How far is San Diego, TX from Plano, TX?
The driving distance from San Diego, TX to Plano, TX is about 435.6 miles (701 km), with a travel time of about 06h 39m by car.
- The straight-line flight distance is about 374.6 miles (602.8 km).
- For a round trip, plan for roughly 13h 18m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 6:00 AM to 7:30 AM CDT.
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 06h 39m.
Starting early still helps, but most travelers will want a longer stop or an overnight stay on a route this long.
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 Travis County, Texas, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Mostly Cloudy
Showers And Thunderstorms Likely
Driving Route Map
The map below follows the saved road route between San Diego and Plano.
Turn-by-Turn Driving Directions
Step-by-step road directions between San Diego and Plano.
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1
Start on the route
37 m · 4 sec
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2
Continue on East Gravis Avenue
8 mi · 9 min · East Gravis Avenue
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3
Turn left onto US Highway 281 Frontage Road
1072 ft · 29 sec · US Highway 281 Frontage Road
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4
Take the ramp straight
1019 ft · 25 sec
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5
Merge slight left
39.9 mi · 46 min
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6
Keep slight left to continue on Nueces Street
11.1 mi · 15 min · Nueces Street
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7
Turn right onto King David Drive
31.8 mi · 39 min · King David Drive
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8
Continue on West Main Street
1.2 km · 1 min · West Main Street
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9
Keep slight left to continue on East Main Street
71 m · 4 sec · East Main Street
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10
Continue on Helena Road
8.4 mi · 11 min · Helena Road
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11
Turn straight onto State Highway 80
23.6 mi · 26 min · State Highway 80
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12
Continue on South Nixon Avenue
1 mi · 2 min · South Nixon Avenue
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13
Continue on State Highway 80 North
30.8 mi · 35 min · State Highway 80 North
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14
Continue on US 183
10.1 mi · 12 min · US 183
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15
Continue on South Colorado Street
4.9 mi · 9 min · South Colorado Street
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16
Continue on United States Highway 183
1282 ft · 17 sec · United States Highway 183
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17
Keep slight left to continue on TX 130 Toll North: Austin, Waco
2447 ft · 35 sec
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18
Merge slight left onto Pickle Parkway
58.5 mi · 55 min · Pickle Parkway
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19
Keep slight left to continue on I 35 North: Waco
2045 ft · 50 sec
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20
Merge slight left onto Purple Heart Trail
64.7 mi · 1 hr 6 min · Purple Heart Trail
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21
Continue on South Jack Kultgen Expressway
6.6 mi · 8 min · South Jack Kultgen Expressway
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22
Continue on Purple Heart Trail
33 mi · 33 min · Purple Heart Trail
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23
Keep slight right to continue on I 35E: Dallas
56.2 mi · 58 min
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24
Take the exit slight right toward I 30 East: Texarkana, Riverfront Boulevard, Griffin Street
2094 ft · 42 sec
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25
Keep slight left to continue on I 35E North, I 30 West: Denton, Fort Worth, Texarkana
129 m · 6 sec
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26
Keep slight right to continue on I 30 East: Texarkana, Convention Center
2206 ft · 33 sec
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27
Keep slight left to continue on I 30 East: Texarkana
117 m · 6 sec
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28
Continue on East R L Thornton Freeway
1.2 km · 1 min · East R L Thornton Freeway
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29
Take the exit slight right toward I 45, US 75: Houston, McKinney
2421 ft · 46 sec
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30
Keep slight left to continue on US 75 North: McKinney
2512 ft · 1 min
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31
Keep slight right to continue on US 75 North: McKinney, Bryan Street East
1697 ft · 27 sec
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32
Merge slight left onto Julius Schepps Freeway
1.2 km · 49 sec · Julius Schepps Freeway
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33
Continue on North Central Expressway
15.2 mi · 16 min · North Central Expressway
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34
Take the exit slight right toward Plano Parkway, 15th Street
2162 ft · 53 sec
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35
Turn straight onto North Central Expressway
1.4 mi · 2 min · North Central Expressway
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36
Turn right onto East 15th Street
3101 ft · 1 min · East 15th Street
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37
Arrive at your destination
0 m · 1 sec · East 15th Street
Car Route Details
A richer read on the saved driving route between San Diego and Plano.
Long-distance drive
This route is long enough that fuel, rest stops, weather, and timing matter more than any single maneuver.
Purple Heart Trail
Merge slight left onto Purple Heart Trail
64.7 mi · 01h 06m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
Better with a longer stop
This route is long enough that most travelers will be better off planning an overnight stay or a more deliberate stop window.
Mostly Cloudy leaving San Diego and Showers And Thunderstorms Likely near Plano.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from San Diego to Plano?
The road trip is about 435.6 miles (701 km) and usually takes 06h 39m in normal driving conditions.
Is this a same-day trip or an overnight route?
This route is long enough that most travelers will be better off planning an overnight stay or a more deliberate stop window.
What is the halfway point on this route?
Manor is a useful midpoint, sitting about 206.5 miles from San Diego and 229 miles from Plano.
How much longer is the road route than the straight-line distance?
The direct path is about 374.6 miles (602.8 km), while the road route adds roughly 61 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 7:30 AM CDT. Starting early still helps, but most travelers will want a longer stop or an overnight stay on a route this long.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $58.08 one way or $116.17 round trip. Estimated CO2 is about 136.6 kg one way.
What should you check before leaving?
Before you leave, expect Mostly Cloudy around San Diego and Showers And Thunderstorms Likely near Plano.
Stop Ideas Near Manor
Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.
Transit and Meeting Points
Useful pickup, handoff, or rendezvous points close to Manor.
Austin
Taylor
San Marcos Station
Temple
Flight Path Map
This map shows the direct air route between San Diego and Plano. Straight-line distance: 374.55 mi (602.78 km).
#1 San Diego
City in Duval County, Texas, United States
| Population | 4,188 |
| Coordinates | 27.7639100, -98.2389000 |
| Altitude | 94 |
| Country | United States |
#2 Plano
The second most populous city in Texas and the center of the Dallas-Fort Worth metropolitan area.
| Population | 291,296 |
| Coordinates | 33.0198400, -96.6988900 |
| Altitude | 203 |
| Country | United States |
End: East 15th Street (-96.698873, 33.019694)
Estimated Travel Time
Distance: 701 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 14h 30m |
| 40 mph (64.37 km/h) | 10h 53m |
| 50 mph (80.47 km/h) | 08h 42m |
| 60 mph (96.56 km/h) | 07h 15m |
| 70 mph (112.65 km/h) | 06h 13m |
| 80 mph (129 km/h) | 05h 26m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.78 | $58.08 | $116.17 |
| Mid-grade | $4.25 | $65.35 | $130.71 |
| Premium | $4.59 | $70.56 | $141.13 |
| Diesel | $3.99 | $61.37 | $122.74 |
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 Texas · Apr 30, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.