How far is San Antonio, TX from San Diego, TX?
The driving distance from San Antonio, TX to San Diego, TX is about 133 miles (214 km), with a travel time of about 02h 22m by car.
- The straight-line flight distance is about 115.8 miles (186.3 km).
- For a round trip, plan for roughly 04h 44m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 8:00 AM to 10:00 AM CDT.
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 02h 22m.
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.
City in Live Oak County, Texas, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Slight Chance Showers And Thunderstorms
Mostly Cloudy
Driving Route Map
The map below follows the saved road route between San Antonio and San Diego.
Turn-by-Turn Driving Directions
Step-by-step road directions between San Antonio and San Diego.
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1
Start on Dolorosa Street
44 m · 5 sec · Dolorosa Street
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2
Continue on West Market Street
1893 ft · 42 sec · West Market Street
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3
Continue on East Market Street
2143 ft · 41 sec · East Market Street
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4
Turn right onto Tower of the Americas Way
957 ft · 21 sec · Tower of the Americas Way
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5
Take the ramp slight left toward I 37 South, US 281 South
1374 ft · 34 sec
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6
Merge slight left onto William J Bordelon Freeway
1.4 mi · 2 min · William J Bordelon Freeway
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7
Continue on Lucian Adams Freeway
66.8 mi · 1 hr 8 min · Lucian Adams Freeway
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8
Take the exit slight right toward US 281 South
15.2 mi · 19 min
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9
Keep slight left to continue on South Nueces Street
40 mi · 41 min · South Nueces Street
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10
Take the exit slight right toward TX 44, TX 359: Alice, San Diego
1833 ft · 49 sec
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11
Turn right
7.9 mi · 9 min
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12
Turn left onto South Doctor E.E. Dunlap Street
38 m · 10 sec · South Doctor E.E. Dunlap Street
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13
Take the ramp sharp left
11 m · 1 sec
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14
Arrive at your destination
0 m · 1 sec
Car Route Details
A richer read on the saved driving route between San Antonio 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.
Lucian Adams Freeway
Continue on Lucian Adams Freeway
66.8 mi · 01h 08m
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.
Slight Chance Showers And Thunderstorms leaving San Antonio and Mostly Cloudy near San Diego.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from San Antonio to San Diego?
The road trip is about 133 miles (214 km) and usually takes 02h 22m 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?
Three Rivers is a useful midpoint, sitting about 66.7 miles from San Antonio and 66.4 miles from San Diego.
How much longer is the road route than the straight-line distance?
The direct path is about 115.8 miles (186.3 km), while the road route adds roughly 17.2 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 CDT. If you want a more comfortable same-day return, try to leave by 1:46 PM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $17.72 one way or $35.45 round trip. Estimated CO2 is about 41.7 kg one way.
What should you check before leaving?
Before you leave, expect Slight Chance Showers And Thunderstorms around San Antonio and Mostly Cloudy near San Diego.
Stop Ideas Near Three Rivers
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 Three Rivers.
San Antonio Station
Flight Path Map
This map shows the direct air route between San Antonio and San Diego. Straight-line distance: 115.74 mi (186.27 km).
#1 San Antonio
The seventh most populous city in the United States and the center of the San Antonio metropolitan area.
| Population | 1,567,118 |
| Coordinates | 29.4241200, -98.4936300 |
| Altitude | 198 |
| Country | United States |
#2 San Diego
City in Duval County, Texas, United States
| Population | 4,188 |
| Coordinates | 27.7639100, -98.2389000 |
| Altitude | 94 |
| Country | United States |
End: San Diego (-98.2389, 27.76391)
Estimated Travel Time
Distance: 214 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 04h 25m |
| 40 mph (64.37 km/h) | 03h 19m |
| 50 mph (80.47 km/h) | 02h 39m |
| 60 mph (96.56 km/h) | 02h 12m |
| 70 mph (112.65 km/h) | 01h 53m |
| 80 mph (129 km/h) | 01h 39m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.78 | $17.72 | $35.45 |
| Mid-grade | $4.25 | $19.94 | $39.88 |
| Premium | $4.59 | $21.53 | $43.06 |
| Diesel | $3.99 | $18.73 | $37.45 |
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.