Origin
Kernville, CA
Morning in Kernville on Saturday
Local time
11:18 AM
PDT
Current temp
71°F
Unavailable
Live forecast
Trip from Kernville, CA to San Diego, CA
Compiled and reviewed by the Trip.ovh planning team at COD Solutions Oy · Last reviewed Apr 18, 2026 · Editorial standards
Drive Time
5h 17m
Distance
286.1 mi
460 km
Drive Score
8/10
Great drive
Same Day?
Yes, doable
Fuel Cost
$66
one way
EV Charging
Unknown
Best Time to Leave
4 AM
5h 4m
★
6 AM
5h 17m
8 AM
5h 44m
10 AM
5h 27m
12 PM
5h 24m
3 PM
5h 28m
5 PM
5h 43m
8 PM
5h 9m
Estimated drive times based on typical traffic patterns. Actual times may vary with weather, construction, and real-time conditions.
Kernville, CA
Ahsen
San Diego, CA
Wikimedia Commons
Trip Overview
The drive from Kernville, CA to San Diego, CA covers 286.1 miles and takes about 5h 17m behind the wheel. This route is realistic as a one-day drive if you keep your stops efficient.
The route leans on Kernville Road, Sierra Way, Isabella Walker Pass Road for much of the mileage, and the overall profile is mostly surface roads. At current regular gas prices, budget about $65.76 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
1 planned break
Plan on a short reset every 3 to 4 hours to stay fresh behind the wheel.
Midpoint
143 miles from Kernville, CA
A natural place for your longest stop of the day , about 2h 38m into the drive .
Main Roads
| Road | Distance | Duration |
|---|---|---|
| Kernville Road | — | — |
| Sierra Way | — | — |
| Isabella Walker Pass Road | — | — |
| Midland Trail | — | — |
| Aerospace Highway | — | — |
| West Inyokern Road | — | — |
| Blue Star Memorial Highway | — | — |
| Red Mountain Road | — | — |
Some road-level metrics are being recalculated.
Longest stretch:
Kernville Road
— detailed segment metrics are refreshing.
Turn-by-Turn Driving Directions
Step-by-step road directions between Kernville, CA and San Diego, CA.
1
Start on Big Blue Road
39 ft
·
8 sec
·
Big Blue Road
2
Turn left onto Kernville Road
0.4 mi
·
49 sec
·
Kernville Road
3
At the end of the road, turn right onto Sierra Way
13 mi
·
23 min
·
Sierra Way
4
At the end of the road, turn left onto Isabella Walker Pass Road
32 mi
·
48 min
·
Isabella Walker Pass Road
5
Turn left onto Midland Trail
0.5 mi
·
34 sec
·
Midland Trail
6
Continue on Aerospace Highway
2.5 mi
·
2 min
·
Aerospace Highway
7
Turn right onto West Inyokern Road
4.7 mi
·
8 min
·
West Inyokern Road
8
Take the ramp right
0.4 mi
·
25 sec
9
Merge slight left onto Blue Star Memorial Highway
24 mi
·
28 min
·
Blue Star Memorial Highway
10
Continue on Red Mountain Road
0.9 mi
·
1 min
·
Red Mountain Road
11
Continue on Blue Star Memorial Highway
67 mi
·
1 hr 20 min
·
Blue Star Memorial Highway
12
Take the exit straight toward I 15 South: San Bernardino, Los Angeles
0.7 mi
·
1 min
·
I 15 South: San Bernardino, Los Angeles
13
Merge slight left onto Barstow and Mojave Freeway
3.4 mi
·
3 min
·
Barstow and Mojave Freeway
14
Continue on CHP Officer Larry L. Wetterling and San Bernardino County Sheriff's Lieutenant Alfred E. Stewart Memorial Highway
5.6 mi
·
6 min
·
CHP Officer Larry L. Wetterling and San Bernardino County Sheriff's Lieutenant Alfred E. Stewart Memorial Highway
15
Continue on Barstow and Mojave Freeway
6.3 mi
·
6 min
·
Barstow and Mojave Freeway
16
Continue on Barstow Freeway
0.2 mi
·
13 sec
·
Barstow Freeway
17
Keep slight left to continue on Barstow Freeway
9.3 mi
·
10 min
·
Barstow Freeway
18
Continue on San Bernardino Freeway
5.6 mi
·
6 min
·
San Bernardino Freeway
19
Continue on Riverside Freeway
5.3 mi
·
6 min
·
Riverside Freeway
20
Take the exit slight right toward I 215 South, CA 60 East: San Diego, Indio
5.1 mi
·
5 min
·
I 215 South, CA 60 East: San Diego, Indio
21
Keep slight right to continue on I 215, CA 60 Truck
0.5 mi
·
33 sec
·
I 215, CA 60 Truck
22
Keep slight right
36 mi
·
41 min
23
Continue on Avocado Highway
22 mi
·
23 min
·
Avocado Highway
24
Continue on Escondido Freeway
3.4 mi
·
3 min
·
Escondido Freeway
25
Keep slight right to continue on Escondido Freeway
8.7 mi
·
10 min
·
Escondido Freeway
26
Continue on Tony Gwynn Memorial Freeway
4.5 mi
·
5 min
·
Tony Gwynn Memorial Freeway
27
Continue on Escondido Freeway
3.1 mi
·
3 min
·
Escondido Freeway
28
Continue on Semper Fi Highway
2.2 mi
·
2 min
·
Semper Fi Highway
29
Take the exit slight right toward CA 163 South
0.7 mi
·
52 sec
·
CA 163 South
30
Continue on Cabrillo Freeway
8.2 mi
·
9 min
·
Cabrillo Freeway
31
Continue on Cabrillo Parkway
1.5 mi
·
1 min
·
Cabrillo Parkway
32
Continue on Cabrillo Parkway
0.8 mi
·
1 min
·
Cabrillo Parkway
33
Continue on 10th Avenue
0.3 mi
·
42 sec
·
10th Avenue
34
Turn right onto Broadway
0.5 mi
·
1 min
·
Broadway
35
Turn left onto Front Street
26 ft
·
1 sec
·
Front Street
36
Arrive at your destination
Trip Plan
Morning Departure
An early start around 7-8 AM gets you there with plenty of daylight left.
Evening Departure
A late afternoon start means arriving after dark. Morning is better.
You can normally do this drive in one day.
Plan roughly 1 meaningful break for fuel, food, and rest.
The halfway point lands around 143 miles from Kernville, CA, or about 2h 38m into the drive.
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 63 miles or 1h 9m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 143 miles or 2h 38m in
This is the best place for your longest stop, a real meal, and a full fuel check.
Final approach
Final hour starts around 4h 20m
Traffic, exits, and arrival timing usually matter more near San Diego, CA than in the middle of the route.
Before You Leave
+
Open the route before leaving Kernville, 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 Kernville, CA
This is one driving day of about 286.1 miles and 5h 17m.
Your first comfortable stop window is around 63 miles from Kernville, 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.
Where to Stop
Rest stops, refuel points, and overnight suggestions along this route.
Mid-route town
Meal stop
143 mi into the route
Best for: Lunch, fuel, and a longer reset
This sits close to the middle of the route, so it works well for the longest stop of the day.
Pacing Suggestions
Fuel and coffee
A short stop after about 63 miles helps settle the day before fatigue starts building.
Meal break
The midpoint is around 143 miles from Kernville, CA, which is a good place for a longer meal and fuel stop.
These stop ideas are pacing suggestions — the exact town or exit can change with traffic, hotel plans, and fuel range.
Fuel & Cost
Regular Gas
$65.76 one way
$131.52 round trip
$5.84/gal
25.4 MPG avg
100 kg CO2
| Fuel Type | $/gal | One Way | Round Trip |
|---|---|---|---|
| midgrade | $6.02 | $67.76 | $135.53 |
| premium | $6.18 | $69.58 | $139.15 |
| diesel | $5.61 | $63.17 | $126.33 |
No toll roads detected on this route.
Estimated Trip Cost (one way, 1 person)
Fuel
$66
Meals
$25–$50
Total
$91–$116
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 100.1 kg one way. Prices: EIA weekly data, 2026-04-13.
Driving Electric?
About $30 in charging · 1 stop · 67% less CO2
| Vehicle Type | kWh | Stops | DC Fast | Home Charge |
|---|---|---|---|---|
| Average EV | 85.8 | 1 | $30.04 | $13.73 |
| Efficient EV | 71.5 | 0 | $25.03 | $11.44 |
| EV Truck/SUV | 114.4 | 1 | $40.05 | $18.31 |
Gas CO2
100 kg
EV CO2
33 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.
Destination
San Diego, CA
Morning in San Diego on Saturday
Local time
11:18 AM
PDT
Current temp
56°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
15 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
5h 17m on the road
An early start around 7-8 AM gets you there with plenty of daylight left.
Weather data from the National Weather Service. Conditions may change; check closer to your travel date.
What kind of drive is this?
286.1 mi in 5h 17m across surface roads — expect steady turns and local traffic rather than long highway runs.
Only 0% highway — the rest is turn-by-turn surface driving.
36 navigation steps total — most of the decisions cluster near the start and finish.
Main road: Kernville Road.
How Hard Is This Drive?
3/10
Expect a hands-on drive with frequent turns and local roads rather than long highway stretches. There are only a few real navigation decisions along the way.
Driving Effort
3/10
Easy - simple navigation with a manageable amount of wheel time
Balances navigation complexity with total wheel time.
This is a straightforward 5h 17m drive. You will face about 0 decision points, but nothing that requires special attention if you follow navigation.
Where does it get tricky?
This route does not have any notably tricky sections. Most of the drive from Kernville, CA to San Diego, CA is straightforward, with well-signed roads and simple exits.
About the Cities
Arriving in San Diego, CA
Full guide →Founded 1769
From balmy beaches with a laid-back attitude to a gleaming modern image, San Diego offers much for the tourist to enjoy. Situated on the Southern California seacoast, San Diego is the second largest city in the state, with 1.4 million residents (2020), and has long attracted travelers for its ideal climate, miles of beaches, and location on the Mexican border right across from Tijuana. But there's much more here than surfer culture and a quick hop across the border. A rich maritime and military heritage lives on in San Diego, which is home to the Pacific Fleet of the United States Navy. The city has also become known for its part in the wildlife conservation movement, owing to the presence of the world-renowned San Diego Zoo and Safari Park and the Scripps Institution of Oceanography. Natural scenery abounds from rocky tidepools and seaside cliffs to desert hills and canyons inland.
Top landmarks
- • Balboa Park — historic park in San Diego, California
- • Cabrillo National Monument — National Monument of the United States and historic district
City content from Wikivoyage (CC BY-SA 4.0) and Wikidata (CC0).
Who Is This Route For?
Weekend Trip
Doable as a same-day drive at 5h 17m. Total distance: 286.1 miles.
Family Friendly
Moderate complexity with 1 natural rest stops along the way.
Solo Traveler
5h 17m drive, comfortable solo distance.
First-Time Driver
Mostly highway driving (0%). Straightforward navigation.
Scenic Drive
Mostly surface roads route profile.
Frequently Asked Questions
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.
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.
This route does not have any notably tricky sections. Most of the drive from Kernville, CA to San Diego, CA is straightforward, with well-signed roads and simple exits.
Not recommended in a single day. At 5.3 hours each way, a round trip means 10.6 hours of driving — that is an unsafe level of fatigue for most drivers. Plan at least one night at San Diego, CA before the return drive.
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, and EIA for fuel prices. See our methodology for refresh cadence and limitations.
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