Check your fuel range against the first long segment, especially if you are starting outside city service areas.
+
Pick one backup stop option before the midpoint in case traffic changes your pacing.
+
Treat this as a 2-day road trip and book the overnight stop before the busiest arrival window.
Day 1
Settle into the route from Fontana, CA
Aim for roughly 242 miles and 4.5 hours of wheel time on this day.
Day 2
Finish the approach into Windsor, CA
Aim for roughly 242 miles and 4.5 hours of wheel time on this day.
Your first comfortable stop window is around 106 miles from Fontana, CA.
This route usually feels better as a 2-day drive than as one long push.
Plan about 2 real breaks rather than only quick fuel stops.
The longest stretch is on Westside Freeway for about 225.6 miles.
Where to Stop
Rest stops, refuel points, and overnight suggestions along this route.
Place data sourced from public business listings. Hours and availability may vary.
Heads-up: tricky spots
5 of 26
5 decision points cluster between mile 45 and 482.2 — GPS handles the exact turns, but know they're coming. Your lane choice matters more than the turn itself.
8
45 mi into trip|~53m in|I 210 / Foothill Freeway
Keep slight right at fork onto I 210 / Foothill Freeway toward I 210 West: Sacramento
Highway fork - watch signs carefully. Lane positioning matters here
Use the straight / slight right lanes.
Exit 26A
Toward I 210 West: Sacramento
7
130.1 mi into trip|~2h 31m in|I 5 / Westside Freeway
Keep slight right at fork onto I 5 / Westside Freeway toward I 5 North
Highway fork - watch signs carefully. Lane positioning matters here
Use the straight / slight right lanes.
Toward I 5 North
8
402.3 mi into trip|~7h 25m in|I 580 / MacArthur Freeway
Keep slight right at fork onto I 580 / MacArthur Freeway toward I 580: Oakland, San Francisco
Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one
Use the slight left / slight right lanes.
Toward I 580: Oakland, San Francisco
9
422.3 mi into trip|~7h 49m in|I 580 / John T. Knox Freeway
Keep slight right at fork onto I 580 / John T. Knox Freeway toward I 580 West: Point Richmond, San Rafael
Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one
Use the straight / slight right lanes.
Exit 13B
Toward I 580 West: Point Richmond, San Rafael
8
482.2 mi into trip|~9h 1m in
Take the exit toward Old Redwood Highway, Central Windsor
Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one
Use the slight right lane.
Exit 498
Toward Old Redwood Highway, Central Windsor
Fuel & Cost
Regular Gas
$111.04 one way
$222.07 round trip
$5.84/gal25.4 MPG avg169 kg CO2
Fuel Type
$/gal
One Way
Round Trip
midgrade
$6.02
$114.42
$228.84
premium
$6.18
$117.48
$234.97
diesel
$5.61
$106.66
$213.32
No toll roads detected on this route.
Estimated Trip Cost (one way, 1 person)
Fuel
$111
Hotel (1n)
$80–$140
Meals
$50–$100
Total
$241–$351
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 169 kg one way.
Prices: EIA weekly data, 2026-04-13.
Driving Electric?
About $51 in charging
· 1 stop
· 66% less CO2
Vehicle Type
kWh
Stops
DC Fast
Home Charge
Average EV
144.9
1
$50.73
$23.19
Efficient EV
120.8
1
$42.27
$19.32
EV Truck/SUV
193.2
2
$67.63
$30.92
Gas CO2
169 kg
EV CO2
57 kg (66% less)
Plan for 1 charging stop. A 30-minute DC fast charge mid-route should be enough to complete the trip comfortably.
DC fast charging avg $0.35/kWh. Home charging avg $0.16/kWh. US grid CO2: 0.39 kg/kWh.
Travel Intel
Current conditions at both ends of the drive.
Forecast as of Apr 18, 2026
Origin
Fontana, CA
Night
in Fontana on Saturday
Local time
9:34 PM
PDT
Current temp
52°F
Clear
N 10 to 15 mph0% chanceLive forecast
Freeze Warning
Freeze Warning issued April 17 at 7:10PM PDT until April 18 at 8:00AM PDT by NWS Eureka CA
Destination
Windsor, CA
Night
in Windsor on Saturday
Local time
9:34 PM
PDT
Current temp
--
Unavailable
Seasonal Notes
Summer travel usually means heavier construction, hotter rest stops, and busier weekend traffic around major cities.
Winter travel shortens daylight, so a route that looks manageable on paper can feel much longer after dark.
Holiday weekends tend to make both departure and arrival windows slower than the raw route time suggests.
For long drives, weather on day two can matter just as much as conditions at departure, so check the whole travel window rather than only the first day.
Time zone
Same local time
Origin and destination are on the same clock, so arrival timing is easier to judge at a glance.
Road read
9h 2m on the road
This is long enough that the arrival forecast matters almost as much as departure conditions. Recheck both ends before you roll.
Weather data from the National Weather Service. Conditions may change; check closer to your travel date.
National Parks Near This Route
Worth a detour if your schedule allows.
Muir Woods National Monument
National Monument
Walk among old growth coast redwoods, cooling their roots in the fresh water of Redwood Creek and lifting their crowns to reach the sun and fog. Federally protected as a National Monument since 1908,...
7 mi from route
~17 min detour
$15
near mile 433.1
Caution: Auto-Theft Warning - Only Bring What You Need to the Park
Rosie the Riveter WWII Home Front National Historical Park
National Historical Park
Celebrate and honor the contributions and sacrifices of American civilians on the WWII home front. Discover how diverse communities lived, worked, and interacted. Many faces, many stories, many truths...
7 mi from route
~16 min detour
Free
near mile 433.1
Experience a park so rich it supports 19 distinct ecosystems with over 2,000 plant and animal species. Go for a hike, enjoy a vista, have a picnic or learn about the centuries of overlapping history f...
9 mi from route
~22 min detour
Free
near mile 433.1
Established in 1988, San Francisco Maritime National Historical Park celebrates America’s maritime heritage on the Pacific Coast. Our 50-acre park has grown around Aquatic Park Cove, a protected area...
9 mi from route
~22 min detour
Free
near mile 416.4
From its thunderous ocean breakers crashing against rocky headlands and expansive sand beaches to its open grasslands, brushy hillsides, and forested ridges, Point Reyes offers visitors over 1500 spec...
18 mi from route
~46 min detour
Free
near mile 449.8
On July 17, 1944, a massive explosion jolted the San Francisco East Bay area, shattering windows and lighting up the night sky. At Port Chicago Naval Magazine, 320 men were killed instantly when two s...
20 mi from route
~51 min detour
Free
near mile 416.4
Park data from the National Park Service API. Alerts update every 2 hours.
More Details
What kind of drive is this?
Expect a demanding experience behind the wheel, as this is a turn-heavy local drive rather than a monotonous highway cruise. With a 0% highway share, you will be navigating local roads that require your full attention and frequent adjustments. The path lacks long, uninterrupted stretches, meaning you will be constantly transitioning through different environments as you head north. This isn't the type of drive where you can switch on cruise control and zone out; instead, it demands engagement with the road's curves and local traffic patterns. Prepare for a more hands-on, technical drive than what you might encounter on a standard interstate corridor.
89% highway — fuel and pacing are the main things to plan.
31 navigation steps total — most of the decisions cluster near the start and finish.
Longest single stretch: 225.6 mi on Westside Freeway.
How Hard Is This Drive?
9/10
This is a straightforward highway drive that stays mostly on Westside Freeway and Foothill Freeway. This route has several spots where lane changes, forks, or exits need your full attention. The trickiest moment comes around 45 miles in near I 210 / Foothill Freeway.
Driving Effort9/10
High effort - long or complex enough to need steady focus all day
Balances navigation complexity with total wheel time.
This is a demanding drive. With 26 significant decision points across 483.1 miles, you will need to stay alert - especially through interchange areas and urban stretches. Consider splitting it into segments if you are not comfortable with fast highway navigation.
Where does it get tricky?
The main spots that need attention: at 45 miles (I 210 / Foothill Freeway): Highway fork - watch signs carefully. Lane positioning matters here; at 130.1 miles (I 5 / Westside Freeway): Highway fork - watch signs carefully. Lane positioning matters here; at 402.3 miles (I 580 / MacArthur Freeway): Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one.
Towns Mentioned on Route Signs
Based on OSRM destination-sign hints, not a full list of every settlement the road passes.
Between Fontana, CA and Windsor, CA, road signs point toward San Francisco and San Rafael.
Windsor is a town of 27,000 people (2019) in Sonoma County in the Bay Area of California, 9 miles north of Santa Rosa and 63 miles north of San Francisco. It may not be on the main tourist trail through California's Wine Country, but it will appeal to people looking for small, family-owned businesses, an eclectic mix of shops, and summertime entertainment.
The longest stretch is about 225.6 miles on Westside Freeway. The full list of main roads is in the Roads section above.
Yes — a 2-day pace is more comfortable than one long haul. A sensible stopping point is after roughly 242 miles on day one.
We did not find dedicated rest areas on this route. For a drive this long, plan bathroom and stretch breaks around gas stations, fast-food stops, or small-town downtowns — check the Nearby Places section for options.
It helps. This route has a higher-than-average number of complex decision points, which get harder in the dark. If the last hour of the trip is on surface roads or mountain grades, aim to arrive at Windsor, CA before sunset when you can. Check the Trip Plan for departure windows that land you in daylight.
Only with planning. This is a long drive for kids — consider splitting it into two days rather than pushing through. Plan at least 2 meaningful breaks. Dedicated rest areas are limited, so plan gas or food stops as your bathroom breaks.
The main spots that need attention: at 45 miles (I 210 / Foothill Freeway): Highway fork - watch signs carefully. Lane positioning matters here; at 130.1 miles (I 5 / Westside Freeway): Highway fork - watch signs carefully. Lane positioning matters here; at 402.3 miles (I 580 / MacArthur Freeway): Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one.
Yes — Muir Woods National Monument, Rosie the Riveter WWII Home Front National Historical Park and Golden Gate National Recreation Area (6 total within detour distance). See the National Parks section for detour distances and tips on detours.
Not recommended in a single day. At 9.0 hours each way, a round trip means 18.1 hours of driving — that is an unsafe level of fatigue for most drivers. Plan at least one night at Windsor, CA before the return drive.
