Los Gatos to Fontana is 387.4 miles and takes about 7h 19m via Westside Freeway and I 5 Truck, with a fuel budget near $88 and enough daylight to finish in a day. This trip stays within California, traversing the Pacific Coast region on its way to Southern California. With 88% of the drive on highways, expect a relatively straightforward and efficient route. It's a solid choice for a single-day drive, but be prepared for the majority of your time to be spent on major freeways.
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
193.7 miles from Los Gatos, CA
A natural place for your longest stop of the day
, about 3h 39m into the drive
.
Main Roads
Road
Distance
Duration
Westside Freeway
181.1 mi
3h 14m
Foothill Freeway
67 mi
1h 17m
I 5 Truck
58.4 mi
1h 6m
Pacheco Pass Highway
40.6 mi
50m
US 101
20.3 mi
23m
West Valley Freeway
9.9 mi
11m
Sierra Avenue
3 mi
4m
Golden State Freeway
2 mi
2m
Longest stretch:
Westside Freeway
— 181.1 mi, about 3h 14m
Traffic on I-5
Hour-of-day weekday pattern from 138 FHWA count stations on your route.
Peak
2 PM
~1,524 veh/hr typical
· worst 2,324
Quietest
2 AM
~316 veh/hr
Peak-to-quiet ratio
4.8×
busier at peak than in the quiet hours
12a6anoon6p11p
Averaged across 44 weeks of 2023 FHWA Travel Monitoring Analysis System data. Weekday hours only (Mon–Fri).
Turn-by-Turn Driving Directions
Step-by-step road directions between Los Gatos, CA and Fontana, CA.
1
Start on this road
4 ft·0 sec·this road
Exit 20BToward CA 9: Los Gatos, Saratoga
2
Turn straight onto CA 9
197 ft·3 sec·Los Gatos-Saratoga Road
Use the straight lane.
3
Take the ramp
0.2 mi·21 sec
Toward CA 17 South
4
Merge onto CA 17
21 ft·0 sec·CA 17
Toward CA 17
5
Take the exit
0.2 mi·28 sec
Exit 20AToward East Los GatosUse the right lane.
6
Turn straight onto CA 9
198 ft·3 sec·Los Gatos-Saratoga Road
Use the straight lane.
7
Take the ramp
0.1 mi·21 sec
Toward CA 17 North: San Jose
8
Merge onto CA 17
1.7 mi·2 min·CA 17
Use the straight / slight right lanes.
9
Take the exit
0.2 mi·19 sec
Exit 22Toward CA 85 North, CA 85 South: Mountain View, GilroyUse the straight / slight right lanes.
10
Keep slight right at fork
0.8 mi·1 min
Toward CA 85 South: GilroyUse the slight right lane.
11
Merge onto CA 85
9.9 mi·11 min·West Valley Freeway
Use the straight / slight right lanes.
12
Continue on CA 85
0.4 mi·27 sec·CA 85
Exit 1AToward US 101 South
13
Continue on US 101
20 mi·23 min·US 101
14
Take the exit onto CA 152
0.3 mi·39 sec·CA 152
Toward CA 152 East: 10th Street, Pacheco Pass Road
15
Turn left onto CA 152
353 ft·12 sec·East 10th Street
16
Continue on CA 152
41 mi·50 min·Pacheco Pass Highway
17
Take the exit
0.6 mi·1 min
Toward I 5: Los Angeles
18
Merge onto I 5
181 mi·3 hr 14 min·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 make the most of this 7-hour drive, aim to depart Los Gatos early in the morning to avoid the worst of any potential traffic, especially as you approach Southern California. With only 2 planned stops, you'll have ample flexibility to adjust your timing based on how you feel. Keep an eye on your fuel gauge, as the $88 budget is based on a nearly all-highway drive; fuel stops can be fewer but might be more spread out. The 181.1-mile stretch on the Westside Freeway is a good indicator that you can cover significant ground before needing a break.
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 193.7 miles from Los Gatos, CA, or about 3h 39m into the drive.
The longest continuous stretch on this route runs about 181.1 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 85 miles or 1h 43m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 193.7 miles or 3h 39m 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 8m
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 Los Gatos, 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 Los Gatos, CA
This is one driving day of about 387.4 miles and 7h 19m.
Your first comfortable stop window is around 85 miles from Los Gatos, 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 181.1 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 27
5 decision points cluster between mile 0.2 and 341.5 — GPS handles the exact turns, but know they're coming. Your lane choice matters more than the turn itself.
8
0.2 mi into trip|~0m in
Take the exit toward East Los Gatos
Exit ramp - move to the correct lane early. Lane positioning matters here
Use the right lane.
Exit 20A
Toward East Los Gatos
8
2.3 mi into trip|~3m in
Take the exit toward CA 85 North, CA 85 South: Mountain View, Gilroy
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 22
Toward CA 85 North, CA 85 South: Mountain View,...
7
2.5 mi into trip|~3m in
Keep slight right at fork toward CA 85 South: Gilroy
Highway fork - watch signs carefully. Lane positioning matters here
Use the slight right lane.
Toward CA 85 South: Gilroy
7
316.9 mi into trip|~5h 56m 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
341.5 mi into trip|~6h 24m 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
$81.05 one way
$162.10 round trip
$5.31/gal25.4 MPG avg136 kg CO2
Fuel Type
$/gal
One Way
Round Trip
midgrade
$5.52
$84.18
$168.35
premium
$5.67
$86.40
$172.80
diesel
$4.80
$73.15
$146.30
No toll roads detected on this route.
Estimated Trip Cost (one way, 1 person)
Fuel
$81
Meals
$25–$50
Total
$106–$131
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 135.5 kg one way.
Prices: EIA weekly data, 2026-07-13.
Driving Electric?
About $41 in charging
· 1 stop
· 67% less CO2
Vehicle Type
kWh
Stops
DC Fast
Home Charge
Average EV
116.2
1
$40.68
$18.60
Efficient EV
96.9
1
$33.90
$15.50
EV Truck/SUV
155
1
$54.24
$24.79
Gas CO2
136 kg
EV CO2
45 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 Jul 17, 2026
Origin
Los Gatos, CA
Late night
in Los Gatos on Monday
Local time
5:06 AM
PDT
Current temp
54°F
Mostly Clear
NNW 1 to 5 mph0% chanceLive forecast
Heat Advisory
Heat Advisory issued July 16 at 12:00PM PDT until July 16 at 11:00PM PDT by NWS Hanford CA
Red Flag Warning
Red Flag Warning issued July 16 at 11:39AM PDT until July 17 at 8:00PM PDT by NWS Medford OR
Destination
Fontana, CA
Late night
in Fontana on Monday
Local time
5:06 AM
PDT
Current temp
71°F
Mostly Clear
SW 0 to 5 mph3% chanceLive forecast
Heat Advisory
Heat Advisory issued July 16 at 12:00PM PDT until July 16 at 11:00PM PDT by NWS Hanford CA
Red Flag Warning
Red Flag Warning issued July 16 at 11:39AM PDT until July 17 at 8:00PM PDT by NWS Medford OR
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
17 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
7h 19m 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...
24 mi from route
~61 min detour
Free
near mile 320.6
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
~68 min detour
Free
near mile 253.8
Park data from the National Park Service API. Alerts update every 2 hours.
More Details
What kind of drive is this?
This route is predominantly highway driving, with 88% of the 387.4 miles on major roads like the Westside Freeway and I 5 Truck. You'll encounter a longest stretch of 181.1 miles on the Westside Freeway, meaning extended periods without needing to navigate surface streets. Expect a consistent highway feel for most of the trip, with the transition to non-highway driving occurring later in the drive.
88% 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: 181.1 mi on Westside Freeway.
How Hard Is This Drive?
10/10
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 0.2 miles in.
Driving Effort10/10
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 27 significant decision points across 387.4 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 0.2 miles: Exit ramp - move to the correct lane early. Lane positioning matters here; at 2.3 miles: Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one; at 2.5 miles: Highway fork - watch signs carefully. Lane positioning matters here.
Elevation Profile
High-altitude sections with notable climbs
3,625 ft237 ft
Total Climb
5,145 ft
Total Descent
4,270 ft
Highest Point
3,625 ft
~276.7 mi in
Elevation Range
3,388 ft
Notable High Points
3,625 ft at ~276.7 miles+2,564 ft prominence
1,739 ft at ~332.1 miles+679 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 Los Gatos, CA to Fontana, CA, road signs begin pointing toward Ventura along the way.
Los Gatos is a town of 30,000 people (2019) in Santa Clara County, near San Jose, California in the foothills of the Santa Cruz mountains. Downtown Los Gatos has retained and restored many of its Victorian-era homes and commercial buildings.
Top landmarks
•Kotani-en — Classical Japanese residence in Santa Clara County, California, United States
•Los Gatos Historic Commercial District — designated U.S. Historic District area of the city of Los Gatos, California, USA...
•New Museum Los Gatos — art, history museum in Los Gatos, California
Doable as a same-day drive at 7h 19m. Total distance: 387.4 miles.
Family Friendly
Moderate complexity with 2 natural rest stops along the way.
Solo Traveler
7h 19m drive, plan rest stops for pacing.
Frequently Asked Questions
The longest stretch is about 181.1 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 0.2 miles: Exit ramp - move to the correct lane early. Lane positioning matters here; at 2.3 miles: Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one; at 2.5 miles: Highway fork - watch signs carefully. 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 7.3 hours each way, a round trip means 14.6 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.
