This 640.1-mile journey from Los Angeles to Humboldt Hill, California, will take approximately 12 hours and 22 minutes of driving time. Given its length, it's best planned as a 2-day trip to avoid fatigue. The estimated fuel cost for this Pacific Coast to Pacific Coast drive is around $147. You'll primarily be on the Westside Freeway, Redwood Highway, and Saint Helena Highway, with 55% of the route utilizing highways. This long-distance drive offers a substantial travel experience across California.
Trip Pace
Best split across 2 days
Treat the return leg as its own travel day rather than an afterthought.
Break Rhythm
3 planned breaks
Plan on a short reset every 3 to 4 hours to stay fresh behind the wheel.
Midpoint
320 miles from Los Angeles, CA
A natural place for your longest stop of the day
, about 5h 52m into the drive
.
Main Roads
Road
Distance
Duration
Westside Freeway
225.6 mi
4h 1m
Redwood Highway
181.7 mi
3h 42m
Saint Helena Highway
51.2 mi
59m
I 5 Truck
37.7 mi
43m
Golden State Freeway
29 mi
33m
Arthur H. Breed Junior Freeway
19.6 mi
22m
William Elton Brown Freeway
17 mi
18m
Hollywood Freeway
15.5 mi
19m
Longest stretch:
Westside Freeway
— 225.6 mi, about 4h 1m
Traffic on I-5
Hour-of-day weekday pattern from 89 FHWA count stations on your route.
Peak
2 PM
~1,926 veh/hr typical
· worst 2,652
Quietest
2 AM
~360 veh/hr
Peak-to-quiet ratio
5.4×
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 Angeles, CA and Humboldt Hill, CA.
1
Start on West 1st Street
0.1 mi·32 sec·West 1st Street
2
Turn right onto North Broadway
0.4 mi·49 sec·North Broadway
3
Take the ramp
0.2 mi·30 sec
Toward US 101 North, CA 110
4
Merge onto US 101
0.7 mi·55 sec·Santa Ana Freeway
5
Continue on US 101
15 mi·19 min·Hollywood Freeway
Use the straight / slight right lanes.
6
Keep slight left at fork
0.9 mi·59 sec
Use the straight / slight right lanes.
7
Merge onto I 5
4.5 mi·5 min·Golden State Freeway
Use the straight / slight right lanes.
8
Keep slight left at fork onto I 5
2.2 mi·2 min·Golden State Freeway
Use the straight / slight right lanes.
9
Keep slight right at fork onto I 5 Truck
1.5 mi·1 min·I 5 Truck
Exit 161AToward I 5 Truck North, CA 14 TruckUse the straight / slight right lanes.
10
Keep slight left at fork onto I 5 Truck
36 mi·41 min·I 5 Truck
Use the straight / slight right lanes.
11
Keep slight left at fork onto I 5
22 mi·25 min·Golden State Freeway
Use the straight / slight right lanes.
12
Keep slight right at fork onto I 5
226 mi·4 hr 1 min·Westside Freeway
Toward I 5 NorthUse the straight / slight right lanes.
13
Keep slight left at fork onto I 580
16 mi·17 min·William Elton Brown Freeway
Toward I 580 West: Tracy, San Francisco
14
Keep slight right at fork onto I 580 Bypass
1.1 mi·1 min·William Elton Brown Freeway
15
Merge onto I 580
18 mi·20 min·Arthur H. Breed Junior Freeway
Use the straight / slight right lanes.
16
Keep slight right at fork onto I 580
1.6 mi·1 min·Arthur H. Breed Junior Freeway
17
Take the exit
0.2 mi·16 sec
Exit 44BToward I 680 South, I 680 North: San Jose, Sacramento, Concord, Walnut CreekUse the slight right lane.
18
Keep slight right at fork
0.3 mi·30 sec
Toward I 680 North: Walnut Creek, Concord, SacramentoUse the straight / slight right lanes.
19
Merge onto I 680
15 mi·17 min·Donald D Doyle Highway
Use the straight / slight right lanes.
20
Continue on I 680
5.0 mi·5 min·Senator Daniel E Boatwright Highway
Toward I 680, CA 24Use the straight / slight right lanes.
21
Keep slight left at fork onto I 680
6.0 mi·6 min·Senator Daniel E Boatwright Highway
Toward I 680 North: Martinez, SacramentoUse the straight / slight right lanes.
22
Keep slight left at fork onto I 680
243 ft·3 sec·Senator Daniel E Boatwright Highway
23
Keep slight right at fork onto I 680
1.8 mi·2 min·Senator Daniel E Boatwright Highway
Use the slight right lane.
24
Keep slight left at fork onto I 780
6.7 mi·7 min·I 780
Toward I 780: BeniciaUse the straight / slight right lanes.
25
Take the exit
0.3 mi·33 sec
Exit 1BToward I 80 East: SacramentoUse the slight right lane.
26
Keep slight left at fork
448 ft·11 sec
Toward I 80 East: SacramentoUse the slight left lane.
27
Merge onto I 80
2.7 mi·3 min·Dwight D. Eisenhower Highway
Use the straight / slight right lanes.
28
Take the exit
0.1 mi·18 sec
Exit 33Toward CA 37: Napa, Novato, Auto Mall, Columbus ParkwayUse the straight / slight right lanes.
29
Keep slight left at fork
0.5 mi·1 min
Toward CA 37: NapaUse the straight / slight right lanes.
30
Continue on CA 37
1.5 mi·1 min·CA 37
Toward CA 37Use the straight / slight right lanes.
31
Take the exit
0.4 mi·51 sec
Exit 19Toward CA 29: Napa, Sonoma BoulevardUse the straight / slight right lanes.
32
Turn right onto CA 29
1.6 mi·1 min·Sonoma Boulevard
Use the right lane.
33
Continue on CA 29
4.0 mi·4 min·Broadway Street
Use the straight lane.
34
Continue on CA 29
1.3 mi·1 min·Napa–Vallejo Highway
Use the left lane.
35
Continue on CA 12; CA 29
22 mi·25 min·Saint Helena Highway
Use the straight / slight right lanes.
36
Continue on CA 29; CA 128
2.4 mi·2 min·Main Street
37
Continue on CA 29; CA 128
6.8 mi·7 min·Saint Helena Highway
38
Continue on CA 128
1.4 mi·1 min·Foothill Boulevard
39
Continue on CA 128
16 mi·18 min·Saint Helena Highway
40
Continue on CA 128
6.6 mi·7 min·Saint Helena Highway
41
At end of road, turn right onto CA 128
0.9 mi·1 min·Geyserville Avenue
42
Turn left onto CA 128
359 ft·6 sec·Canyon Road
43
Take the exit onto CA 128
0.3 mi·39 sec·CA 128
44
Merge onto US 101; CA 128
55 mi·1 hr 7 min·Redwood Highway
Use the straight / slight right lanes.
45
Continue on US 101
4.5 mi·5 min·Willits Bypass
Use the straight / slight right lanes.
46
Take the exit
0.7 mi·48 sec
47
Merge onto US 101
0.2 mi·16 sec·Willits Bypass
48
Continue on US 101
126 mi·2 hr 35 min·Redwood Highway
Use the straight / slight right lanes.
49
Take the exit
0.3 mi·36 sec
Toward King Salmon
50
Continue on South Broadway Street
0.1 mi·25 sec·South Broadway Street
51
Turn right onto Purdue Drive
0.3 mi·1 min·Purdue Drive
52
Turn left onto Stanford Drive
0.2 mi·42 sec·Stanford Drive
53
Turn right onto Humboldt Hill Road
0.7 mi·1 min·Humboldt Hill Road
54
Turn left onto Skyline Drive
0.1 mi·36 sec·Skyline Drive
55
Turn left onto Vista Road
0.2 mi·53 sec·Vista Road
56
Continue on Linda Road
0.4 mi·1 min·Linda Road
57
Continue on Linda Road
350 ft·17 sec·Linda Road
58
Continue on Linda Road
116 ft·5 sec·Linda Road
59
Arrive at destination
Linda Road
Trip Plan
For this 12-hour drive, splitting it over 2 days is highly recommended, with 3 planned stops to help break up the journey. Consider an early morning departure to maximize daylight hours, especially if you plan to drive significant portions on any given day. Keep an eye on your fuel gauge, as the longest stretch without a break is over 225 miles. It's wise to budget for the $147 fuel cost and factor in rest stops 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.
This drive is better paced as a 2-day trip.
Plan roughly 3 meaningful breaks for fuel, food, and rest.
The halfway point lands around 320 miles from Los Angeles, CA, or about 5h 52m into the drive.
The longest continuous stretch on this route runs about 225.6 miles.
Consider an overnight stop or starting very early.
Departure
Before you leave
Start with fuel, water, and navigation already sorted so the first hour feels easy.
First stop
Around 141 miles or 2h 40m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 320 miles or 5h 52m in
This is the best place for your longest stop, a real meal, and a full fuel check.
Overnight split
Day 1 wrap after about 320 miles or 5h 52m
Stop before fatigue turns the last few hours into a grind. You want day two to start fresh, not just resumed.
Final approach
Final hour starts around 11h 3m
Traffic, exits, and arrival timing usually matter more near Humboldt Hill, CA than in the middle of the route.
Before You Leave
+
Open the route before leaving Los Angeles, 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.
+
Treat this as a 2-day road trip and book the overnight stop before the busiest arrival window.
Day 1
Settle into the route from Los Angeles, CA
Aim for roughly 320 miles and 6.2 hours of wheel time on this day.
Day 2
Finish the approach into Humboldt Hill, CA
Aim for roughly 320 miles and 6.2 hours of wheel time on this day.
Your first comfortable stop window is around 141 miles from Los Angeles, CA.
This route usually feels better as a 2-day drive than as one long push.
Plan about 3 real breaks rather than only quick fuel stops.
The longest stretch is on Westside Freeway for about 225.6 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 43
5 decision points cluster between mile 24.5 and 382 — GPS handles the exact turns, but know they're coming. Your lane choice matters more than the turn itself.
9
24.5 mi into trip|~31m in|I 5 Truck
Keep slight right at fork onto I 5 Truck toward I 5 Truck North, CA 14 Truck
Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one
Use the straight / slight right lanes.
Exit 161A
Toward I 5 Truck North, CA 14 Truck
8
346.6 mi into trip|~6h 22m in
Take the exit toward I 680 South, I 680 North: San Jose, Sacramento, Concord, Walnut Creek
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 44B
Toward I 680 South, I 680 North: San Jose, Sacr...
9
346.7 mi into trip|~6h 22m in
Keep slight right at fork toward I 680 North: Walnut Creek, Concord, Sacramento
Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one
Use the straight / slight right lanes.
Toward I 680 North: Walnut Creek, Concord, Sacr...
8
367.2 mi into trip|~6h 46m in|I 680 / Senator Daniel E Boatwright Highway
Keep slight left at fork onto I 680 / Senator Daniel E Boatwright Highway toward I 680 North: Martinez, Sacramento
Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one
Use the straight / slight right lanes.
Toward I 680 North: Martinez, Sacramento
8
382 mi into trip|~7h 4m in
Keep slight left at fork toward I 80 East: Sacramento
Highway fork - watch signs carefully. Lane positioning matters here
Use the slight left lane.
Toward I 80 East: Sacramento
Fuel & Cost
Regular Gas
$133.92 one way
$267.83 round trip
$5.31/gal25.4 MPG avg224 kg CO2
Fuel Type
$/gal
One Way
Round Trip
midgrade
$5.52
$139.08
$278.17
premium
$5.67
$142.76
$285.52
diesel
$4.80
$120.86
$241.73
No toll roads detected on this route.
Estimated Trip Cost (one way, 1 person)
Fuel
$134
Hotel (1n)
$80–$140
Meals
$50–$100
Total
$264–$374
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 224 kg one way.
Prices: EIA weekly data, 2026-07-13.
Driving Electric?
About $67 in charging
· 2 stops
· 67% less CO2
Vehicle Type
kWh
Stops
DC Fast
Home Charge
Average EV
192
2
$67.21
$30.72
Efficient EV
160
1
$56.01
$25.60
EV Truck/SUV
256
3
$89.61
$40.97
Gas CO2
224 kg
EV CO2
75 kg (67% less)
Plan for 2 charging stops, roughly every 270 miles. Allow 25-40 minutes per stop at a DC fast charger.
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 16, 2026
Origin
Los Angeles, CA
Evening
in Los Angeles on Saturday
Local time
6:32 PM
PDT
Current temp
92°F
Sunny
SSW 5 to 10 mph1% chanceLive forecast
Extreme Heat Warning
Extreme Heat Warning issued July 16 at 1:29PM PDT until July 16 at 8:00PM PDT by NWS San Diego CA
Extreme Heat Warning
Extreme Heat Warning issued July 16 at 1:29PM PDT until July 16 at 8:00PM PDT by NWS San Diego CA
Destination
Humboldt Hill, CA
Evening
in Humboldt Hill on Saturday
Local time
6:32 PM
PDT
Current temp
62°F
Partly Sunny
N 9 to 13 mph0% chanceLive forecast
Extreme Heat Warning
Extreme Heat Warning issued July 16 at 1:29PM PDT until July 16 at 8:00PM PDT by NWS San Diego CA
Extreme Heat Warning
Extreme Heat Warning issued July 16 at 1:29PM PDT until July 16 at 8:00PM PDT by NWS San Diego 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.
For long drives, weather on day two can matter just as much as conditions at departure, so check the whole travel window rather than only the first day.
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
30 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
12h 22m on the road
This is long enough that the arrival forecast matters almost as much as departure conditions. Recheck both ends before you roll.
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...
5 mi from route
~13 min detour
Free
near mile 375.2
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...
16 mi from route
~40 min detour
Free
near mile 375.2
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 22.1
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...
23 mi from route
~58 min detour
Free
near mile 375.2
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...
27 mi from route
~68 min detour
Free
near mile 88.3
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,...
27 mi from route
~67 min detour
$15
near mile 375.2
Park data from the National Park Service API. Alerts update every 2 hours.
More Details
What kind of drive is this?
This route presents a mix of driving experiences, with 55% of it on highways. You'll encounter a significant 225.6-mile stretch on the Westside Freeway, indicating extended periods of faster travel. As you progress, the roads will likely transition, with segments of the Redwood Highway and Saint Helena Highway potentially offering more varied terrain and speed. This isn't a monotonous interstate cruise; expect a dynamic drive that changes as you head north.
55% highway, the rest on surface roads — varied driving throughout.
59 navigation steps total — most of the decisions cluster near the start and finish.
Longest single stretch: 225.6 mi on Westside Freeway.
How Hard Is This Drive?
10/10
At 12h 22m, this is a long-haul route where pacing matters more than any single turn. This route has several spots where lane changes, forks, or exits need your full attention. The trickiest moment comes around 24.5 miles in near I 5 Truck.
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 43 significant decision points across 640.1 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 24.5 miles (I 5 Truck): Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one; at 346.6 miles: Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one; at 346.7 miles: Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one.
Elevation Profile
Hilly terrain with moderate elevation changes
2,461 ft73 ft
Total Climb
4,493 ft
Total Descent
4,442 ft
Highest Point
2,461 ft
~45.7 mi in
Elevation Range
2,388 ft
Notable High Points
2,461 ft at ~45.7 miles+2,097 ft prominence
Towns Mentioned on Route Signs
Based on OSRM destination-sign hints, not a full list of every settlement the road passes.
Between Los Angeles, CA and Humboldt Hill, CA, road signs point toward San Francisco, Sacramento, Concord, Walnut Creek, Novato and Auto Mall.
Frank Lloyd Wright is said to have quipped, "Tip the world over on its side and everything loose will land in Los Angeles," a quote that has since been repeated both by those who love and hate L.A. The "City of Angels" is home to people who hail from all parts of the globe and an important center of culture, business, media, and international trade. However, it's most famous for being a major center of the world's television, motion picture, and music industry, which forms the base of the city's status and lures visitors for its show business history and celebrity culture. Visitors are also drawn to Los Angeles for its Mediterranean climate and numerous beaches, which gave birth to California's famed surf culture.
Top landmarks
•Hollywood Walk of Fame — more than 2,700 five-pointed terrazzo and brass stars embedded in the sidewalks...
•Hollywood Sign — sign reading "HOLLYWOOD" located in Los Angeles, California, United States
•Getty Center — campus of the Getty Museum and other programs of the Getty Trust in Los Angeles
Long-haul drive route profile with national parks nearby.
Frequently Asked Questions
The longest stretch is about 225.6 miles on Westside Freeway. The full list of main roads is in the Roads section above.
Yes — a 2-day pace is more comfortable than one long haul. A sensible stopping point is after roughly 320 miles on day one.
Yes — we found about 39 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 Humboldt Hill, 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 3 meaningful breaks. There are 39 rest areas along the route for bathroom stops.
The main spots that need attention: at 24.5 miles (I 5 Truck): Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one; at 346.6 miles: Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one; at 346.7 miles: Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one.
Yes — Port Chicago Naval Magazine National Memorial, Rosie the Riveter WWII Home Front National Historical Park and Santa Monica Mountains National Recreation Area (6 total within detour distance). See the National Parks section for detour distances and tips on detours.
Not recommended in a single day. At 12.4 hours each way, a round trip means 24.7 hours of driving — that is an unsafe level of fatigue for most drivers. Plan at least one night at Humboldt Hill, CA before the return drive.
