How far is San Onofre, CA from Carlsbad, CA?
The driving distance from San Onofre, CA to Carlsbad, CA is about 22.8 miles (36.7 km), with a travel time of about 00h 25m by car.
- The straight-line flight distance is about 20.1 miles (32.3 km).
- For a round trip, plan for roughly 00h 51m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 7:00 AM to 7:00 PM PDT.
Reverse, save, or send this route
This is an easy same-day return drive. Copy the route link, send it to another device, or print a clean version before you head out.
This is an easy same-day return drive.
Flight Distance
Driving Distance
Gas Cost Calculator
Leave and Arrive Planner
Pick a departure time to see your estimated arrival and same-day return window.
Drive time stays fixed at 00h 25m.
This is a short drive, so your comfort window is wide. Traffic and current weather matter more than the clock.
This departure sits inside the recommended comfort window for the route.
Halfway Point
A useful midpoint for breaks, coffee, or meeting in the middle.
The second most populous city in San Diego County, California.
Route Weather Snapshot
Check the forecast at both ends before you head out.
Sunny
Sunny
Driving Route Map
The map below follows the saved road route between San Onofre and Carlsbad.
Turn-by-Turn Driving Directions
Step-by-step road directions between San Onofre and Carlsbad.
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1
Start on Old Pacific Highway
1.1 km · 1 min · Old Pacific Highway
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2
Take the ramp right toward I 5 South: San Diego
1320 ft · 32 sec
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3
Merge slight left onto San Diego Freeway
20.2 mi · 23 min · San Diego Freeway
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4
Take the exit slight right toward Las Flores Drive
1152 ft · 30 sec
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5
Turn right onto Las Flores Drive
88 m · 15 sec · Las Flores Drive
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6
Turn left onto Jefferson Street
3162 ft · 1 min · Jefferson Street
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7
Turn right onto Grand Avenue
2042 ft · 1 min · Grand Avenue
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8
Turn left onto Carlsbad Boulevard
152 m · 21 sec · Carlsbad Boulevard
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9
Turn left onto Carlsbad Village Drive
42 m · 7 sec · Carlsbad Village Drive
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10
Turn right
25 m · 7 sec
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11
Turn right
9 m · 2 sec
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12
Arrive at your destination
0 m · 1 sec
Car Route Details
A richer read on the saved driving route between San Onofre and Carlsbad.
Turn-heavy local drive
The route has frequent decision points for its length, so lane choice and turn timing will matter more than cruising speed.
San Diego Freeway
Merge slight left onto San Diego Freeway
20.2 mi · 00h 23m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
A short regional drive
This route is short enough to handle as a quick errand, commute, or easy same-day return without much planning overhead.
Sunny leaving San Onofre and Sunny near Carlsbad.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from San Onofre to Carlsbad?
The road trip is about 22.8 miles (36.7 km) and usually takes 00h 25m in normal driving conditions.
Is this a same-day trip or an overnight route?
This route is short enough to handle as a quick errand, commute, or easy same-day return without much planning overhead.
What is the halfway point on this route?
Oceanside is a useful midpoint, sitting about 11.2 miles from San Onofre and 11.6 miles from Carlsbad.
How much longer is the road route than the straight-line distance?
The direct path is about 20.1 miles (32.3 km), while the road route adds roughly 2.7 extra miles because roads do not follow the straight air line.
When is the best time to leave for this route?
A good departure window is usually 7:00 AM to 7:00 PM PDT. If you want a more comfortable same-day return, try to leave by 7:38 PM PDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $5.01 one way or $10.02 round trip. Estimated CO2 is about 7.1 kg one way.
What should you check before leaving?
Before you leave, expect Sunny around San Onofre and Sunny near Carlsbad.
Stop Ideas Near Oceanside
Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.
Grand Pacific Palisades Resort
San Clemente Business Licenses
Vista Civic Center
Carlsbad Inn Beach Resort
Transit and Meeting Points
Useful pickup, handoff, or rendezvous points close to Oceanside.
Oceanside Transit Center
Carlsbad Village station
Carlsbad Poinsettia, CA
Encinitas, CA
Flight Path Map
This map shows the direct air route between San Onofre and Carlsbad. Straight-line distance: 20.07 mi (32.3 km).
#1 San Onofre
Located on the Pacific coast of northern San Diego County at an elevation of roughly 30 feet, this area features rugged coastal bluffs overlooking San Onofre State Beach.
| Population | 0 |
| Coordinates | 33.3811400, -117.5731000 |
| Altitude | 9 |
| Country | United States |
#2 Carlsbad
The most populous city in San Diego County, California.
| Population | 115,599 |
| Coordinates | 33.1580900, -117.3505900 |
| Altitude | 16 |
| Country | United States |
End: (-117.350622, 33.158133)
Estimated Travel Time
Distance: 37 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 00h 45m |
| 40 mph (64.37 km/h) | 00h 34m |
| 50 mph (80.47 km/h) | 00h 27m |
| 60 mph (96.56 km/h) | 00h 22m |
| 70 mph (112.65 km/h) | 00h 19m |
| 80 mph (129 km/h) | 00h 17m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $6.26 | $5.01 | $10.02 |
| Mid-grade | $6.50 | $5.20 | $10.40 |
| Premium | $6.69 | $5.35 | $10.70 |
| Diesel | $8.41 | $6.73 | $13.46 |
Assumes 8.3 L/100 km (about 28.3 MPG). CO2 is an estimate and varies by vehicle, fuel blend, traffic, and terrain.
Prices in California · Oct 15, 2026