Spanning 346.4 miles, this journey from Fontana to Patterson takes approximately 6 hours and 25 minutes of drive time. While it is technically feasible to complete the trip in a single day, the turn-heavy nature of the route requires focused attention behind the wheel. You should budget roughly $80 for fuel to cover the distance between these two Pacific Coast locations. Because this is a concentrated one-day drive, plan for at least one dedicated stop to break up the time. Before you head out, weigh whether you prefer a direct push or a more relaxed pace, as the local road sections demand more active driving than a standard interstate cruise.
Trip Pace
Same-day drive is realistic
A same-day return is possible, but it will make for a full day on the road.
Break Rhythm
1 planned break
Plan on a short reset every 3 to 4 hours to stay fresh behind the wheel.
Midpoint
173.2 miles from Fontana, CA
A natural place for your longest stop of the day
, about 3h 17m into the drive
.
Main Roads
Road
Distance
Duration
Westside Freeway
213 mi
3h 48m
Foothill Freeway
67.2 mi
1h 17m
I 5 Truck
37.1 mi
42m
Golden State Freeway
22.3 mi
25m
Sierra Avenue
3 mi
4m
Sperry Avenue
1.9 mi
3m
West Las Palmas Avenue
1 mi
1m
Plaza
<0.1 mi
<1m
Longest stretch:
Westside Freeway
— 213 mi, about 3h 48m
Turn-by-Turn Driving Directions
Step-by-step road directions between Fontana, CA and Patterson, 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
213 mi·3 hr 48 min·Westside Freeway
Toward I 5 NorthUse the straight / slight right lanes.
16
Take the exit
0.2 mi·36 sec
Toward Diablo Grande Parkway, Sperry Avenue
17
Turn right onto J17
1.9 mi·3 min·Sperry Avenue
18
Turn left onto J17
1.0 mi·1 min·West Las Palmas Avenue
Use the left lane.
19
Enter roundabout onto J17
299 ft·5 sec·Plaza
20
Arrive at destination
J17
Trip Plan
To make the most of your 6-hour and 25-minute transit, try to hit the road early to avoid the peak local traffic that often impacts turn-heavy routes. Since you have at least one stop planned, use that time to stretch and refuel, keeping your $80 budget in mind as you navigate. Given the lack of high-speed highway miles, you will find that your average speed remains lower, making it essential to factor in extra time for potential delays. Flexibility is your biggest advantage here, so monitor your energy levels closely throughout the drive. A smart tip for this specific route is to double-check your navigation before leaving Sierra Avenue, as the local road navigation can be more complex than standard highway driving.
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.
You can normally do this drive in one day.
Plan roughly 1 meaningful break for fuel, food, and rest.
The halfway point lands around 173.2 miles from Fontana, CA, or about 3h 17m into the drive.
The longest continuous stretch on this route runs about 213 miles.
This is a comfortable same-day trip.
Departure
Before you leave
Start with fuel, water, and navigation already sorted so the first hour feels easy.
First stop
Around 76 miles or 1h 29m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 173.2 miles or 3h 17m in
This is the best place for your longest stop, a real meal, and a full fuel check.
Final approach
Final hour starts around 5h 19m
Traffic, exits, and arrival timing usually matter more near Patterson, 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.
Day 1
Settle into the route from Fontana, CA
This is one driving day of about 346.4 miles and 6h 25m.
Your first comfortable stop window is around 76 miles from Fontana, CA.
This route can stay practical as a one-day drive if traffic stays reasonable.
Plan about 1 real break rather than only quick fuel stops.
The longest stretch is on Westside Freeway for about 213 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 18
5 decision points cluster between mile 0 and 130.1 — GPS handles the exact turns, but know they're coming. Your lane choice matters more than the turn itself.
6
0 mi into trip|~0m in|Sierra Avenue
Turn right onto Sierra Avenue
Lane positioning matters here
Use the left / straight lanes.
6
18.2 mi into trip|~22m in|CA 210 / Foothill Freeway
Keep slight right at fork onto CA 210 / Foothill Freeway
Highway fork - watch signs carefully. Lane positioning matters here
Use the straight / slight right lanes.
6
19.4 mi into trip|~24m in|CA 210 / Foothill Freeway
Keep slight right at fork onto CA 210 / Foothill Freeway
Highway fork - watch signs carefully. Lane positioning matters here
Use the straight / slight right lanes.
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
Fuel & Cost
Regular Gas
$79.62 one way
$159.23 round trip
$5.84/gal25.4 MPG avg121 kg CO2
Fuel Type
$/gal
One Way
Round Trip
midgrade
$6.02
$82.04
$164.09
premium
$6.18
$84.24
$168.48
diesel
$5.61
$76.48
$152.96
No toll roads detected on this route.
Estimated Trip Cost (one way, 1 person)
Fuel
$80
Meals
$25–$50
Total
$105–$130
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 121.2 kg one way.
Prices: EIA weekly data, 2026-04-13.
Driving Electric?
About $36 in charging
· 1 stop
· 66% less CO2
Vehicle Type
kWh
Stops
DC Fast
Home Charge
Average EV
103.9
1
$36.37
$16.63
Efficient EV
86.6
0
$30.31
$13.86
EV Truck/SUV
138.6
1
$48.50
$22.17
Gas CO2
121 kg
EV CO2
41 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 16, 2026
Origin
Fontana, CA
Morning
in Fontana on Sunday
Local time
9:10 AM
PDT
Current temp
73°F
Partly Sunny
SW 10 to 15 mph0% chanceLive forecast
Wind Advisory
Wind Advisory issued April 16 at 2:19PM PDT until April 16 at 11:00PM PDT by NWS Sacramento CA
Freeze Warning
Freeze Warning issued April 16 at 12:49PM PDT until April 17 at 9:00AM PDT by NWS Eureka CA
Destination
Patterson, CA
Morning
in Patterson on Sunday
Local time
9:10 AM
PDT
Current temp
70°F
Unavailable
Live forecast
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.
Time zone
Same local time
Origin and destination are on the same clock, so arrival timing is easier to judge at a glance.
Temperature spread
3 degrees cooler at arrival
A meaningful temperature swing is a good cue to rethink layers, water, and how soon you want to arrive.
Road read
6h 25m on the road
Start early — leave by 6-7 AM to arrive at a reasonable hour.
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.
Santa Monica Mountains National Recreation Area
National Recreation Area
The Santa Monica Mountains offer easy access to surprisingly wild places. Experience the famous beaches of Malibu or explore more than 500 miles of trails. The park abounds with historical and cultura...
22 mi from route
~56 min detour
Free
near mile 71.7
Yes, we can! Widely recognized as the most important Latino leader in the United States during the twentieth century, Cesar Chavez led farm workers and supporters in the establishment of the country's...
27 mi from route
~67 min detour
Free
near mile 131.4
Park data from the National Park Service API. Alerts update every 2 hours.
More Details
What kind of drive is this?
Expect a departure that leans into a turn-heavy local feel, beginning with Sierra Avenue before transitioning onto CA 210 West and the Foothill Freeway. Unlike a monotonous interstate grind, this route keeps you engaged with its technical profile rather than high-speed highway stretches. Because the highway share is 0%, you will encounter more frequent changes in traffic flow and road geometry. The drive requires you to stay alert through winding segments that contrast significantly with open, straight-line highway travel. Prepare for a dynamic experience that keeps you focused on the road ahead rather than letting you settle into cruise control.
98% highway — fuel and pacing are the main things to plan.
20 navigation steps total — most of the decisions cluster near the start and finish.
Longest single stretch: 213 mi on Westside Freeway.
How Hard Is This Drive?
8/10
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 early in the drive near Sierra Avenue.
Driving Effort8/10
Demanding - plan breaks and stay ahead of the key maneuvers
Balances navigation complexity with total wheel time.
This is a demanding drive. With 18 significant decision points across 346.4 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: near the start (Sierra Avenue): Lane positioning matters here; at 18.2 miles (CA 210 / Foothill Freeway): Highway fork - watch signs carefully. Lane positioning matters here; at 19.4 miles (CA 210 / Foothill Freeway): Highway fork - watch signs carefully. Lane positioning matters here.
Doable as a same-day drive at 6h 25m. Total distance: 346.4 miles.
Family Friendly
Moderate complexity with 1 natural rest stops along the way.
Solo Traveler
6h 25m drive, plan rest stops for pacing.
Frequently Asked Questions
The longest stretch is about 213 miles on Westside Freeway. The full list of main roads is in the Roads section above.
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 Patterson, 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 1 meaningful breaks. Dedicated rest areas are limited, so plan gas or food stops as your bathroom breaks.
The main spots that need attention: near the start (Sierra Avenue): Lane positioning matters here; at 18.2 miles (CA 210 / Foothill Freeway): Highway fork - watch signs carefully. Lane positioning matters here; at 19.4 miles (CA 210 / Foothill Freeway): Highway fork - watch signs carefully. Lane positioning matters here.
Yes — Santa Monica Mountains National Recreation Area and César E. Chávez National Monument. See the National Parks section for detour distances and tips on detours.
Not recommended in a single day. At 6.4 hours each way, a round trip means 12.8 hours of driving — that is an unsafe level of fatigue for most drivers. Plan at least one night at Patterson, CA before the return drive.
