How far is Rancho Cucamonga, CA from San Diego, CA?
The driving distance from Rancho Cucamonga, CA to San Diego, CA is about 115.3 miles (185.5 km), with a travel time of about 01h 53m by car.
- The straight-line flight distance is about 99.2 miles (159.7 km).
- For a round trip, plan for roughly 03h 47m 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 53m.
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.
The most populous city in southwestern Riverside County, California.
Route Weather Snapshot
Check the forecast at both ends before you head out.
Sunny
Patchy Fog then Sunny
Driving Route Map
The map below follows the saved road route between Rancho Cucamonga and San Diego.
Turn-by-Turn Driving Directions
Step-by-step road directions between Rancho Cucamonga and San Diego.
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1
Start on the route
56 m · 16 sec
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2
At the end of the road, turn right
27 m · 12 sec
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3
Turn left onto Archibald Avenue
2.6 mi · 5 min · Archibald Avenue
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4
Take the ramp slight left toward I 10 East: San Bernardino
2099 ft · 53 sec
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5
Merge slight left onto San Bernardino Freeway
2.2 mi · 2 min · San Bernardino Freeway
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6
Take the exit slight right toward I 15 South: San Diego
2267 ft · 55 sec
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7
Merge slight left onto Ontario Freeway
3.1 mi · 4 min · Ontario Freeway
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8
Keep slight right to continue on Ontario Freeway
2066 ft · 27 sec · Ontario Freeway
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9
Continue on Corona Freeway
2.4 mi · 3 min · Corona Freeway
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10
Take the exit slight right toward Limonite Avenue
1819 ft · 48 sec
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11
Turn right onto Limonite Avenue
2393 ft · 50 sec · Limonite Avenue
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12
Turn left onto Hamner Avenue
2.6 mi · 5 min · Hamner Avenue
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13
Turn left onto 6th Street
108 m · 14 sec · 6th Street
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14
Take the ramp right toward I 15 South: San Diego
1646 ft · 42 sec
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15
Merge slight left onto Corona Freeway
18.3 mi · 20 min · Corona Freeway
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16
Continue on Temecula Valley Freeway
19.1 mi · 20 min · Temecula Valley Freeway
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17
Merge slight right onto Escondido Freeway
5.8 mi · 6 min · Escondido Freeway
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18
Continue on Avocado Highway
21.9 mi · 24 min · Avocado Highway
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19
Continue on Escondido Freeway
3.4 mi · 4 min · Escondido Freeway
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20
Keep slight right to continue on Escondido Freeway
8.7 mi · 10 min · Escondido Freeway
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21
Continue on Tony Gwynn Memorial Freeway
4.5 mi · 5 min · Tony Gwynn Memorial Freeway
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22
Continue on Escondido Freeway
3.1 mi · 4 min · Escondido Freeway
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23
Continue on Semper Fi Highway
2.2 mi · 3 min · Semper Fi Highway
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24
Take the exit slight right toward CA 163 South
1.2 km · 52 sec
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25
Continue on Cabrillo Freeway
8.2 mi · 9 min · Cabrillo Freeway
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26
Continue on Cabrillo Parkway
1.5 mi · 2 min · Cabrillo Parkway
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27
Continue on Cabrillo Parkway
1.3 km · 1 min · Cabrillo Parkway
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28
Continue on 10th Avenue
1507 ft · 42 sec · 10th Avenue
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29
Turn right onto Broadway
2811 ft · 1 min · Broadway
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30
Turn left onto Front Street
8 m · 1 sec · Front Street
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31
Arrive at your destination
0 m · 1 sec · Front Street
Car Route Details
A richer read on the saved driving route between Rancho Cucamonga 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.
Avocado Highway
Continue on Avocado Highway
21.9 mi · 00h 24m
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 Rancho Cucamonga and Patchy Fog then Sunny near San Diego.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Rancho Cucamonga to San Diego?
The road trip is about 115.3 miles (185.5 km) and usually takes 01h 53m 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?
Temecula is a useful midpoint, sitting about 57.4 miles from Rancho Cucamonga and 57.9 miles from San Diego.
How much longer is the road route than the straight-line distance?
The direct path is about 99.2 miles (159.7 km), while the road route adds roughly 16.1 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 8:00 AM to 10:00 AM PDT. If you want a more comfortable same-day return, try to leave by 2:42 PM PDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $23.48 one way or $46.96 round trip. Estimated CO2 is about 36.2 kg one way.
What should you check before leaving?
Before you leave, expect Sunny around Rancho Cucamonga and Patchy Fog then Sunny near San Diego.
Stop Ideas Near Temecula
Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.
City of Wildomar
Superior Court of California, County of Riverside - Southwest Justice Center
City Of Temecula
Transit and Meeting Points
Useful pickup, handoff, or rendezvous points close to Temecula.
Sun City, California
Hemet (West Florida Ave), California
Hemet (Devonshire Ave), California
Perris, California
Flight Path Map
This map shows the direct air route between Rancho Cucamonga and San Diego. Straight-line distance: 99.21 mi (159.67 km).
#1 Rancho Cucamonga
The sixth most populous city in San Bernardino County, California.
| Population | 178,849 |
| Coordinates | 34.1064000, -117.5931100 |
| Altitude | 368 |
| 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: 186 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 03h 50m |
| 40 mph (64.37 km/h) | 02h 52m |
| 50 mph (80.47 km/h) | 02h 18m |
| 60 mph (96.56 km/h) | 01h 55m |
| 70 mph (112.65 km/h) | 01h 38m |
| 80 mph (129 km/h) | 01h 26m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $5.77 | $23.48 | $46.96 |
| Mid-grade | $6.07 | $24.69 | $49.38 |
| Premium | $6.24 | $25.41 | $50.82 |
| Diesel | $7.57 | $30.80 | $61.60 |
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 · Aug 29, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.