This straightforward 58.3-mile drive from San Diego to San Onofre, California, will take you about 1 hour and 12 minutes. Primarily using the San Diego Freeway, this trip is perfect as a single-day excursion, requiring no overnight stays. With an estimated fuel cost of $13, it's an economical choice for a short regional hop. The route is almost entirely highway, making for a quick and efficient journey between these two Pacific Coast locations.
Main Roads
Road
Distance
Duration
San Diego Freeway
54.4 mi
1h 3m
Old Pacific Highway
2.8 mi
6m
1st Avenue
0.6 mi
1m
Basilone Road
<0.1 mi
<1m
West Broadway
<0.1 mi
<1m
Front Street
<0.1 mi
<1m
Longest stretch:
San Diego Freeway
— 54.4 mi, about 1h 3m
Traffic on I-5
Hour-of-day weekday pattern from 22 FHWA count stations on your route.
Peak
8 AM
~5,876 veh/hr typical
· worst 6,876
Quietest
2 AM
~1,854 veh/hr
Peak-to-quiet ratio
3.2×
busier at peak than in the quiet hours
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Averaged across 7 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 San Diego, CA and San Onofre, 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
4.6 mi·5 min·San Diego Freeway
8
Take the exit
0.2 mi·36 sec
Exit 71Toward San Onofre, Basilone RoadUse the straight / slight right lanes.
9
Turn left onto Basilone Road
467 ft·15 sec·Basilone Road
Use the straight / left / right lanes.
10
Continue on Old Pacific Highway
1.8 mi·4 min·Old Pacific Highway
11
Continue on Old Pacific Highway
1.1 mi·1 min·Old Pacific Highway
12
Arrive at destination
Old Pacific Highway
Where to Stop
Rest stops, refuel points, and overnight suggestions along this route.
The midpoint is around 29.2 miles from San Diego, 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.
Heads-up: tricky spots
5 of 8
5 decision points cluster between mile 0.1 and 55.4 — GPS handles the exact turns, but know they're coming. Your lane choice matters more than the turn itself.
6
0.1 mi into trip|~0m in|1st Avenue
Turn left onto 1st Avenue
Lane positioning matters here
Use the left lane.
6
0.6 mi into trip|~1m in
Take the ramp toward I 5 North: Los Angeles
Lane positioning matters here
Use the left / straight lanes.
Toward I 5 North: Los Angeles
6
14.3 mi into trip|~17m in|I 5 / San Diego Freeway
Keep slight left at fork onto I 5 / San Diego Freeway
Highway fork - watch signs carefully. Lane positioning matters here
Use the straight / slight right lanes.
8
55.2 mi into trip|~1h 5m in
Take the exit toward San Onofre, Basilone Road
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 71
Toward San Onofre, Basilone Road
7
55.4 mi into trip|~1h 6m in|Basilone Road
Turn left onto Basilone Road
Lane positioning matters here
Use the straight / left / right lanes.
Fuel & Cost
Regular Gas
$12.20 one way
$24.39 round trip
$5.31/gal25.4 MPG avg20 kg CO2
Fuel Type
$/gal
One Way
Round Trip
midgrade
$5.52
$12.67
$25.34
premium
$5.67
$13.00
$26.01
diesel
$4.80
$11.01
$22.02
No toll roads detected on this route.
Drive Cost (one way)
Fuel
$12
Estimated CO2 emission: 20.4 kg one way.
Prices: EIA weekly data, 2026-07-13.
Driving Electric?
About $6 in charging
· 0 stops
· 65% less CO2
Vehicle Type
kWh
Stops
DC Fast
Home Charge
Average EV
17.5
0
$6.12
$2.80
Efficient EV
14.6
0
$5.10
$2.33
EV Truck/SUV
23.3
0
$8.16
$3.73
Gas CO2
20 kg
EV CO2
7 kg (65% less)
This trip is well within single-charge range for most EVs. No charging stops needed if you start fully charged.
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 13, 2026
Origin
San Diego, CA
Afternoon
in San Diego on Sunday
Local time
12:17 PM
PDT
Current temp
67°F
Mostly Cloudy
W 0 to 5 mph5% chanceLive forecast
Extreme Heat Watch
Extreme Heat Watch issued July 12 at 9:58PM PDT until July 16 at 8:00PM PDT by NWS San Diego CA
Beach Hazards Statement
Beach Hazards Statement issued July 12 at 8:44PM PDT until July 15 at 11:00PM PDT by NWS Los Angeles/Oxnard CA
Destination
San Onofre, CA
Afternoon
in San Onofre on Sunday
Local time
12:17 PM
PDT
Current temp
68°F
Mostly Cloudy
W 5 mph5% chanceLive forecast
Extreme Heat Watch
Extreme Heat Watch issued July 12 at 9:58PM PDT until July 16 at 8:00PM PDT by NWS San Diego CA
Beach Hazards Statement
Beach Hazards Statement issued July 12 at 8:44PM PDT until July 15 at 11:00PM PDT by NWS Los Angeles/Oxnard CA
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
1 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
1h 12m on the road
The weather snapshot is not static. If you are leaving later, give both cities one more quick forecast check before departure.
Weather data from the National Weather Service. Conditions may change; check closer to your travel date.
More Details
What kind of drive is this?
Expect a highway-focused experience for most of this 58.3-mile trip, with 93% of the drive on freeways. You'll spend the majority of your time on the San Diego Freeway, experiencing a longest uninterrupted stretch of 54.4 miles. While the primary roads include Old Pacific Highway and 1st Avenue, the vast majority of the mileage is on the faster, more direct freeway. This means the character of the drive is largely about covering distance efficiently.
93% highway — fuel and pacing are the main things to plan.
12 navigation steps total — most of the decisions cluster near the start and finish.
Longest single stretch: 54.4 mi on San Diego Freeway.
How Hard Is This Drive?
7/10
This is a straightforward highway drive that stays mostly on San Diego Freeway and Old Pacific Highway. This route has several spots where lane changes, forks, or exits need your full attention. The trickiest moment comes around 0.1 miles in near 1st Avenue.
Driving Effort7/10
Demanding - plan breaks and stay ahead of the key maneuvers
Balances navigation complexity with total wheel time.
This drive requires moderate attention. Across 58.3 miles you will encounter 8 spots where lane choice or exit timing matters. Not difficult for experienced highway drivers, but worth previewing the tricky sections before you go.
Where does it get tricky?
The main spots that need attention: at 0.1 miles (1st Avenue): Lane positioning matters here; at 0.6 miles: Lane positioning matters here; at 14.3 miles (I 5 / San Diego Freeway): Highway fork - watch signs carefully. 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
Doable as a same-day drive at 1h 12m. Total distance: 58.3 miles.
Family Friendly
Moderate complexity with 0 natural rest stops along the way.
Solo Traveler
1h 12m drive, comfortable solo distance.
EV Driver
0 DC fast chargers along the route. Coverage: unknown.
First-Time Driver
Mostly highway driving (93%). Some complex stretches to watch for.
Frequently Asked Questions
The longest stretch is about 54.4 miles on San Diego Freeway. The full list of main roads is in the Roads section above.
Yes — we found about 3 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 San Onofre, CA before sunset when you can. Check the Trip Plan for departure windows that land you in daylight.
Yes. At under 2 hours behind the wheel, this works well for families — plan one quick stop if you have younger kids.
The main spots that need attention: at 0.1 miles (1st Avenue): Lane positioning matters here; at 0.6 miles: Lane positioning matters here; at 14.3 miles (I 5 / San Diego Freeway): Highway fork - watch signs carefully. Lane positioning matters here.
Yes — Cabrillo National Monument. See the National Parks section for detour distances and tips on detours.
Yes. A round trip is manageable in a single day if you plan a break at San Onofre, CA before heading back.
