The drive from San Diego, CA to Boonville, CA covers 606.9 miles and takes about 11h 37m behind the wheel.
It usually feels better as a 2-day road trip than as one long push.
The route leans on Westside Freeway, San Diego Freeway, Saint Helena Highway for much of the mileage,
and the overall profile is long-distance drive.
The longest uninterrupted segment is about 225.6 miles on Westside Freeway.
At current regular gas prices, budget about $139.49 one way before food or hotel costs.
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
303.4 miles from San Diego, CA
A natural place for your longest stop of the day
, about 5h 46m into the drive
.
Drive Character
At 606.9 miles and 11h 37m of driving, this is a route where fuel stops, weather, and timing matter more than any single turn. The main roads are Westside Freeway and San Diego Freeway.
Most of the miles stay on highways, which makes pacing and fuel planning easier than turn-by-turn city driving.
There are about 63 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 225.6 miles.
How Hard Is This Drive?
This is a straightforward highway drive that stays mostly on Westside Freeway and San Diego Freeway. This route has several spots where lane changes, forks, or exits need your full attention. The trickiest moment comes around 144.7 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 52 significant decision points across 606.9 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 144.7 miles (I 5 Truck): Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one; at 466.8 miles: Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one; at 466.9 miles: Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one.
Critical Maneuvers
5 of 52 key points
These are the spots where you need to pay the most attention. Preview them before you drive.
9
144.7 mi into trip|~2h 52m 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
466.8 mi into trip|~8h 43m 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
466.9 mi into trip|~8h 43m 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
487.4 mi into trip|~9h 7m 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
502.3 mi into trip|~9h 24m 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
Towns Mentioned on Route Signs
Based on OSRM destination-sign hints, not a full list of every settlement the road passes.
Between San Diego, CA and Boonville, CA, road signs point toward San Francisco, Sacramento, Concord, Walnut Creek, Novato and Auto Mall.
San Francisco
430.2 mi in|~8h 2m|via I 580
Sacramento
466.8 mi in|~8h 43m
Concord
466.8 mi in|~8h 43m
Walnut Creek
466.8 mi in|~8h 43m
Novato
505.1 mi in|~9h 27m
Auto Mall
505.1 mi in|~9h 27m
Main Roads
Road
Distance
Duration
Westside Freeway
225.6 mi
4h 1m
San Diego Freeway
75.2 mi
1h 27m
Saint Helena Highway
51.2 mi
59m
Golden State Freeway
50 mi
57m
I 5 Truck
45.3 mi
52m
Santa Ana Freeway
30.4 mi
35m
Oat Valley Road
26.8 mi
39m
Arthur H. Breed Junior Freeway
19.6 mi
22m
Longest stretch:
Westside Freeway
— 225.6 mi, about 4h 1m
Turn-by-Turn Driving Directions
Step-by-step road directions between San Diego, CA and Boonville, CA.
1
Start on Front Street
26 ft·6 sec·Front Street
2
Turn left onto West Broadway
290 ft·12 sec·West Broadway
3
Turn left onto 1st Avenue
0.6 mi·1 min·1st Avenue
Use the left lane.
4
Take the ramp
0.2 mi·24 sec
Toward I 5 North: Los AngelesUse the left / straight lanes.
5
Merge onto I 5
13 mi·15 min·San Diego Freeway
Use the straight / slight right lanes.
6
Keep slight left at fork onto I 5
36 mi·43 min·San Diego Freeway
Use the straight / slight right lanes.
7
Keep slight right at fork onto I 5
18 mi·20 min·San Diego Freeway
Use the straight / slight right lanes.
8
Keep slight left at fork onto I 5
7.4 mi·8 min·San Diego Freeway
Use the straight / slight right lanes.
9
Keep slight right at fork onto I 5 Truck
1.6 mi·1 min·I 5 Truck
Toward Bake ParkwayUse the straight / slight right lanes.
10
Keep slight right at fork onto I 5 Truck
6.0 mi·6 min·I 5 Truck
Use the slight right lane.
11
Take the exit
0.2 mi·16 sec
Exit 100Toward Jamboree RoadUse the slight right lane.
12
Continue on this road
527 ft·11 sec·this road
13
Turn right onto Jamboree Road
0.1 mi·18 sec·Jamboree Road
Use the left / right lanes.
14
Turn left onto El Camino Real
2.2 mi·4 min·El Camino Real
Use the left lane.
15
Turn left onto Newport Avenue
357 ft·13 sec·Newport Avenue
Use the left lane.
16
Take the ramp
0.2 mi·16 sec
Toward I 5 North: Los Angeles
17
Merge onto I 5
1.3 mi·1 min·Santa Ana Freeway
Use the straight / slight right lanes.
18
Keep slight right at fork onto I 5
1.7 mi·1 min·Santa Ana Freeway
19
Keep slight right at fork onto I 5
9.4 mi·10 min·Santa Ana Freeway
Use the slight right lane.
20
Keep slight right at fork onto I 5
18 mi·20 min·Santa Ana Freeway
Use the straight / slight right lanes.
21
Keep slight right at fork onto I 5
25 mi·29 min·Golden State Freeway
Use the straight / slight right lanes.
22
Keep slight left at fork onto I 5
2.2 mi·2 min·Golden State Freeway
Use the straight / slight right lanes.
23
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.
24
Keep slight left at fork onto I 5 Truck
36 mi·41 min·I 5 Truck
Use the straight / slight right lanes.
25
Keep slight left at fork onto I 5
22 mi·25 min·Golden State Freeway
Use the straight / slight right lanes.
26
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.
27
Keep slight left at fork onto I 580
16 mi·17 min·William Elton Brown Freeway
Toward I 580 West: Tracy, San Francisco
28
Keep slight right at fork onto I 580 Bypass
1.1 mi·1 min·William Elton Brown Freeway
29
Merge onto I 580
18 mi·20 min·Arthur H. Breed Junior Freeway
Use the straight / slight right lanes.
30
Keep slight right at fork onto I 580
1.6 mi·1 min·Arthur H. Breed Junior Freeway
31
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.
32
Keep slight right at fork
0.3 mi·30 sec
Toward I 680 North: Walnut Creek, Concord, SacramentoUse the straight / slight right lanes.
33
Merge onto I 680
15 mi·17 min·Donald D Doyle Highway
Use the straight / slight right lanes.
34
Continue on I 680
5.0 mi·5 min·Senator Daniel E Boatwright Highway
Toward I 680, CA 24Use the straight / slight right lanes.
35
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.
36
Keep slight left at fork onto I 680
243 ft·3 sec·Senator Daniel E Boatwright Highway
37
Keep slight right at fork onto I 680
1.8 mi·2 min·Senator Daniel E Boatwright Highway
Use the slight right lane.
38
Keep slight left at fork onto I 780
6.7 mi·7 min·I 780
Toward I 780: BeniciaUse the straight / slight right lanes.
39
Take the exit
0.3 mi·33 sec
Exit 1BToward I 80 East: SacramentoUse the slight right lane.
40
Keep slight left at fork
448 ft·11 sec
Toward I 80 East: SacramentoUse the slight left lane.
41
Merge onto I 80
2.7 mi·3 min·Dwight D. Eisenhower Highway
Use the straight / slight right lanes.
42
Take the exit
0.1 mi·18 sec
Exit 33Toward CA 37: Napa, Novato, Auto Mall, Columbus ParkwayUse the straight / slight right lanes.
43
Keep slight left at fork
0.5 mi·1 min
Toward CA 37: NapaUse the straight / slight right lanes.
44
Continue on CA 37
1.5 mi·1 min·CA 37
Toward CA 37Use the straight / slight right lanes.
45
Take the exit
0.4 mi·51 sec
Exit 19Toward CA 29: Napa, Sonoma BoulevardUse the straight / slight right lanes.
46
Turn right onto CA 29
1.6 mi·1 min·Sonoma Boulevard
Use the right lane.
47
Continue on CA 29
4.0 mi·4 min·Broadway Street
Use the straight lane.
48
Continue on CA 29
1.3 mi·1 min·Napa–Vallejo Highway
Use the left lane.
49
Continue on CA 12; CA 29
22 mi·25 min·Saint Helena Highway
Use the straight / slight right lanes.
50
Continue on CA 29; CA 128
2.4 mi·2 min·Main Street
51
Continue on CA 29; CA 128
6.8 mi·7 min·Saint Helena Highway
52
Continue on CA 128
1.4 mi·1 min·Foothill Boulevard
53
Continue on CA 128
16 mi·18 min·Saint Helena Highway
54
Continue on CA 128
6.6 mi·7 min·Saint Helena Highway
55
At end of road, turn right onto CA 128
0.9 mi·1 min·Geyserville Avenue
56
Turn left onto CA 128
359 ft·6 sec·Canyon Road
57
Take the exit onto CA 128
0.3 mi·39 sec·CA 128
58
Merge onto US 101; CA 128
7.7 mi·8 min·Redwood Highway
Use the straight / slight right lanes.
59
Take the exit
0.2 mi·32 sec
Toward Citrus Fair Drive
60
Turn left onto Citrus Fair Drive
0.3 mi·35 sec·Citrus Fair Drive
61
Turn right onto South Cloverdale Boulevard
1.3 mi·2 min·South Cloverdale Boulevard
62
Turn left onto CA 128
27 mi·39 min·Oat Valley Road
63
Arrive at destination
CA 128
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.
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 303.4 miles from San Diego, CA, or about 5h 46m 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 134 miles or 2h 39m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 303.4 miles or 5h 46m 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 303.4 miles or 5h 46m
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 10h 18m
Traffic, exits, and arrival timing usually matter more near Boonville, CA than in the middle of the route.
Before You Leave
+
Open the route before leaving San Diego, 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 San Diego, CA
Aim for roughly 303 miles and 5.8 hours of wheel time on this day.
Day 2
Finish the approach into Boonville, CA
Aim for roughly 303 miles and 5.8 hours of wheel time on this day.
Your first comfortable stop window is around 134 miles from San Diego, 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.
Halfway Point
Midpoint
About 303.4 mi from San Diego, CA
· 5h 46m into the drive
Place data sourced from public business listings. Hours and availability may vary.
National Parks Near This Route
Worth a detour if your schedule allows.
Cabrillo National Monument
National Monument
In 1542, Juan Rodriguez Cabrillo climbed out of his boat and onto shore, becoming the first European to set foot on what is now the West Coast of the United States. Cabrillo National Monument not only...
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...
11 mi from route
~28 min detour
Free
near mile 502.2
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...
14 mi from route
~36 min detour
Free
near mile 502.2
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...
21 mi from route
~53 min detour
Free
near mile 481.3
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
~56 min detour
Free
near mile 146.5
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,...
23 mi from route
~59 min detour
$15
near mile 502.2
Park data from the National Park Service API. Alerts update every 2 hours.
Fuel & Cost
Regular Gas
$139.49 one way
$278.98 round trip
$5.84/gal25.4 MPG avg212 kg CO2
Fuel Type
$/gal
One Way
Round Trip
midgrade
$6.02
$143.74
$287.49
premium
$6.18
$147.59
$295.18
diesel
$5.61
$134.00
$267.99
No toll roads detected on this route.
Estimated Trip Cost (one way, 1 person)
Fuel
$139
Hotel (1n)
$80–$140
Meals
$50–$100
Total
$269–$379
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 212.3 kg one way.
Prices: EIA weekly data, 2026-04-13.
Driving Electric?
About $64 in charging
· 2 stops
· 67% less CO2
Vehicle Type
kWh
Stops
DC Fast
Home Charge
Average EV
182.1
2
$63.72
$29.13
Efficient EV
151.7
1
$53.10
$24.28
EV Truck/SUV
242.8
3
$84.97
$38.84
Gas CO2
212 kg
EV CO2
71 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 Apr 15, 2026
Origin
San Diego, CA
Late night
in San Diego on Friday
Local time
4:15 AM
PDT
Current temp
56°F
Unavailable
Live forecast
Destination
Boonville, CA
Late night
in Boonville on Friday
Local time
4:15 AM
PDT
Current temp
43°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.
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
13 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
11h 37m 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.
Frequently Asked Questions
The drive from San Diego, CA to Boonville, CA covers 606.9 miles and takes about 11h 37m without stops. Add 15-30 minutes for a fuel or rest stop on longer drives.
The main roads are Westside Freeway, San Diego Freeway, Saint Helena Highway. Expect a mix of highway and local road driving.
Consider an overnight stop or starting very early.
Yes. This route is usually more comfortable as a 2-day drive. A sensible stopping point is after roughly 303 miles on day one.
The midpoint is about 303.4 miles from San Diego, CA. Look for rest areas, gas stations, or food options near the halfway mark.
At current regular gas prices, expect to spend about $139.49 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 3 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 52 significant decision points across 606.9 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: at 144.7 miles (I 5 Truck): Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one; at 466.8 miles: Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one; at 466.9 miles: Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one.
Between San Diego, CA and Boonville, CA, road signs point toward San Francisco, Sacramento, Concord, Walnut Creek, Novato and Auto Mall.
Yes. Nearby national parks include Cabrillo National Monument, Port Chicago Naval Magazine National Memorial and Rosie the Riveter WWII Home Front National Historical Park. There are 6 parks within detour distance of this route.
How this page is built
Compiled and maintained by the Trip.ovh planning team at COD Solutions Oy (Helsinki). Each route is built from authoritative open government and mapping datasets rather than crowdsourced reviews. Distances and geometry come from
OSRM
over
OpenStreetMap.
Fuel cost uses
EIA
weekly regional averages.
National park proximity is from the
NPS API.
Pages are published only after passing our data-quality checks; our
methodology page
documents refresh cadence, editorial standards, and known limitations.
