Traveling from Alamo to Fontana covers 404.4 miles, a journey that typically takes about 7 hours and 30 minutes of driving time. Because this route is heavily focused on highway travel, you can realistically complete the trip in a single day if you stay focused. Expect to budget roughly $94 for fuel, depending on your vehicle's efficiency and current gas prices. While both locations are situated within the Pacific Coast region, the drive provides a direct link between these two California hubs. Since you will spend nearly the entire duration on major interstates, it is a straightforward trip best suited for those looking to reach their destination efficiently rather than those seeking a leisurely scenic tour.
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
2 planned breaks
Plan on a short reset every 3 to 4 hours to stay fresh behind the wheel.
Midpoint
202.2 miles from Alamo, CA
A natural place for your longest stop of the day
, about 3h 41m into the drive
.
Main Roads
Road
Distance
Duration
Westside Freeway
224.4 mi
4h
Foothill Freeway
67 mi
1h 17m
I 5 Truck
58.4 mi
1h 6m
Arthur H. Breed Junior Freeway
19.2 mi
22m
William Elton Brown Freeway
17 mi
18m
Donald D Doyle Highway
11.3 mi
12m
Sierra Avenue
3 mi
4m
Golden State Freeway
2 mi
2m
Longest stretch:
Westside Freeway
— 224.4 mi, about 4h
Turn-by-Turn Driving Directions
Step-by-step road directions between Alamo, CA and Fontana, CA.
1
Start on this road
74 ft·7 sec·this road
2
Turn right onto Danville Boulevard
72 ft·3 sec·Danville Boulevard
3
Turn right onto Stone Valley Road
0.1 mi·20 sec·Stone Valley Road
4
Take the ramp
0.3 mi·32 sec
Toward I 680 South: San Jose
5
Merge onto I 680
11 mi·12 min·Donald D Doyle Highway
Use the straight / slight right lanes.
6
Take the exit
0.3 mi·33 sec
Exit 30AToward I 580 East: Livermore, StocktonUse the straight / slight right lanes.
7
Keep slight left at fork
0.7 mi·1 min
Toward I 580 East: Livermore, StocktonUse the straight / slight right lanes.
8
Keep slight left at fork
0.3 mi·38 sec
Toward I 580: StocktonUse the straight / slight right lanes.
9
Merge onto I 580
1.4 mi·1 min·Arthur H. Breed Junior Freeway
10
Keep slight right at fork onto I 580
18 mi·20 min·Arthur H. Breed Junior Freeway
Use the straight / slight right lanes.
11
Keep slight right at fork onto I 580
11 mi·11 min·William Elton Brown Freeway
12
Keep slight left at fork onto I 580
5.9 mi·6 min·William Elton Brown Freeway
13
Merge onto I 5
224 mi·4 hr·Westside Freeway
Use the straight / slight right lanes.
14
Keep slight right at fork onto I 5 Truck
58 mi·1 hr 6 min·I 5 Truck
Use the straight / slight right lanes.
15
Keep slight left at fork onto I 5
2.0 mi·2 min·Golden State Freeway
Use the straight / slight right lanes.
16
Take the exit
0.3 mi·17 sec
Exit 161AToward I 210 East: PasadenaUse the slight right lane.
17
Continue on I 210
24 mi·28 min·Foothill Freeway
Use the straight / slight right lanes.
18
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.
19
Keep slight right at fork onto I 210
2.9 mi·3 min·Foothill Freeway
Use the straight / slight right lanes.
20
Keep slight right at fork onto CA 210
1.4 mi·1 min·Foothill Freeway
Use the straight / slight right lanes.
21
Keep slight right at fork onto CA 210
1.2 mi·1 min·Foothill Freeway
Use the straight / slight right lanes.
22
Keep slight right at fork onto CA 210
1.8 mi·2 min·Foothill Freeway
Use the straight / slight right lanes.
23
Keep slight right at fork onto CA 210
16 mi·18 min·Foothill Freeway
Use the straight / slight right lanes.
24
Take the exit
0.3 mi·46 sec
Exit 67Toward Sierra AvenueUse the straight / slight right lanes.
25
Turn right onto Sierra Avenue
3.0 mi·4 min·Sierra Avenue
Use the left / right lanes.
26
Turn left onto Merrill Avenue
205 ft·4 sec·Merrill Avenue
Use the left lane.
27
Arrive at destination
Merrill Avenue
Trip Plan
To keep your 7-hour and 30-minute drive manageable, plan for at least two designated stops along the way to break up the monotony. Leaving early in the morning is your best strategy to navigate through the high-traffic corridors that define this 404.4-mile route. Since you are facing such a long stint on the road, consider coordinating your refueling stops with your rest breaks to stay within your $94 fuel budget. A helpful tip for this specific drive is to monitor the I-5 Truck route conditions before you depart, as it is a major artery for your transit. Keeping a consistent pace will ensure you reach Fontana without unnecessary fatigue.
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 2 meaningful breaks for fuel, food, and rest.
The halfway point lands around 202.2 miles from Alamo, CA, or about 3h 41m into the drive.
The longest continuous stretch on this route runs about 224.4 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 89 miles or 1h 39m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 202.2 miles or 3h 41m in
This is the best place for your longest stop, a real meal, and a full fuel check.
Final approach
Final hour starts around 6h 19m
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 Alamo, 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.
Day 1
Settle into the route from Alamo, CA
This is one driving day of about 404.4 miles and 7h 30m.
Your first comfortable stop window is around 89 miles from Alamo, CA.
This route can stay practical as a one-day drive if traffic stays reasonable.
Plan about 2 real breaks rather than only quick fuel stops.
The longest stretch is on Westside Freeway for about 224.4 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 24
5 decision points cluster between mile 11.6 and 358.5 — GPS handles the exact turns, but know they're coming. Your lane choice matters more than the turn itself.
8
11.6 mi into trip|~14m in
Take the exit toward I 580 East: Livermore, Stockton
Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one
Use the straight / slight right lanes.
Exit 30A
Toward I 580 East: Livermore, Stockton
8
11.9 mi into trip|~14m in
Keep slight left at fork toward I 580 East: Livermore, Stockton
Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one
Use the straight / slight right lanes.
Toward I 580 East: Livermore, Stockton
7
12.6 mi into trip|~16m in
Keep slight left at fork toward I 580: Stockton
Highway fork - watch signs carefully. Lane positioning matters here
Use the straight / slight right lanes.
Toward I 580: Stockton
7
333.9 mi into trip|~6h 6m 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
358.5 mi into trip|~6h 35m 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,...
Fuel & Cost
Regular Gas
$92.95 one way
$185.90 round trip
$5.84/gal25.4 MPG avg142 kg CO2
Fuel Type
$/gal
One Way
Round Trip
midgrade
$6.02
$95.78
$191.56
premium
$6.18
$98.35
$196.69
diesel
$5.61
$89.29
$178.57
No toll roads detected on this route.
Estimated Trip Cost (one way, 1 person)
Fuel
$93
Meals
$25–$50
Total
$118–$143
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 141.5 kg one way.
Prices: EIA weekly data, 2026-04-13.
Driving Electric?
About $42 in charging
· 1 stop
· 67% less CO2
Vehicle Type
kWh
Stops
DC Fast
Home Charge
Average EV
121.3
1
$42.46
$19.41
Efficient EV
101.1
1
$35.39
$16.18
EV Truck/SUV
161.8
2
$56.62
$25.88
Gas CO2
141 kg
EV CO2
47 kg (67% 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
Alamo, CA
Late night
in Alamo on Sunday
Local time
12:54 AM
PDT
Current temp
63°F
Unavailable
Live forecast
Destination
Fontana, CA
Late night
in Fontana on Sunday
Local time
12:54 AM
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
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
11 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
7h 30m 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.
Port Chicago Naval Magazine National Memorial
National Memorial
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...
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...
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...
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 334.7
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...
29 mi from route
~72 min detour
Free
near mile 278.9
Park data from the National Park Service API. Alerts update every 2 hours.
More Details
What kind of drive is this?
This trip is defined by its efficiency, with 96% of the journey taking place on highways. You will rely heavily on the Westside Freeway, the Foothill Freeway, and the I-5 Truck route to make your way south. Prepare for a significant amount of time behind the wheel on the Westside Freeway, which accounts for the longest uninterrupted stretch of 224.4 miles. Because the route is so highway-focused, the driving experience remains fairly consistent rather than shifting between technical local roads and open stretches. Expect a steady, interstate-heavy pace that allows you to cover the distance with minimal navigation hurdles.
96% highway — fuel and pacing are the main things to plan.
27 navigation steps total — most of the decisions cluster near the start and finish.
Longest single stretch: 224.4 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 11.6 miles in.
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 24 significant decision points across 404.4 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: at 11.6 miles: Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one; at 11.9 miles: Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one; at 12.6 miles: Highway fork - watch signs carefully. Lane positioning matters here.
Elevation Profile
Hilly terrain with moderate elevation changes
3,706 ft235 ft
Total Climb
4,091 ft
Total Descent
3,126 ft
Highest Point
3,706 ft
~288.9 mi in
Elevation Range
3,471 ft
Notable High Points
3,706 ft at ~288.9 miles+2,328 ft prominence
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 Alamo, CA to Fontana, CA, road signs begin pointing toward Ventura along the way.
Doable as a same-day drive at 7h 30m. Total distance: 404.4 miles.
Family Friendly
Moderate complexity with 2 natural rest stops along the way.
Solo Traveler
7h 30m drive, plan rest stops for pacing.
Frequently Asked Questions
The longest stretch is about 224.4 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 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 11.6 miles: Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one; at 11.9 miles: Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one; at 12.6 miles: Highway fork - watch signs carefully. Lane positioning matters here.
Yes — Port Chicago Naval Magazine National Memorial, Rosie the Riveter WWII Home Front National Historical Park and San Francisco Maritime National Historical Park (5 total within detour distance). See the National Parks section for detour distances and tips on detours.
Not recommended in a single day. At 7.5 hours each way, a round trip means 15.0 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.
