Traveling from Bay Point to Fontana covers 407.6 miles of California terrain, typically requiring about 7 hours and 42 minutes of time behind the wheel. Because this journey stays within the Pacific Coast region, you can realistically complete the trip in a single day if you stay focused. You should budget approximately $94 for fuel to cover the distance comfortably. Utilizing the Westside Freeway, I-5 Truck route, and the Foothill Freeway, you will spend the vast majority of your time on major corridors. While it is certainly possible to power through this drive in one go, planning for two scheduled stops will help keep you fresh for the final leg of the journey.
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
203.8 miles from Bay Point, CA
A natural place for your longest stop of the day
, about 3h 51m 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
CA 4
19.2 mi
22m
William Elton Brown Freeway
14 mi
15m
Byron Highway
5.1 mi
7m
Mountain House Parkway
3.4 mi
6m
Vasco Road
3.4 mi
4m
Longest stretch:
Westside Freeway
— 224.4 mi, about 4h
Turn-by-Turn Driving Directions
Step-by-step road directions between Bay Point, CA and Fontana, CA.
1
Start on Riverside Drive
329 ft·18 sec·Riverside Drive
2
Turn right onto Port Chicago Highway
0.2 mi·24 sec·Port Chicago Highway
3
Turn right onto Willow Pass Road
0.5 mi·57 sec·Willow Pass Road
4
Take the ramp
0.3 mi·37 sec
Toward CA 4 East: Stockton
5
Merge onto CA 4
11 mi·12 min·CA 4
Use the straight / slight right lanes.
6
Keep slight left at fork onto CA 4
8.0 mi·9 min·CA 4
Use the straight / slight right lanes.
7
Continue on Vasco Road
3.4 mi·4 min·Vasco Road
Use the left / straight / right lanes.
8
Turn left onto Camino Diablo
1.6 mi·3 min·Camino Diablo
9
Turn right onto J4
5.1 mi·7 min·Byron Highway
10
Continue on J4
1.5 mi·2 min·Byron-Bethany Road
11
Continue on J4
1.8 mi·2 min·Byron Road
12
Turn right onto Mountain House Parkway
2.7 mi·4 min·Mountain House Parkway
Use the slight left lane.
13
Continue on International Parkway
1.0 mi·1 min·International Parkway
Use the straight lane.
14
Continue on Mountain House Parkway
0.8 mi·1 min·Mountain House Parkway
Use the straight lane.
15
Take the ramp
0.2 mi·30 sec
16
Merge onto I 580
8.1 mi·8 min·William Elton Brown Freeway
17
Keep slight left at fork onto I 580
5.9 mi·6 min·William Elton Brown Freeway
18
Merge onto I 5
224 mi·4 hr·Westside Freeway
Use the straight / slight right lanes.
19
Keep slight right at fork onto I 5 Truck
58 mi·1 hr 6 min·I 5 Truck
Use the straight / slight right lanes.
20
Keep slight left at fork onto I 5
2.0 mi·2 min·Golden State Freeway
Use the straight / slight right lanes.
21
Take the exit
0.3 mi·17 sec
Exit 161AToward I 210 East: PasadenaUse the slight right lane.
22
Continue on I 210
24 mi·28 min·Foothill Freeway
Use the straight / slight right lanes.
23
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.
24
Keep slight right at fork onto I 210
2.9 mi·3 min·Foothill Freeway
Use the straight / slight right lanes.
25
Keep slight right at fork onto CA 210
1.4 mi·1 min·Foothill Freeway
Use the straight / slight right lanes.
26
Keep slight right at fork onto CA 210
1.2 mi·1 min·Foothill Freeway
Use the straight / slight right lanes.
27
Keep slight right at fork onto CA 210
1.8 mi·2 min·Foothill Freeway
Use the straight / slight right lanes.
28
Keep slight right at fork onto CA 210
16 mi·18 min·Foothill Freeway
Use the straight / slight right lanes.
29
Take the exit
0.3 mi·46 sec
Exit 67Toward Sierra AvenueUse the straight / slight right lanes.
30
Turn right onto Sierra Avenue
3.0 mi·4 min·Sierra Avenue
Use the left / right lanes.
31
Turn left onto Merrill Avenue
205 ft·4 sec·Merrill Avenue
Use the left lane.
32
Arrive at destination
Merrill Avenue
Trip Plan
To manage the 7-hour and 42-minute duration effectively, aim to leave early in the morning to avoid the worst of the traffic cycles common along these major California corridors. Since the route includes a massive 224.4-mile stretch on the Westside Freeway, schedule your two stops strategically to ensure you aren't pushing through fatigue during that long segment. Keep your $94 fuel budget in mind when planning your refilling intervals, as prices can fluctuate significantly between regions. Given the high highway percentage, keep a close eye on your cruise control settings to maintain efficiency. If you find the long, uninterrupted highway miles becoming tedious, rotate your driving tasks or music selection during your two planned breaks to stay alert.
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 203.8 miles from Bay Point, CA, or about 3h 51m 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 90 miles or 1h 49m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 203.8 miles or 3h 51m 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 31m
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 Bay Point, 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 Bay Point, CA
This is one driving day of about 407.6 miles and 7h 42m.
Your first comfortable stop window is around 90 miles from Bay Point, 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 23
5 decision points cluster between mile 12.1 and 404.2 — GPS handles the exact turns, but know they're coming. Your lane choice matters more than the turn itself.
6
12.1 mi into trip|~15m in|CA 4
Keep slight left at fork onto CA 4
Highway fork - watch signs carefully. Lane positioning matters here
Use the straight / slight right lanes.
6
33.6 mi into trip|~45m in|Mountain House Parkway
Turn right onto Mountain House Parkway
Lane positioning matters here
Use the slight left lane.
7
337 mi into trip|~6h 18m 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
361.7 mi into trip|~6h 47m 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
404.2 mi into trip|~7h 36m 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
$93.68 one way
$187.37 round trip
$5.84/gal25.4 MPG avg143 kg CO2
Fuel Type
$/gal
One Way
Round Trip
midgrade
$6.02
$96.54
$193.08
premium
$6.18
$99.12
$198.25
diesel
$5.61
$89.99
$179.99
No toll roads detected on this route.
Estimated Trip Cost (one way, 1 person)
Fuel
$94
Meals
$25–$50
Total
$119–$144
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 142.6 kg one way.
Prices: EIA weekly data, 2026-04-13.
Driving Electric?
About $43 in charging
· 1 stop
· 66% less CO2
Vehicle Type
kWh
Stops
DC Fast
Home Charge
Average EV
122.3
1
$42.80
$19.56
Efficient EV
101.9
1
$35.67
$16.30
EV Truck/SUV
163
2
$57.06
$26.09
Gas CO2
143 kg
EV CO2
48 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 14, 2026
Origin
Bay Point, CA
Late night
in Bay Point on Tuesday
Local time
3:12 AM
PDT
Current temp
--
Unavailable
Destination
Fontana, CA
Late night
in Fontana on Tuesday
Local time
3:12 AM
PDT
Current temp
72°F
Sunny
SW 5 to 15 mph0% chanceLive 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.
Road read
7h 42m 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...
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
~55 min detour
Free
near mile 337.3
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...
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
~70 min detour
Free
near mile 281.1
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...
Park data from the National Park Service API. Alerts update every 2 hours.
More Details
What kind of drive is this?
Expect a highly efficient, highway-focused experience, as 96% of this route consists of high-speed transit. You will spend a significant portion of your time on the Westside Freeway, which accounts for the longest uninterrupted stretch of 224.4 miles. Because the route relies so heavily on major interstates, it offers a consistent, rhythmic driving experience rather than a technical or winding path. Transitioning from the Bay Point area toward Fontana means you will primarily be navigating major arterial roads designed for long-distance travel. Prepare for a straightforward, interstate-heavy drive where maintaining a steady pace is the key to reaching your destination on time.
96% highway — fuel and pacing are the main things to plan.
32 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?
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 around 12.1 miles in near CA 4.
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 23 significant decision points across 407.6 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 12.1 miles (CA 4): Highway fork - watch signs carefully. Lane positioning matters here; at 33.6 miles (Mountain House Parkway): Lane positioning matters here; at 337 miles: Exit ramp - move to the correct lane early. Lane positioning matters here.
Elevation Profile
Gently rolling terrain
1,538 ft21 ft
Total Climb
2,535 ft
Total Descent
1,389 ft
Highest Point
1,538 ft
~320.2 mi in
Elevation Range
1,517 ft
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 Bay Point, CA to Fontana, CA, road signs begin pointing toward Ventura along the way.
Doable as a same-day drive at 7h 42m. Total distance: 407.6 miles.
Family Friendly
Moderate complexity with 2 natural rest stops along the way.
Solo Traveler
7h 42m 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.
Yes — we found about 35 rest areas or service plazas within a short detour of the route (from OpenStreetMap). See the Rest Stops tab under Nearby Places for locations and mile markers. Plan to stretch, use the bathroom, and top off fluids every 2–3 hours on longer drives.
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. There are 35 rest areas along the route for bathroom stops.
The main spots that need attention: at 12.1 miles (CA 4): Highway fork - watch signs carefully. Lane positioning matters here; at 33.6 miles (Mountain House Parkway): Lane positioning matters here; at 337 miles: Exit ramp - move to the correct lane early. Lane positioning matters here.
Yes — Port Chicago Naval Magazine National Memorial, Santa Monica Mountains National Recreation Area and Rosie the Riveter WWII Home Front 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 7.7 hours each way, a round trip means 15.4 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.
