How far is San Bernardino, CA from Castaic, CA?
The driving distance from San Bernardino, CA to Castaic, CA is about 93 miles (149.6 km), with a travel time of about 01h 49m by car.
- The straight-line flight distance is about 80.5 miles (129.6 km).
- For a round trip, plan for roughly 03h 39m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 8:00 AM to 10:00 AM PDT.
Reverse, save, or send this route
This route works well as a day trip with time at the destination. Copy the route link, send it to another device, or print a clean version before you head out.
This route works well as a day trip with time at the destination.
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 01h 49m.
A morning start gives you useful time at the destination and keeps the return out of the late evening.
You are leaving earlier than the recommended window, which gives you extra margin for breaks and traffic.
Halfway Point
A useful midpoint for breaks, coffee, or meeting in the middle.
A city in Los Angeles County, California.
Route Weather Snapshot
Check the forecast at both ends before you head out.
Sunny
Clear
Driving Route Map
The map below follows the saved road route between San Bernardino and Castaic.
Turn-by-Turn Driving Directions
Step-by-step road directions between San Bernardino and Castaic.
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1
Start on West 5th Street
1.1 km · 1 min · West 5th Street
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2
Take the ramp right toward I 215 North: Barstow
1769 ft · 45 sec
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3
Merge slight left onto San Bernardino Freeway
1.5 mi · 2 min · San Bernardino Freeway
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4
Continue on Barstow Freeway
2632 ft · 35 sec · Barstow Freeway
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5
Take the exit slight right toward CA 210 West: Pasadena
1 mi · 2 min
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6
Merge slight left onto Foothill Freeway
21.4 mi · 25 min · Foothill Freeway
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7
Keep slight right to continue on Foothill Freeway
1.2 mi · 1 min · Foothill Freeway
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8
Keep slight right to continue on Foothill Freeway
2.4 mi · 3 min · Foothill Freeway
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9
Keep slight right to continue on Foothill Freeway
1.4 mi · 2 min · Foothill Freeway
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10
Keep slight right to continue on Foothill Freeway
1.8 mi · 2 min · Foothill Freeway
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11
Keep slight right to continue on Foothill Freeway
20 mi · 23 min · Foothill Freeway
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12
Keep slight right to continue on Foothill Freeway
25.6 mi · 30 min · Foothill Freeway
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13
Keep slight right
686 ft · 9 sec
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14
Merge slight right
1.6 km · 1 min
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15
Keep slight left
13.5 mi · 16 min
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16
Take the exit slight right toward Parker Road
1130 ft · 33 sec
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17
Turn left onto Parker Road
1326 ft · 44 sec · Parker Road
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18
Turn left onto Castaic Oak Lane
19 m · 3 sec · Castaic Oak Lane
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19
Arrive at your destination
0 m · 1 sec · Castaic Oak Lane
Car Route Details
A richer read on the saved driving route between San Bernardino and Castaic.
Highway-focused drive
Most of the mileage stays on named highways, so the important moments are ramps, exits, merges, and the final local approach.
Foothill Freeway
Keep slight right to continue on Foothill Freeway
25.6 mi · 00h 30m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
A comfortable day-trip route
This route works well as a day trip. You can leave in the morning, spend meaningful time at the destination, and still return the same day.
Sunny leaving San Bernardino and Clear near Castaic.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from San Bernardino to Castaic?
The road trip is about 93 miles (149.6 km) and usually takes 01h 49m in normal driving conditions.
Is this a same-day trip or an overnight route?
This route works well as a day trip. You can leave in the morning, spend meaningful time at the destination, and still return the same day.
What is the halfway point on this route?
Arcadia is a useful midpoint, sitting about 46.4 miles from San Bernardino and 46.5 miles from Castaic.
How much longer is the road route than the straight-line distance?
The direct path is about 80.5 miles (129.6 km), while the road route adds roughly 12.5 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 8:00 AM to 10:00 AM PDT. If you want a more comfortable same-day return, try to leave by 2:50 PM PDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $20.54 one way or $41.07 round trip. Estimated CO2 is about 29.1 kg one way.
What should you check before leaving?
Before you leave, expect Sunny around San Bernardino and Clear near Castaic.
Stop Ideas Near Arcadia
Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.
Your Home Away From Home
Bell Gardens Inn Los Angeles
City Hall Park Center
City of Los Angeles
Transit and Meeting Points
Useful pickup, handoff, or rendezvous points close to Arcadia.
Pasadena, California
Glendale Transportation Center
Los Angeles Union Station
La Crescenta, California
Flight Path Map
This map shows the direct air route between San Bernardino and Castaic. Straight-line distance: 80.5 mi (129.56 km).
#1 San Bernardino
The second most populous city in San Bernardino County, California.
| Population | 217,491 |
| Coordinates | 34.1083400, -117.2897700 |
| Altitude | 321 |
| Country | United States |
#2 Castaic
Situated in the northwestern portion of Los Angeles County, this unincorporated area rests at an elevation of 1,227 feet within the rugged terrain of the Sierra Pelona Mountains.
| Population | 0 |
| Coordinates | 34.4888800, -118.6228700 |
| Altitude | 374 |
| Country | United States |
End: Castaic (-118.62287, 34.48888)
Estimated Travel Time
Distance: 150 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 03h 05m |
| 40 mph (64.37 km/h) | 02h 19m |
| 50 mph (80.47 km/h) | 01h 51m |
| 60 mph (96.56 km/h) | 01h 32m |
| 70 mph (112.65 km/h) | 01h 19m |
| 80 mph (129 km/h) | 01h 09m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $6.26 | $20.54 | $41.07 |
| Mid-grade | $6.50 | $21.32 | $42.63 |
| Premium | $6.69 | $21.94 | $43.88 |
| Diesel | $8.41 | $27.59 | $55.19 |
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