How far is San Diego, TX from Austin, TX?
The driving distance from San Diego, TX to Austin, TX is about 207.2 miles (333.5 km), with a travel time of about 03h 18m by car.
- The straight-line flight distance is about 175.5 miles (282.5 km).
- For a round trip, plan for roughly 06h 36m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 6:00 AM to 8:00 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 03h 18m.
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.
Human settlement in Atascosa County, Texas, United States of America
Route Weather Snapshot
Check the forecast at both ends before you head out.
Mostly Cloudy
Chance Showers And Thunderstorms
Driving Route Map
The map below follows the saved road route between San Diego and Austin.
Turn-by-Turn Driving Directions
Step-by-step road directions between San Diego and Austin.
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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
14.7 mi · 19 min · Nueces Street
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7
Continue straight
1199 ft · 16 sec
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8
Take the exit straight
60.8 mi · 1 hr 2 min
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9
Take the exit slight right toward I 410, TX 130, US 281 South
971 ft · 24 sec
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10
Keep slight right to continue on I 410 North, TX 130 North
2383 ft · 58 sec
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11
Merge slight left onto Connally Loop
10.6 mi · 12 min · Connally Loop
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12
Merge slight left onto North Pan Am Expressway
2.8 mi · 3 min · North Pan Am Expressway
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13
Keep slight left to continue on North Pan Am Expressway
7.4 mi · 8 min · North Pan Am Expressway
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14
Continue on Purple Heart Trail
11.9 mi · 13 min · Purple Heart Trail
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15
Continue on Interstate Highway 35
1.9 mi · 2 min · Interstate Highway 35
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16
Continue on Purple Heart Trail
46.7 mi · 51 min · Purple Heart Trail
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17
Take the exit slight right toward 6th - 12th Streets
665 ft · 24 sec
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18
Turn left onto East 6th Street
2863 ft · 1 min · East 6th Street
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19
Turn left onto Congress Avenue
109 m · 18 sec · Congress Avenue
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20
Turn left onto East 5th Street
8 m · 1 sec · East 5th Street
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21
Arrive at your destination
0 m · 1 sec · East 5th Street
Car Route Details
A richer read on the saved driving route between San Diego and Austin.
Interchange-aware route
The drive includes several ramps, exits, or merges, so checking the next few maneuvers before busy interchanges is useful.
Nueces Street
Take the exit straight
60.8 mi · 01h 02m
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.
Mostly Cloudy leaving San Diego and Chance Showers And Thunderstorms near Austin.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from San Diego to Austin?
The road trip is about 207.2 miles (333.5 km) and usually takes 03h 18m 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?
Pleasanton is a useful midpoint, sitting about 103.6 miles from San Diego and 103.6 miles from Austin.
How much longer is the road route than the straight-line distance?
The direct path is about 175.5 miles (282.5 km), while the road route adds roughly 31.7 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 CDT. If you want a more comfortable same-day return, try to leave by 10:24 AM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $27.62 one way or $55.25 round trip. Estimated CO2 is about 65 kg one way.
What should you check before leaving?
Before you leave, expect Mostly Cloudy around San Diego and Chance Showers And Thunderstorms near Austin.
Stop Ideas Near Pleasanton
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 Pleasanton.
San Antonio Station
San Marcos Station
Flight Path Map
This map shows the direct air route between San Diego and Austin. Straight-line distance: 175.53 mi (282.49 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 Austin
The eleventh most populous city in the United States and the center of the Austin metropolitan area.
| Population | 995,484 |
| Coordinates | 30.2671500, -97.7430600 |
| Altitude | 149 |
| Country | United States |
End: East 5th Street (-97.743073, 30.267115)
Estimated Travel Time
Distance: 333 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 06h 54m |
| 40 mph (64.37 km/h) | 05h 10m |
| 50 mph (80.47 km/h) | 04h 08m |
| 60 mph (96.56 km/h) | 03h 27m |
| 70 mph (112.65 km/h) | 02h 57m |
| 80 mph (129 km/h) | 02h 35m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.78 | $27.62 | $55.25 |
| Mid-grade | $4.25 | $31.08 | $62.16 |
| Premium | $4.59 | $33.56 | $67.12 |
| Diesel | $3.99 | $29.19 | $58.38 |
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.