The drive from Fontana, CA to San Bruno, CA covers 421.6 miles and takes about 7h 58m behind the wheel.
This route is realistic as a one-day drive if you keep your stops efficient.
The route leans on Westside Freeway, Foothill Freeway, US 101 for much of the mileage,
and the overall profile is highway-focused drive.
The longest uninterrupted segment is about 182.5 miles on Westside Freeway.
At current regular gas prices, budget about $96.90 one way before food or hotel costs.
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
210.8 miles from Fontana, CA
A natural place for your longest stop of the day
, about 3h 57m into the drive
.
San Bruno is a city on the Peninsula in the San Francisco Bay Area of California. It is south of South San Francisco and north of Millbrae. It is the main headquarters of YouTube.
Doable as a same-day drive at 7h 58m. Total distance: 421.6 miles.
Family Friendly
Moderate complexity with 2 natural rest stops along the way.
Solo Traveler
7h 58m drive, plan rest stops for pacing.
Drive Character
This is a 7h 58m highway drive covering 421.6 miles, with most of the trip on Westside Freeway and Foothill Freeway. The longest continuous stretch is about 182.5 miles on Westside Freeway.
Most of the miles stay on highways, which makes pacing and fuel planning easier than turn-by-turn city driving.
There are about 28 navigation steps in the underlying route data, so the final approach matters more than the middle miles.
Westside Freeway is the longest continuous segment at about 182.5 miles.
How Hard Is This Drive?
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 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 25 significant decision points across 421.6 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: near the start (Sierra Avenue): Lane positioning matters here; 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.
Critical Maneuvers
5 of 25 key points
These are the spots where you need to pay the most attention. Preview them before you drive.
6
0 mi into trip|~0m in|Sierra Avenue
Turn right onto Sierra Avenue
Lane positioning matters here
Use the left / straight 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
7
420.4 mi into trip|~7h 55m in
Take the exit toward San Bruno Avenue
Exit ramp - move to the correct lane early. Lane positioning matters here
Use the slight right lane.
Exit 423A
Toward San Bruno Avenue
8
420.9 mi into trip|~7h 56m in
Keep slight left at fork toward US 101 North: Downtown San Bruno, San Bruno Avenue West
Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one
Use the left lane.
Toward US 101 North: Downtown San Bruno, San Br...
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 San Bruno, CA, road signs point toward Hollister and San Jose.
Hollister
312.7 mi in|~5h 47m
San Jose
312.7 mi in|~5h 47m
Main Roads
Road
Distance
Duration
Westside Freeway
182.5 mi
3h 15m
Foothill Freeway
67.2 mi
1h 17m
US 101
46.5 mi
53m
CA 152
41.1 mi
51m
I 5 Truck
37.1 mi
42m
Golden State Freeway
22.3 mi
25m
South Valley Freeway
19.9 mi
22m
Sierra Avenue
3 mi
4m
Longest stretch:
Westside Freeway
— 182.5 mi, about 3h 15m
Turn-by-Turn Driving Directions
Step-by-step road directions between Fontana, CA and San Bruno, 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
183 mi·3 hr 15 min·Westside Freeway
Toward I 5 NorthUse the straight / slight right lanes.
16
Take the exit
0.2 mi·26 sec
Exit 403BToward CA 152 West: Gilroy, Hollister, San Jose
17
Continue on CA 152; CA33
29 mi·33 min·CA 152; CA33
Use the straight lane.
18
Keep slight right at fork onto CA 152
12 mi·16 min·CA 152
19
Take the exit onto CA 152
0.5 mi·1 min·CA 152
Toward US 101 North: San Jose
20
Merge onto US 101; CA 152
20 mi·22 min·South Valley Freeway
Use the slight right lane.
21
Keep slight left at fork onto US 101
22 mi·25 min·US 101
Use the straight / slight right lanes.
22
Keep slight left at fork onto US 101
25 mi·28 min·US 101
Use the slight left lane.
23
Take the exit
0.5 mi·1 min
Exit 423AToward San Bruno AvenueUse the slight right lane.
24
Keep slight left at fork
289 ft·9 sec
Toward US 101 North: Downtown San Bruno, San Bruno Avenue WestUse the left lane.
25
Turn sharp left onto San Bruno Avenue East
0.6 mi·1 min·San Bruno Avenue East
Use the straight / right lanes.
26
Turn left onto 2nd Avenue
206 ft·11 sec·2nd Avenue
27
Turn right
354 ft·25 sec
28
Arrive at destination
Trip Plan
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 210.8 miles from Fontana, CA, or about 3h 57m into the drive.
The longest continuous stretch on this route runs about 182.5 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 93 miles or 1h 49m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 210.8 miles or 3h 57m 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 47m
Traffic, exits, and arrival timing usually matter more near San Bruno, 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.
Day 1
Settle into the route from Fontana, CA
This is one driving day of about 421.6 miles and 7h 58m.
Your first comfortable stop window is around 93 miles from Fontana, 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 182.5 miles.
Where to Stop
Rest stops, refuel points, and overnight suggestions along this route.
Halfway Point
Midpoint
About 210.8 mi from Fontana, CA
· 3h 57m into the drive
The midpoint is around 210.8 miles from Fontana, CA, which is a good place for a longer meal and fuel stop.
Arriving in San Bruno, CA
The final approach into San Bruno, CA usually feels slower than the middle of the drive, so avoid planning your tightest schedule at the very end.
Try to arrive with enough fuel left to skip an immediate station stop unless you already know the area around San Bruno, CA.
After long uninterrupted mileage, take five minutes before the last urban segment to reset and refocus on exits, merges, and city traffic.
These stop ideas are pacing suggestions — the exact town or exit can change with traffic, hotel plans, and fuel range.
National Parks Near This Route
Worth a detour if your schedule allows.
San Francisco Maritime National Historical Park
National Historical Park
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...
12 mi from route
~31 min detour
Free
near mile 421.6
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...
19 mi from route
~47 min detour
Free
near mile 421.6
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...
20 mi from route
~49 min detour
Free
near mile 421.6
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,...
21 mi from route
~51 min detour
$15
near mile 421.6
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 72.7
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
~66 min detour
Free
near mile 130.8
Park data from the National Park Service API. Alerts update every 2 hours.
Fuel & Cost
Regular Gas
$96.90 one way
$193.80 round trip
$5.84/gal25.4 MPG avg148 kg CO2
Fuel Type
$/gal
One Way
Round Trip
midgrade
$6.02
$99.86
$199.71
premium
$6.18
$102.53
$205.06
diesel
$5.61
$93.08
$186.17
No toll roads detected on this route.
Estimated Trip Cost (one way, 1 person)
Fuel
$97
Meals
$25–$50
Total
$122–$147
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 147.5 kg one way.
Prices: EIA weekly data, 2026-04-13.
Driving Electric?
About $44 in charging
· 1 stop
· 67% less CO2
Vehicle Type
kWh
Stops
DC Fast
Home Charge
Average EV
126.5
1
$44.27
$20.24
Efficient EV
105.4
1
$36.89
$16.86
EV Truck/SUV
168.6
2
$59.02
$26.98
Gas CO2
148 kg
EV CO2
49 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 15, 2026
Origin
Fontana, CA
Late night
in Fontana on Saturday
Local time
5:18 AM
PDT
Current temp
76°F
Unavailable
Live forecast
Destination
San Bruno, CA
Late night
in San Bruno on Saturday
Local time
5:18 AM
PDT
Current temp
52°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
24 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 58m 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.
Frequently Asked Questions
The drive from Fontana, CA to San Bruno, CA covers 421.6 miles and takes about 7h 58m without stops. Add 15-30 minutes for a fuel or rest stop on longer drives.
The main roads are Westside Freeway, Foothill Freeway, US 101. Most of the drive stays on highways, so watch for ramps and exits.
This is a comfortable same-day trip.
The midpoint is about 210.8 miles from Fontana, CA. Look for rest areas, gas stations, or food options near the halfway mark.
At current regular gas prices, expect to spend about $96.90 one way. This estimate uses 25.4 MPG — your actual cost will vary with your vehicle's fuel efficiency and current gas prices.
Start early — leave by 6-7 AM to arrive at a reasonable hour. This is a long drive — plan for a morning departure or consider splitting it into two days.
Plan about 2 meaningful breaks for fuel, food, or rest. Plan on a short reset every 3 to 4 hours to stay fresh behind the wheel.
This is a demanding drive. With 25 significant decision points across 421.6 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.
The main spots that need attention: near the start (Sierra Avenue): Lane positioning matters here; 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.
Between Fontana, CA and San Bruno, CA, road signs point toward Hollister and San Jose.
How this page is built
Compiled by the Trip.ovh planning team at COD Solutions Oy from open government datasets — OSRM over OpenStreetMap for geometry, EIA for fuel prices, and NPS for national parks. See our methodology for refresh cadence and limitations.
