Winton to San Bernardino is 336.4 miles and takes about 6h 21m via CA 99 and the Golden State Freeway, with a fuel budget near $77 and enough daylight to finish in a day. This drive stays within California, moving from the Pacific Coast region down towards the southern part of the state. It's a straightforward, highway-focused trip that's ideal for a single day of driving. Most of the journey involves freeway travel, making it a predictable and efficient way to cover the distance. Consider this route if you're looking for a no-fuss way to get from Northern to Southern California.
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
168.2 miles from Winton, CA
A natural place for your longest stop of the day
, about 3h 7m into the drive
.
Main Roads
Road
Distance
Duration
CA 99
102.5 mi
1h 54m
Golden State Freeway
92.8 mi
1h 44m
Foothill Freeway
73.7 mi
1h 24m
Golden State Highway
58.6 mi
1h 2m
Shaffer Road
2.3 mi
4m
San Bernardino Freeway
1.8 mi
2m
Santa Fe Drive
1.3 mi
1m
West 5th Street
0.8 mi
1m
Longest stretch:
CA 99
— 102.5 mi, about 1h 54m
Turn-by-Turn Driving Directions
Step-by-step road directions between Winton, CA and San Bernardino, CA.
1
Start on West Walnut Avenue
62 ft·7 sec·West Walnut Avenue
2
Turn left onto North Winton Way
0.2 mi·38 sec·North Winton Way
3
Turn left onto J7
1.3 mi·1 min·Santa Fe Drive
4
Turn right onto Shaffer Road
2.3 mi·4 min·Shaffer Road
5
Turn left onto Atwater Boulevard
0.6 mi·1 min·Atwater Boulevard
6
Take the ramp
0.2 mi·22 sec
7
Merge onto CA 99
62 mi·1 hr 9 min·CA 99
Use the straight / slight right lanes.
8
Keep slight left at fork onto CA 99
41 mi·44 min·CA 99
Use the straight / slight right lanes.
9
Keep slight left at fork onto CA 99
59 mi·1 hr 2 min·Golden State Highway
Use the straight / slight right lanes.
10
Continue on CA 99
5.2 mi·5 min·Golden State Freeway
Use the straight / slight right lanes.
11
Keep slight left at fork onto CA 99
27 mi·30 min·Golden State Freeway
Toward CA 99 South: Los AngelesUse the straight / slight right lanes.
12
Keep slight left at fork onto CA 99
58 mi·1 hr 6 min·Golden State Freeway
Use the straight / slight right lanes.
13
Keep slight left at fork onto I 5
2.0 mi·2 min·Golden State Freeway
Use the straight / slight right lanes.
14
Take the exit
0.3 mi·17 sec
Exit 161AToward I 210 East: PasadenaUse the slight right lane.
15
Continue on I 210
24 mi·28 min·Foothill Freeway
Use the straight / slight right lanes.
16
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.
17
Keep slight right at fork onto I 210
2.9 mi·3 min·Foothill Freeway
Use the straight / slight right lanes.
18
Keep slight right at fork onto CA 210
1.4 mi·1 min·Foothill Freeway
Use the straight / slight right lanes.
19
Keep slight right at fork onto CA 210
1.2 mi·1 min·Foothill Freeway
Use the straight / slight right lanes.
20
Keep slight right at fork onto CA 210
1.8 mi·2 min·Foothill Freeway
Use the straight / slight right lanes.
21
Keep slight right at fork onto CA 210
23 mi·26 min·Foothill Freeway
Use the straight / slight right lanes.
22
Take the exit
0.2 mi·29 sec
Exit 74Toward I 215: Barstow, RiversideUse the straight / slight right lanes.
23
Keep slight right at fork
0.6 mi·1 min
Exit 74Toward I 215 South: RiversideUse the slight left / slight right lanes.
24
Merge onto I 215
0.2 mi·13 sec·Barstow Freeway
25
Continue on I 215
1.8 mi·2 min·San Bernardino Freeway
26
Take the exit
0.4 mi·52 sec
Exit 44AToward CA 66 West: 5th Street, Civic CenterUse the slight right lane.
27
Turn left onto CA 66
0.8 mi·1 min·West 5th Street
Use the left / straight / right lanes.
28
Arrive at destination
West 5th Street
Trip Plan
Given the 6h 21m estimated drive time, leaving Winton in the morning should allow you to reach San Bernardino well before evening. With only one recommended stop, you can choose a convenient point along CA 99 for a break. Keep an eye on your fuel levels, especially during the longest stretch of 102.5 miles, to avoid any unnecessary delays. The $77 fuel cost is an estimate, so budget a little extra for fluctuations. This is a manageable one-day trip, so you can be flexible with your departure time.
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 168.2 miles from Winton, CA, or about 3h 7m into the drive.
The longest continuous stretch on this route runs about 102.5 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 74 miles or 1h 26m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 168.2 miles or 3h 7m 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 10m
Traffic, exits, and arrival timing usually matter more near San Bernardino, CA than in the middle of the route.
Before You Leave
+
Open the route before leaving Winton, 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 Winton, CA
This is one driving day of about 336.4 miles and 6h 21m.
Your first comfortable stop window is around 74 miles from Winton, 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 CA 99 for about 102.5 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 21
5 decision points cluster between mile 170.9 and 335.3 — GPS handles the exact turns, but know they're coming. Your lane choice matters more than the turn itself.
7
170.9 mi into trip|~3h 10m in|CA 99 / Golden State Freeway
Keep slight left at fork onto CA 99 / Golden State Freeway toward CA 99 South: Los Angeles
Highway fork - watch signs carefully. Lane positioning matters here
Use the straight / slight right lanes.
Toward CA 99 South: Los Angeles
8
283.2 mi into trip|~5h 18m 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,...
8
332.4 mi into trip|~6h 15m in
Take the exit toward I 215: Barstow, Riverside
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 74
Toward I 215: Barstow, Riverside
8
332.6 mi into trip|~6h 15m in
Keep slight right at fork toward I 215 South: Riverside
Highway fork - watch signs carefully. Lane positioning matters here
Use the slight left / slight right lanes.
Exit 74
Toward I 215 South: Riverside
8
335.3 mi into trip|~6h 19m in
Take the exit toward CA 66 West: 5th Street, Civic Center
Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one
Use the slight right lane.
Exit 44A
Toward CA 66 West: 5th Street, Civic Center
Fuel & Cost
Regular Gas
$77.32 one way
$154.64 round trip
$5.84/gal25.4 MPG avg118 kg CO2
Fuel Type
$/gal
One Way
Round Trip
midgrade
$6.02
$79.68
$159.35
premium
$6.18
$81.81
$163.62
diesel
$5.61
$74.27
$148.55
No toll roads detected on this route.
Estimated Trip Cost (one way, 1 person)
Fuel
$77
Meals
$25–$50
Total
$102–$127
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 117.7 kg one way.
Prices: EIA weekly data, 2026-04-13.
Driving Electric?
About $35 in charging
· 1 stop
· 67% less CO2
Vehicle Type
kWh
Stops
DC Fast
Home Charge
Average EV
100.9
1
$35.32
$16.15
Efficient EV
84.1
0
$29.43
$13.46
EV Truck/SUV
134.6
1
$47.10
$21.53
Gas CO2
118 kg
EV CO2
39 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 20, 2026
Origin
Winton, CA
Late night
in Winton on Tuesday
Local time
1:09 AM
PDT
Current temp
72°F
Unavailable
Live forecast
Destination
San Bernardino, CA
Late night
in San Bernardino on Tuesday
Local time
1:09 AM
PDT
Current temp
71°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
1 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 21m 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
~55 min detour
Free
near mile 255.2
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...
25 mi from route
~63 min detour
Free
near mile 185.6
Park data from the National Park Service API. Alerts update every 2 hours.
More Details
What kind of drive is this?
This is primarily a highway-focused drive, with 81% of the route utilizing major freeways like CA 99, the Golden State Freeway, and the Foothill Freeway. You'll encounter one significant stretch of 102.5 miles on CA 99, offering a sustained period of consistent driving. The character of the road is largely defined by its freeway nature, meaning you can expect consistent speeds and readily available services. While not overly varied, this highway focus ensures a direct and efficient journey for most of the 336.4 miles.
81% highway — fuel and pacing are the main things to plan.
28 navigation steps total — most of the decisions cluster near the start and finish.
Longest single stretch: 102.5 mi on CA 99.
How Hard Is This Drive?
9/10
This is a straightforward highway drive that stays mostly on CA 99 and Golden State Freeway. This route has several spots where lane changes, forks, or exits need your full attention. The trickiest moment comes around 170.9 miles in near CA 99 / Golden State Freeway.
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 21 significant decision points across 336.4 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 170.9 miles (CA 99 / Golden State Freeway): Highway fork - watch signs carefully. Lane positioning matters here; at 283.2 miles (I 210 / Foothill Freeway): Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one; at 332.4 miles: Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one.
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 Winton, CA to San Bernardino, CA, road signs begin pointing toward Ventura along the way.
Doable as a same-day drive at 6h 21m. Total distance: 336.4 miles.
Family Friendly
Moderate complexity with 1 natural rest stops along the way.
Solo Traveler
6h 21m drive, plan rest stops for pacing.
Frequently Asked Questions
The longest stretch is about 102.5 miles on CA 99. 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 San Bernardino, 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 170.9 miles (CA 99 / Golden State Freeway): Highway fork - watch signs carefully. Lane positioning matters here; at 283.2 miles (I 210 / Foothill Freeway): Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one; at 332.4 miles: Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one.
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 12.7 hours of driving — that is an unsafe level of fatigue for most drivers. Plan at least one night at San Bernardino, CA before the return drive.
