How far is Lamont, CA from San Diego, CA?
The driving distance from Lamont, CA to San Diego, CA is about 228.9 miles (368.3 km), with a travel time of about 04h 08m by car.
- The straight-line flight distance is about 202.3 miles (325.6 km).
- For a round trip, plan for roughly 08h 16m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 6:00 AM to 8:00 AM PDT.
Reverse, save, or send this route
This drive is better planned with a longer stop or an overnight stay. Copy the route link, send it to another device, or print a clean version before you head out.
This drive is better planned with a longer stop or an overnight stay.
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 04h 08m.
An early departure helps you fit a real stop into the day without turning the return into a late-night drive.
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.
Chance Light Rain then Partly Sunny
Chance Rain Showers
Driving Route Map
The map below follows the saved road route between Lamont and San Diego.
Turn-by-Turn Driving Directions
Step-by-step road directions between Lamont and San Diego.
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1
Start on Hall Road
7 m · 3 sec · Hall Road
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2
Turn left onto Main Street
1.5 mi · 2 min · Main Street
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3
Continue on Weedpatch Highway
1.6 km · 1 min · Weedpatch Highway
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4
Enter the roundabout and take exit 2 toward Weedpatch Highway
50 m · 3 sec · Weedpatch Highway
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5
Exit the roundabout onto Weedpatch Highway
1.6 km · 1 min · Weedpatch Highway
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6
Enter the roundabout and take exit 1 toward East Bear Mountain Boulevard
8 m · 1 sec · East Bear Mountain Boulevard
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7
Exit the roundabout onto East Bear Mountain Boulevard
5 mi · 7 min · East Bear Mountain Boulevard
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8
Turn left onto South Union Avenue
2.4 mi · 3 min · South Union Avenue
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9
Take the ramp straight toward 99
2861 ft · 35 sec
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10
Merge slight left onto Golden State Freeway
10.5 mi · 11 min · Golden State Freeway
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11
Keep slight left to continue on Golden State Freeway
58.2 mi · 1 hr 7 min · Golden State Freeway
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12
Keep slight left to continue on Golden State Freeway
4.1 mi · 5 min · Golden State Freeway
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13
Keep slight right to continue on I 405 South
1354 ft · 18 sec
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14
Keep slight left
24.7 mi · 29 min
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15
Keep slight left to continue on Golden State Freeway
1.3 mi · 2 min · Golden State Freeway
-
16
Merge slight left onto Santa Ana Freeway
25.7 mi · 30 min · Santa Ana Freeway
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17
Keep slight right to continue on Santa Ana Freeway
1241 ft · 16 sec · Santa Ana Freeway
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18
Take the exit slight right toward Broadway, Main Street, Santa Ana
1.3 km · 57 sec
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19
Keep slight left
788 ft · 10 sec
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20
Keep slight left to continue on I 5 South
981 ft · 13 sec
-
21
Merge slight left onto Santa Ana Freeway
1.3 km · 54 sec · Santa Ana Freeway
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22
Keep slight right to continue on Santa Ana Freeway
1.2 km · 52 sec · Santa Ana Freeway
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23
Keep slight right to continue on Santa Ana Freeway
1.2 mi · 1 min · Santa Ana Freeway
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24
Take the exit slight right toward Newport Avenue
1.2 km · 1 min
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25
Turn right onto Newport Avenue
1943 ft · 44 sec · Newport Avenue
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26
Turn left onto Walnut Avenue
2.2 mi · 4 min · Walnut Avenue
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27
Turn left onto Jamboree Road
2595 ft · 38 sec · Jamboree Road
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28
Take the exit slight right toward I 5 South
1479 ft · 21 sec
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29
Merge slight left onto Santa Ana Freeway
5.5 mi · 6 min · Santa Ana Freeway
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30
Keep slight left to continue on Santa Ana Freeway
1.3 km · 56 sec · Santa Ana Freeway
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31
Merge slight right onto San Diego Freeway
76.5 mi · 1 hr 29 min · San Diego Freeway
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32
Take the exit slight right toward Front Street, Civic Center, 2nd Avenue
1164 ft · 28 sec
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33
Keep slight right to continue on Front Street, Civic Center
592 ft · 15 sec
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34
Continue on Front Street
2662 ft · 2 min · Front Street
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35
Arrive at your destination
0 m · 1 sec · Front Street
Car Route Details
A richer read on the saved driving route between Lamont and San Diego.
Highway-focused drive
Most of the mileage stays on named highways, so the important moments are ramps, exits, merges, and the final local approach.
San Diego Freeway
Merge slight right onto San Diego Freeway
76.5 mi · 01h 29m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
A longer out-and-back drive
This is still possible in one day, but it becomes a long driving day. Leaving early and planning your stop window matters more here.
Chance Light Rain then Partly Sunny leaving Lamont and Chance Rain Showers near San Diego.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Lamont to San Diego?
The road trip is about 228.9 miles (368.3 km) and usually takes 04h 08m in normal driving conditions.
Is this a same-day trip or an overnight route?
This is still possible in one day, but it becomes a long driving day. Leaving early and planning your stop window matters more here.
What is the halfway point on this route?
Commerce is a useful midpoint, sitting about 114.1 miles from Lamont and 114.7 miles from San Diego.
How much longer is the road route than the straight-line distance?
The direct path is about 202.3 miles (325.6 km), while the road route adds roughly 26.6 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 6:00 AM to 8:00 AM PDT. If you want a more comfortable same-day return, try to leave by 8:44 AM PDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $46.61 one way or $93.23 round trip. Estimated CO2 is about 71.8 kg one way.
What should you check before leaving?
Before you leave, expect Chance Light Rain then Partly Sunny around Lamont and Chance Rain Showers near San Diego.
Stop Ideas Near Commerce
Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.
Bell Gardens Inn Los Angeles
City of South El Monte City Hall
City of Los Angeles
City Of El Monte Public Works Department
Transit and Meeting Points
Useful pickup, handoff, or rendezvous points close to Commerce.
Los Angeles Union Station
Glendale Transportation Center
Pasadena, California
Torrance, CA
Flight Path Map
This map shows the direct air route between Lamont and San Diego. Straight-line distance: 202.33 mi (325.62 km).
#1 Lamont
Census-designated place in Kern County, California
| Population | 15,120 |
| Coordinates | 35.2596800, -118.9142700 |
| Altitude | 123 |
| Country | United States |
#2 San Diego
The eighth most populous city in the United States and the center of the San Diego metropolitan area.
| Population | 1,422,420 |
| Coordinates | 32.7157100, -117.1647200 |
| Altitude | 20 |
| Country | United States |
End: Front Street (-117.164717, 32.71571)
Estimated Travel Time
Distance: 368 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 07h 37m |
| 40 mph (64.37 km/h) | 05h 43m |
| 50 mph (80.47 km/h) | 04h 34m |
| 60 mph (96.56 km/h) | 03h 48m |
| 70 mph (112.65 km/h) | 03h 16m |
| 80 mph (129 km/h) | 02h 51m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $5.77 | $46.61 | $93.23 |
| Mid-grade | $6.07 | $49.01 | $98.03 |
| Premium | $6.24 | $50.44 | $100.89 |
| Diesel | $7.57 | $61.14 | $122.28 |
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 · May 05, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.