Spanning 350.7 miles from San Diego to Barstow, this route takes approximately 6 hours and 45 minutes to complete. While you could technically tackle this as a single-day trip, be prepared for a solid day of driving through the Pacific Coast region. You will spend about 67% of your time on highways, utilizing a combination of the Golden State Highway, the Golden State Freeway, and the San Diego Freeway. Budget roughly $81 for fuel to get you from the coast to the high desert. It is a straightforward, highway-focused journey that is best suited for travelers looking to move efficiently between these two California points.
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
175.3 miles from San Diego, CA
A natural place for your longest stop of the day
, about 3h 27m into the drive
.
Main Roads
Road
Distance
Duration
Golden State Highway
107.1 mi
1h 55m
Golden State Freeway
83.3 mi
1h 34m
San Diego Freeway
75.2 mi
1h 27m
I 5 Truck
45.3 mi
52m
Santa Ana Freeway
30.4 mi
35m
West Shaw Avenue
4.7 mi
10m
El Camino Real
2.2 mi
4m
1st Avenue
0.6 mi
1m
Longest stretch:
Golden State Highway
— 107.1 mi, about 1h 55m
Turn-by-Turn Driving Directions
Step-by-step road directions between San Diego, CA and Barstow, 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 left at fork onto CA 99
27 mi·30 min·Golden State Freeway
Use the straight / slight right lanes.
27
Keep slight left at fork onto CA 99
6.0 mi·6 min·Golden State Freeway
Use the straight / slight right lanes.
28
Continue on CA 99
107 mi·1 hr 55 min·Golden State Highway
Use the straight / slight right lanes.
29
Take the exit
0.3 mi·40 sec
Exit 140Toward Shaw AvenueUse the straight / slight right lanes.
30
Turn right onto West Shaw Avenue
4.7 mi·10 min·West Shaw Avenue
31
Turn right onto North Dickenson Avenue
0.5 mi·1 min·North Dickenson Avenue
32
Turn right onto West Barstow Avenue
152 ft·6 sec·West Barstow Avenue
33
Arrive at destination
West Barstow Avenue
Trip Plan
To make the most of your 6-hour and 45-minute travel time, plan for at least one substantial stop to break up the monotony of the freeway. Aim to depart early in the morning to avoid the densest traffic patterns often found on these major California arteries. Since you are looking at an $81 fuel cost, keep an eye on your gauge during that long 107.1-mile stretch on the Golden State Highway, as services can vary in frequency. Flexibility is your best asset here; since the route is manageable in a single day, you have the freedom to adjust your pace based on real-time traffic conditions rather than needing to commit to an overnight stay.
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 175.3 miles from San Diego, CA, or about 3h 27m into the drive.
The longest continuous stretch on this route runs about 107.1 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 77 miles or 1h 31m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 175.3 miles or 3h 27m 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 34m
Traffic, exits, and arrival timing usually matter more near Barstow, 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.
Day 1
Settle into the route from San Diego, CA
This is one driving day of about 350.7 miles and 6h 45m.
Your first comfortable stop window is around 77 miles from San Diego, 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 Golden State Highway for about 107.1 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 29
5 decision points cluster between mile 76.1 and 345.2 — GPS handles the exact turns, but know they're coming. Your lane choice matters more than the turn itself.
7
76.1 mi into trip|~1h 29m in|I 5 Truck
Keep slight right at fork onto I 5 Truck toward Bake Parkway
Highway fork - watch signs carefully. Lane positioning matters here
Use the straight / slight right lanes.
Toward Bake Parkway
7
83.7 mi into trip|~1h 38m in
Take the exit toward Jamboree Road
Exit ramp - move to the correct lane early. Lane positioning matters here
Use the slight right lane.
Exit 100
Toward Jamboree Road
7
84 mi into trip|~1h 39m in|Jamboree Road
Turn right onto Jamboree Road
Lane positioning matters here
Use the left / right lanes.
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
7
345.2 mi into trip|~6h 32m in
Take the exit toward Shaw Avenue
Exit ramp - move to the correct lane early. Lane positioning matters here
Use the straight / slight right lanes.
Exit 140
Toward Shaw Avenue
Fuel & Cost
Regular Gas
$80.61 one way
$161.21 round trip
$5.84/gal25.4 MPG avg123 kg CO2
Fuel Type
$/gal
One Way
Round Trip
midgrade
$6.02
$83.06
$166.13
premium
$6.18
$85.29
$170.57
diesel
$5.61
$77.43
$154.86
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: 122.7 kg one way.
Prices: EIA weekly data, 2026-04-13.
Driving Electric?
About $37 in charging
· 1 stop
· 67% less CO2
Vehicle Type
kWh
Stops
DC Fast
Home Charge
Average EV
105.2
1
$36.82
$16.83
Efficient EV
87.7
1
$30.69
$14.03
EV Truck/SUV
140.3
1
$49.10
$22.44
Gas CO2
123 kg
EV CO2
41 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 19, 2026
Origin
San Diego, CA
Late night
in San Diego on Tuesday
Local time
3:26 AM
PDT
Current temp
58°F
Unavailable
Live forecast
Destination
Barstow, CA
Late night
in Barstow on Tuesday
Local time
3:26 AM
PDT
Current temp
51°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
7 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 45m 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.
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...
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 145.1
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 217.7
Park data from the National Park Service API. Alerts update every 2 hours.
More Details
What kind of drive is this?
Expect a quintessential California interstate experience, as the route is heavily oriented toward high-speed, multi-lane transit. You will navigate a mix of major freeways that provide a consistent, steady pace throughout the 350.7-mile trek. The most significant test of your endurance will be the 107.1-mile stretch along the Golden State Highway, which serves as the longest uninterrupted portion of the trip. Because the drive is dominated by heavy highway usage, you will find the road character remains fairly uniform, prioritizing speed and directness over technical maneuvers or winding backroads.
67% highway — fuel and pacing are the main things to plan.
33 navigation steps total — most of the decisions cluster near the start and finish.
Longest single stretch: 107.1 mi on Golden State Highway.
How Hard Is This Drive?
8/10
This is a straightforward highway drive that stays mostly on Golden State Highway and Golden State Freeway. This route has several spots where lane changes, forks, or exits need your full attention. The trickiest moment comes around 76.1 miles in near I 5 Truck.
Driving Effort8/10
Demanding - plan breaks and stay ahead of the key maneuvers
Balances navigation complexity with total wheel time.
This is a demanding drive. With 29 significant decision points across 350.7 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 76.1 miles (I 5 Truck): Highway fork - watch signs carefully. Lane positioning matters here; at 83.7 miles: Exit ramp - move to the correct lane early. Lane positioning matters here; at 84 miles (Jamboree Road): Lane positioning matters here.
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
Barstow is a city of 24,000 people (2018) in the southern desert of the state of California. The city's location at the junction of Interstate 15 and Interstate 40 in the middle of a barren desert, as well as its position on the old Route 66, make it a frequent pit stop for travelers passing through on their way to more exotic destinations.
Top landmarks
•Barstow Harvey House — train station in Barstow, California
•Western America Railroad Museum — railroad museum in Barstow, California
Doable as a same-day drive at 6h 45m. Total distance: 350.7 miles.
Family Friendly
Moderate complexity with 1 natural rest stops along the way.
Solo Traveler
6h 45m drive, plan rest stops for pacing.
Frequently Asked Questions
The longest stretch is about 107.1 miles on Golden State Highway. 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 Barstow, 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 76.1 miles (I 5 Truck): Highway fork - watch signs carefully. Lane positioning matters here; at 83.7 miles: Exit ramp - move to the correct lane early. Lane positioning matters here; at 84 miles (Jamboree Road): Lane positioning matters here.
Yes — Cabrillo National Monument, 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 6.8 hours each way, a round trip means 13.5 hours of driving — that is an unsafe level of fatigue for most drivers. Plan at least one night at Barstow, CA before the return drive.
