Embarking on this 280.8-mile journey from Mendota to Fontana will take approximately 5 hours and 20 minutes, making it a very manageable one-day road trip. The route primarily utilizes the Westside Freeway and Foothill Freeway, with a small portion on I 5 Truck, maintaining a 91% highway share. With an estimated fuel cost of $65, this drive offers a straightforward, highway-focused experience across California's Pacific Coast region. It’s a direct path, ideal for getting from point A to point B efficiently.
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
140.4 miles from Mendota, CA
A natural place for your longest stop of the day
, about 2h 38m into the drive
.
Main Roads
Road
Distance
Duration
Westside Freeway
127.4 mi
2h 16m
Foothill Freeway
67 mi
1h 17m
I 5 Truck
58.4 mi
1h 6m
Derrick Avenue
21.9 mi
29m
Sierra Avenue
3 mi
4m
Golden State Freeway
2 mi
2m
7th Street
0.3 mi
1m
Merrill Avenue
<0.1 mi
<1m
Longest stretch:
Westside Freeway
— 127.4 mi, about 2h 16m
Turn-by-Turn Driving Directions
Step-by-step road directions between Mendota, CA and Fontana, CA.
1
Start on Quince Street
124 ft·10 sec·Quince Street
2
Turn left onto 7th Street
0.3 mi·1 min·7th Street
3
At end of road, turn left onto Derrick Avenue
22 mi·29 min·Derrick Avenue
4
Take the ramp
0.2 mi·27 sec
5
Merge onto I 5; CA 33
127 mi·2 hr 16 min·Westside Freeway
Use the straight / slight right lanes.
6
Keep slight right at fork onto I 5 Truck
58 mi·1 hr 6 min·I 5 Truck
Use the straight / slight right lanes.
7
Keep slight left at fork onto I 5
2.0 mi·2 min·Golden State Freeway
Use the straight / slight right lanes.
8
Take the exit
0.3 mi·17 sec
Exit 161AToward I 210 East: PasadenaUse the slight right lane.
9
Continue on I 210
24 mi·28 min·Foothill Freeway
Use the straight / slight right lanes.
10
Keep slight right at fork onto I 210
19 mi·22 min·Foothill Freeway
Toward CA 134 West, I 210 East: San Bernardino, VenturaUse the slight right lane.
11
Keep slight right at fork onto I 210
2.9 mi·3 min·Foothill Freeway
Use the straight / slight right lanes.
12
Keep slight right at fork onto CA 210
1.4 mi·1 min·Foothill Freeway
Use the straight / slight right lanes.
13
Keep slight right at fork onto CA 210
1.2 mi·1 min·Foothill Freeway
Use the straight / slight right lanes.
14
Keep slight right at fork onto CA 210
1.8 mi·2 min·Foothill Freeway
Use the straight / slight right lanes.
15
Keep slight right at fork onto CA 210
16 mi·18 min·Foothill Freeway
Use the straight / slight right lanes.
16
Take the exit
0.3 mi·46 sec
Exit 67Toward Sierra AvenueUse the straight / slight right lanes.
17
Turn right onto Sierra Avenue
3.0 mi·4 min·Sierra Avenue
Use the left / right lanes.
18
Turn left onto Merrill Avenue
205 ft·4 sec·Merrill Avenue
Use the left lane.
19
Arrive at destination
Merrill Avenue
Trip Plan
Given the 5-hour and 20-minute duration, this trip is best tackled in a single day. Consider an early morning departure to maximize daylight and potentially avoid heavier traffic. With only one recommended stop and a fuel cost around $65, planning is straightforward. The longest uninterrupted stretch is over 127 miles on the Westside Freeway, so ensure you're fueled up before heading into that section. Keep an eye on road conditions, as is standard for any extended highway drive in California.
Morning Departure
An early start around 7-8 AM gets you there with plenty of daylight left.
Evening Departure
A late afternoon start means arriving after dark. Morning is better.
You can normally do this drive in one day.
Plan roughly 1 meaningful break for fuel, food, and rest.
The halfway point lands around 140.4 miles from Mendota, CA, or about 2h 38m into the drive.
The longest continuous stretch on this route runs about 127.4 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 62 miles or 1h 14m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 140.4 miles or 2h 38m in
This is the best place for your longest stop, a real meal, and a full fuel check.
Final approach
Final hour starts around 4h 20m
Traffic, exits, and arrival timing usually matter more near Fontana, CA than in the middle of the route.
Before You Leave
+
Open the route before leaving Mendota, 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 Mendota, CA
This is one driving day of about 280.8 miles and 5h 20m.
Your first comfortable stop window is around 62 miles from Mendota, 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 127.4 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 16
5 decision points cluster between mile 149.9 and 277.4 — GPS handles the exact turns, but know they're coming. Your lane choice matters more than the turn itself.
6
149.9 mi into trip|~2h 48m in|I 5 Truck
Keep slight right at fork onto I 5 Truck
Highway fork - watch signs carefully. Lane positioning matters here
Use the straight / slight right lanes.
6
208.2 mi into trip|~3h 55m in|I 5 / Golden State Freeway
Keep slight left at fork onto I 5 / Golden State Freeway
Highway fork - watch signs carefully. Lane positioning matters here
Use the straight / slight right lanes.
7
210.2 mi into trip|~3h 57m in
Take the exit toward I 210 East: Pasadena
Exit ramp - move to the correct lane early. Lane positioning matters here
Use the slight right lane.
Exit 161A
Toward I 210 East: Pasadena
8
234.9 mi into trip|~4h 26m in|I 210 / Foothill Freeway
Keep slight right at fork onto I 210 / Foothill Freeway toward CA 134 West, I 210 East: San Bernardino, Ventura
Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one
Use the slight right lane.
Toward CA 134 West, I 210 East: San Bernardino,...
7
277.4 mi into trip|~5h 15m in
Take the exit toward Sierra Avenue
Exit ramp - move to the correct lane early. Lane positioning matters here
Use the straight / slight right lanes.
Exit 67
Toward Sierra Avenue
Fuel & Cost
Regular Gas
$64.54 one way
$129.08 round trip
$5.84/gal25.4 MPG avg98 kg CO2
Fuel Type
$/gal
One Way
Round Trip
midgrade
$6.02
$66.51
$133.02
premium
$6.18
$68.29
$136.57
diesel
$5.61
$62.00
$123.99
No toll roads detected on this route.
Estimated Trip Cost (one way, 1 person)
Fuel
$65
Meals
$25–$50
Total
$90–$115
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 98.2 kg one way.
Prices: EIA weekly data, 2026-04-13.
Driving Electric?
About $29 in charging
· 1 stop
· 66% less CO2
Vehicle Type
kWh
Stops
DC Fast
Home Charge
Average EV
84.2
1
$29.48
$13.48
Efficient EV
70.2
0
$24.57
$11.23
EV Truck/SUV
112.3
1
$39.31
$17.97
Gas CO2
98 kg
EV CO2
33 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 20, 2026
Origin
Mendota, CA
Late night
in Mendota on Tuesday
Local time
1:46 AM
PDT
Current temp
50°F
Unavailable
Live forecast
Destination
Fontana, CA
Late night
in Fontana on Tuesday
Local time
1:46 AM
PDT
Current temp
69°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
19 degrees warmer at arrival
A meaningful temperature swing is a good cue to rethink layers, water, and how soon you want to arrive.
Road read
5h 20m on the road
An early start around 7-8 AM gets you there with plenty of daylight left.
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...
23 mi from route
~58 min detour
Free
near mile 203.3
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...
28 mi from route
~69 min detour
Free
near mile 145.2
Park data from the National Park Service API. Alerts update every 2 hours.
More Details
What kind of drive is this?
This is predominantly a highway-focused drive, with 91% of the route on major freeways. You'll experience a significant 127.4-mile stretch on the Westside Freeway, which sets the tone for much of the journey. While largely uninterrupted highway driving, expect the character to remain consistent as you transition between the Westside Freeway, Foothill Freeway, and I 5 Truck. The personality of this route is one of steady progress and efficient travel.
91% highway — fuel and pacing are the main things to plan.
19 navigation steps total — most of the decisions cluster near the start and finish.
Longest single stretch: 127.4 mi on Westside Freeway.
How Hard Is This Drive?
7/10
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 149.9 miles in near I 5 Truck.
Driving Effort7/10
Demanding - plan breaks and stay ahead of the key maneuvers
Balances navigation complexity with total wheel time.
This is a demanding drive. With 16 significant decision points across 280.8 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 149.9 miles (I 5 Truck): Highway fork - watch signs carefully. Lane positioning matters here; at 208.2 miles (I 5 / Golden State Freeway): Highway fork - watch signs carefully. Lane positioning matters here; at 210.2 miles: Exit ramp - move to the correct lane early. Lane positioning matters here.
Towns Mentioned on Route Signs
Based on OSRM destination-sign hints, not a full list of every settlement the road passes.
On the drive from Mendota, CA to Fontana, CA, road signs begin pointing toward Ventura along the way.
Doable as a same-day drive at 5h 20m. Total distance: 280.8 miles.
Family Friendly
Moderate complexity with 1 natural rest stops along the way.
Solo Traveler
5h 20m drive, comfortable solo distance.
First-Time Driver
Mostly highway driving (91%). Some complex stretches to watch for.
Frequently Asked Questions
The longest stretch is about 127.4 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 Fontana, 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: at 149.9 miles (I 5 Truck): Highway fork - watch signs carefully. Lane positioning matters here; at 208.2 miles (I 5 / Golden State Freeway): Highway fork - watch signs carefully. Lane positioning matters here; at 210.2 miles: Exit ramp - move to the correct lane early. 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 5.3 hours each way, a round trip means 10.7 hours of driving — that is an unsafe level of fatigue for most drivers. Plan at least one night at Fontana, CA before the return drive.
