How far is Irvine, CA from San Dimas, CA?
The driving distance from Irvine, CA to San Dimas, CA is about 40.1 miles (64.5 km), with a travel time of about 00h 47m by car.
- The straight-line flight distance is about 30.2 miles (48.6 km).
- For a round trip, plan for roughly 01h 35m 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 00h 47m.
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 Orange County, California.
Route Weather Snapshot
Check the forecast at both ends before you head out.
Mostly Sunny
Sunny
Driving Route Map
The map below follows the saved road route between Irvine and San Dimas.
Turn-by-Turn Driving Directions
Step-by-step road directions between Irvine and San Dimas.
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1
Start on San Diego Freeway
1.4 mi · 2 min · San Diego Freeway
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2
Take the exit slight right toward University Drive, Jeffrey Road
1456 ft · 21 sec
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3
Turn left onto Jeffrey Road
951 ft · 22 sec · Jeffrey Road
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4
Take the ramp slight right toward I 405 North: Los Angeles
1228 ft · 18 sec
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5
Merge slight left onto San Diego Freeway
4.2 mi · 5 min · San Diego Freeway
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6
Take the exit slight right toward CA 55 South, CA 55 North: Freeway
1254 ft · 16 sec
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7
Keep slight right to continue on CA 55 North
2685 ft · 35 sec
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8
Merge slight left onto Costa Mesa Freeway
3.2 mi · 4 min · Costa Mesa Freeway
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9
Keep slight right to continue on Costa Mesa Freeway
2136 ft · 28 sec · Costa Mesa Freeway
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10
Take the exit slight right toward I 5 North: Santa Ana
1.1 km · 47 sec
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11
Merge slight left onto Santa Ana Freeway
2756 ft · 36 sec · Santa Ana Freeway
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12
Keep slight right to continue on Santa Ana Freeway
1.7 mi · 2 min · Santa Ana Freeway
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13
Keep slight right to continue on Santa Ana Freeway
1.3 mi · 1 min · Santa Ana Freeway
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14
Take the exit slight right toward CA 57 North: Pomona
11.9 mi · 14 min
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15
Keep slight right to continue on Orange Freeway
2.2 mi · 3 min · Orange Freeway
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16
Keep slight right to continue on Orange Freeway
2.6 mi · 3 min · Orange Freeway
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17
Merge slight left onto Pomona Freeway
1.2 mi · 1 min · Pomona Freeway
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18
Take the exit slight right toward CA 57 North
6.5 mi · 7 min
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19
Take the exit slight right toward Arrow Highway
1231 ft · 32 sec
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20
Continue on West Bonita Avenue
1.2 km · 1 min · West Bonita Avenue
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21
Arrive at your destination
0 m · 1 sec · East Bonita Avenue
Car Route Details
A richer read on the saved driving route between Irvine and San Dimas.
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.
CA 57 North
Take the exit slight right toward CA 57 North: Pomona
11.9 mi · 00h 14m
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.
Mostly Sunny leaving Irvine and Sunny near San Dimas.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Irvine to San Dimas?
The road trip is about 40.1 miles (64.5 km) and usually takes 00h 47m 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?
Placentia is a useful midpoint, sitting about 20.1 miles from Irvine and 20 miles from San Dimas.
How much longer is the road route than the straight-line distance?
The direct path is about 30.2 miles (48.6 km), while the road route adds roughly 9.9 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 4:54 PM PDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $8.19 one way or $16.38 round trip. Estimated CO2 is about 12.6 kg one way.
What should you check before leaving?
Before you leave, expect Mostly Sunny around Irvine and Sunny near San Dimas.
Stop Ideas Near Placentia
Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.
Disney's Grand Californian Hotel & Spa
City of Tustin Parks & Recreation
bamboo house
Transit and Meeting Points
Useful pickup, handoff, or rendezvous points close to Placentia.
Fullerton Transportation Center
Anaheim Regional Transportation Intermodal Center
Santa Ana Regional Transportation Center
Irvine Transportation Center
Flight Path Map
This map shows the direct air route between Irvine and San Dimas. Straight-line distance: 30.22 mi (48.64 km).
#1 Irvine
A city located in Orange County, California.
| Population | 283,700 |
| Coordinates | 33.6694600, -117.8231100 |
| Altitude | 17 |
| Country | United States |
#2 San Dimas
City in California, USA
| Population | 33,165 |
| Coordinates | 34.1066800, -117.8067300 |
| Altitude | 291 |
| Country | United States |
End: San Dimas (-117.80673, 34.10668)
Estimated Travel Time
Distance: 65 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 01h 20m |
| 40 mph (64.37 km/h) | 01h 00m |
| 50 mph (80.47 km/h) | 00h 48m |
| 60 mph (96.56 km/h) | 00h 40m |
| 70 mph (112.65 km/h) | 00h 34m |
| 80 mph (129 km/h) | 00h 30m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $5.77 | $8.19 | $16.38 |
| Mid-grade | $6.07 | $8.61 | $17.23 |
| Premium | $6.24 | $8.87 | $17.73 |
| Diesel | $7.57 | $10.75 | $21.49 |
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 · Apr 19, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.