How far is Diamond Bar, CA from Los Angeles, CA?
The driving distance from Diamond Bar, CA to Los Angeles, CA is about 29 miles (46.7 km), with a travel time of about 00h 34m by car.
- The straight-line flight distance is about 24.9 miles (40 km).
- For a round trip, plan for roughly 01h 09m 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 34m.
This is a short drive, so your comfort window is wide. Traffic and current weather matter more than the clock.
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.
City in Los Angeles County, California, United States
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 Diamond Bar and Los Angeles.
Turn-by-Turn Driving Directions
Step-by-step road directions between Diamond Bar and Los Angeles.
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1
Start on the route
12 m · 5 sec
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2
At the end of the road, turn right onto Sunset Crossing Road
681 ft · 20 sec · Sunset Crossing Road
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3
Take the ramp right toward CA 57 South, CA 60 West: Santa Ana, Los Angeles
967 ft · 24 sec
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4
Merge slight left onto Orange Freeway
1.1 km · 47 sec · Orange Freeway
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5
Merge slight left onto Pomona Freeway
1.3 mi · 1 min · Pomona Freeway
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6
Keep slight right to continue on Orange Freeway
123 m · 5 sec · Orange Freeway
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7
Keep slight right to continue on CA 60 Alt West: Brea Canyon Road
2.6 mi · 3 min
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8
Keep slight right to continue on Pomona Freeway
1.8 mi · 2 min · Pomona Freeway
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9
Keep slight right to continue on Pomona Freeway
2.5 mi · 3 min · Pomona Freeway
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10
Keep slight right to continue on Pomona Freeway
2 mi · 2 min · Pomona Freeway
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11
Keep slight right to continue on Pomona Freeway
13.9 mi · 16 min · Pomona Freeway
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12
Take the exit slight right toward US 101 North, I 5 North: Los Angeles, Sacramento
801 ft · 20 sec
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13
Keep slight left to continue on US 101 North: Los Angeles
646 ft · 16 sec
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14
Keep slight left to continue on US 101 North: Los Angeles
2490 ft · 1 min
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15
Merge slight left onto Santa Ana Freeway
2 mi · 3 min · Santa Ana Freeway
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16
Take the exit slight right toward Alameda Street, Union Station
798 ft · 19 sec
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17
Continue on East Arcadia Street
988 ft · 32 sec · East Arcadia Street
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18
Turn left onto North Los Angeles Street
1696 ft · 45 sec · North Los Angeles Street
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19
Turn right onto East 1st Street
141 m · 18 sec · East 1st Street
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20
Arrive at your destination
0 m · 1 sec · West 1st Street
Car Route Details
A richer read on the saved driving route between Diamond Bar and Los Angeles.
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.
Pomona Freeway
Keep slight right to continue on Pomona Freeway
13.9 mi · 00h 16m
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.
Mostly Sunny leaving Diamond Bar and Sunny near Los Angeles.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Diamond Bar to Los Angeles?
The road trip is about 29 miles (46.7 km) and usually takes 00h 34m 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?
South El Monte is a useful midpoint, sitting about 14.3 miles from Diamond Bar and 14.7 miles from Los Angeles.
How much longer is the road route than the straight-line distance?
The direct path is about 24.9 miles (40 km), while the road route adds roughly 4.1 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 7:20 PM PDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $5.88 one way or $11.77 round trip. Estimated CO2 is about 9.1 kg one way.
What should you check before leaving?
Before you leave, expect Mostly Sunny around Diamond Bar and Sunny near Los Angeles.
Stop Ideas Near South El Monte
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 of South El Monte City Hall
City of Los Angeles
Transit and Meeting Points
Useful pickup, handoff, or rendezvous points close to South El Monte.
Pasadena, California
Los Angeles Union Station
Glendale Transportation Center
Fullerton Transportation Center
Flight Path Map
This map shows the direct air route between Diamond Bar and Los Angeles. Straight-line distance: 24.86 mi (40.01 km).
#1 Diamond Bar
A city in Los Angeles County, California.
| Population | 54,880 |
| Coordinates | 34.0286200, -117.8103400 |
| Altitude | 212 |
| Country | United States |
#2 Los Angeles
The second most populous city in the United States and the center of the Los Angeles metropolitan area.
| Population | 3,970,219 |
| Coordinates | 34.0522300, -118.2436800 |
| Altitude | 89 |
| Country | United States |
End: West 1st Street (-118.243569, 34.052341)
Estimated Travel Time
Distance: 47 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 00h 58m |
| 40 mph (64.37 km/h) | 00h 43m |
| 50 mph (80.47 km/h) | 00h 34m |
| 60 mph (96.56 km/h) | 00h 29m |
| 70 mph (112.65 km/h) | 00h 24m |
| 80 mph (129 km/h) | 00h 21m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $5.77 | $5.88 | $11.77 |
| Mid-grade | $6.07 | $6.19 | $12.37 |
| Premium | $6.24 | $6.37 | $12.74 |
| Diesel | $7.57 | $7.72 | $15.44 |
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.