How far is San Diego, CA from Fort Irwin, CA?
The driving distance from San Diego, CA to Fort Irwin, CA is about 213.4 miles (343.5 km), with a travel time of about 04h 06m by car.
- The straight-line flight distance is about 178.1 miles (286.7 km).
- For a round trip, plan for roughly 08h 12m 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 06m.
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.
The second most populous city in San Bernardino County, California.
Route Weather Snapshot
Check the forecast at both ends before you head out.
Sunny
Driving Route Map
The map below follows the saved road route between San Diego and Fort Irwin.
Turn-by-Turn Driving Directions
Step-by-step road directions between San Diego and Fort Irwin.
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1
Start on Front Street
8 m · 6 sec · Front Street
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2
Turn left onto West Broadway
3088 ft · 1 min · West Broadway
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3
Turn left onto 11th Avenue
1146 ft · 25 sec · 11th Avenue
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4
Continue on Cabrillo Parkway
2.4 mi · 3 min · Cabrillo Parkway
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5
Continue on Cabrillo Freeway
8.3 mi · 10 min · Cabrillo Freeway
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6
Keep slight left
2688 ft · 35 sec
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7
Continue on Semper Fi Highway
1.8 mi · 2 min · Semper Fi Highway
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8
Continue on Escondido Freeway
3.1 mi · 4 min · Escondido Freeway
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9
Continue on Tony Gwynn Memorial Freeway
4.6 mi · 5 min · Tony Gwynn Memorial Freeway
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10
Continue on Escondido Freeway
5.9 mi · 7 min · Escondido Freeway
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11
Keep slight left to continue on Escondido Freeway
6.9 mi · 8 min · Escondido Freeway
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12
Continue on Avocado Highway
21.9 mi · 23 min · Avocado Highway
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13
Continue on Escondido Freeway
6.3 mi · 7 min · Escondido Freeway
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14
Take the exit slight right toward I 215
1510 ft · 18 sec
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15
Continue on Escondido Freeway
34.5 mi · 40 min · Escondido Freeway
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16
Keep slight right to continue on I 215 North: San Bernardino, Barstow
2413 ft · 51 sec
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17
Merge slight left onto Riverside Freeway
5.4 mi · 6 min · Riverside Freeway
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18
Continue on San Bernardino Freeway
5.5 mi · 6 min · San Bernardino Freeway
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19
Continue on Barstow Freeway
8.9 mi · 10 min · Barstow Freeway
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20
Keep slight left
1141 ft · 14 sec
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21
Continue on Barstow and Mojave Freeway
6.8 mi · 7 min · Barstow and Mojave Freeway
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22
Continue on CHP Officer Larry L. Wetterling and San Bernardino County Sheriff's Lieutenant Alfred E. Stewart Memorial Highway
5.4 mi · 6 min · CHP Officer Larry L. Wetterling and San Bernardino County Sheriff's Lieutenant Alfred E. Stewart Memorial Highway
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23
Continue on Barstow and Mojave Freeway
45.6 mi · 49 min · Barstow and Mojave Freeway
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24
Keep slight left to continue on Barstow and Mojave Freeway
5.3 mi · 6 min · Barstow and Mojave Freeway
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25
Take the exit slight right toward Fort Irwin Road
1217 ft · 35 sec
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26
Turn left onto Fort Irwin Road
22.2 mi · 27 min · Fort Irwin Road
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27
Keep slight right to continue on Truck Bypass
1.4 mi · 3 min · Truck Bypass
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28
Turn left
38 m · 8 sec
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29
Turn right onto Fort Irwin Road
6.4 mi · 9 min · Fort Irwin Road
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30
Continue on South Loop Road
1.5 mi · 3 min · South Loop Road
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31
Turn left onto 3rd Street
3179 ft · 2 min · 3rd Street
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32
Arrive at your destination
0 m · 1 sec · 3rd Street
Car Route Details
A richer read on the saved driving route between San Diego and Fort Irwin.
Highway-focused drive
Most of the mileage stays on named highways, so the important moments are ramps, exits, merges, and the final local approach.
Barstow and Mojave Freeway
Continue on Barstow and Mojave Freeway
45.6 mi · 00h 49m
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.
Sunny leaving San Diego and Sunny near Fort Irwin.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from San Diego to Fort Irwin?
The road trip is about 213.4 miles (343.5 km) and usually takes 04h 06m 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?
San Bernardino is a useful midpoint, sitting about 106.8 miles from San Diego and 106.6 miles from Fort Irwin.
How much longer is the road route than the straight-line distance?
The direct path is about 178.1 miles (286.7 km), while the road route adds roughly 35.3 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 8:48 AM PDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $47.15 one way or $94.29 round trip. Estimated CO2 is about 66.9 kg one way.
What should you check before leaving?
Before you leave, expect Sunny around San Diego and Sunny near Fort Irwin.
Stop Ideas Near San Bernardino
Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.
Bear Springs Hotel
City Hall
San Bernardino County Land Use
Jurupa Valley City Hall
Transit and Meeting Points
Useful pickup, handoff, or rendezvous points close to San Bernardino.
San Bernardino Santa Fe Depot
Riverside–Downtown
Moreno Valley, California
Ontario
Flight Path Map
This map shows the direct air route between San Diego and Fort Irwin. Straight-line distance: 178.12 mi (286.65 km).
#1 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 |
#2 Fort Irwin
Situated in the high Mojave Desert of San Bernardino County at an elevation of 2487 feet, this installation occupies vast, rugged terrain.
| Population | 0 |
| Coordinates | 35.2627500, -116.6847500 |
| Altitude | 758 |
| Country | United States |
End: Fort Irwin (-116.68475, 35.26275)
Estimated Travel Time
Distance: 343 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 07h 06m |
| 40 mph (64.37 km/h) | 05h 20m |
| 50 mph (80.47 km/h) | 04h 16m |
| 60 mph (96.56 km/h) | 03h 33m |
| 70 mph (112.65 km/h) | 03h 02m |
| 80 mph (129 km/h) | 02h 39m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $6.26 | $47.15 | $94.29 |
| Mid-grade | $6.50 | $48.94 | $97.87 |
| Premium | $6.69 | $50.37 | $100.74 |
| Diesel | $8.41 | $63.35 | $126.70 |
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