How far is San Antonio, TX from Castroville, TX?
The driving distance from San Antonio, TX to Castroville, TX is about 26 miles (41.9 km), with a travel time of about 00h 32m by car.
- The straight-line flight distance is about 23.7 miles (38.1 km).
- For a round trip, plan for roughly 01h 04m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 7:00 AM to 7:00 PM CDT.
Reverse, save, or send this route
This is an easy same-day return drive. Copy the route link, send it to another device, or print a clean version before you head out.
This is an easy same-day return drive.
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 00h 32m.
This is a short drive, so your comfort window is wide. Traffic and current weather matter more than the clock.
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 Bexar County, Texas, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Slight Chance Rain Showers
Chance Rain Showers
Driving Route Map
The map below follows the saved road route between San Antonio and Castroville.
Turn-by-Turn Driving Directions
Step-by-step road directions between San Antonio and Castroville.
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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
155 m · 13 sec · West Market Street
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3
Turn right onto South Saint Mary's Street
3176 ft · 1 min · South Saint Mary's Street
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4
Turn right onto South Alamo Street
3206 ft · 1 min · South Alamo Street
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5
Turn left onto Probandt Street
1.6 km · 2 min · Probandt Street
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6
Take the ramp slight right toward I 10 West
1470 ft · 36 sec
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7
Merge slight left onto Jose Lopez Freeway
3052 ft · 40 sec · Jose Lopez Freeway
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8
Continue on Cleto Rodriguez Freeway
12.5 mi · 14 min · Cleto Rodriguez Freeway
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9
Continue on West US Highway 90
10.2 mi · 12 min · West US Highway 90
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10
Turn right onto Angelo Street
585 ft · 28 sec · Angelo Street
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11
Turn right onto Paris Street
26 m · 4 sec · Paris Street
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12
Arrive at your destination
0 m · 1 sec · Paris Street
Car Route Details
A richer read on the saved driving route between San Antonio and Castroville.
Turn-heavy local drive
The route has frequent decision points for its length, so lane choice and turn timing will matter more than cruising speed.
Cleto Rodriguez Freeway
Continue on Cleto Rodriguez Freeway
12.5 mi · 00h 14m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
A short regional drive
This route is short enough to handle as a quick errand, commute, or easy same-day return without much planning overhead.
Slight Chance Rain Showers leaving San Antonio and Chance Rain Showers near Castroville.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from San Antonio to Castroville?
The road trip is about 26 miles (41.9 km) and usually takes 00h 32m in normal driving conditions.
Is this a same-day trip or an overnight route?
This route is short enough to handle as a quick errand, commute, or easy same-day return without much planning overhead.
What is the halfway point on this route?
Von Ormy is a useful midpoint, sitting about 13 miles from San Antonio and 13 miles from Castroville.
How much longer is the road route than the straight-line distance?
The direct path is about 23.7 miles (38.1 km), while the road route adds roughly 2.3 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 7:00 AM to 7:00 PM CDT. If you want a more comfortable same-day return, try to leave by 7:26 PM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $3.48 one way or $6.95 round trip. Estimated CO2 is about 8.2 kg one way.
What should you check before leaving?
Before you leave, expect Slight Chance Rain Showers around San Antonio and Chance Rain Showers near Castroville.
Stop Ideas Near Von Ormy
Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.
Piazza Italia Park
City Hall San Antonio
Municipal Plaza
Transit and Meeting Points
Useful pickup, handoff, or rendezvous points close to Von Ormy.
San Antonio Station
San Marcos Station
Flight Path Map
This map shows the direct air route between San Antonio and Castroville. Straight-line distance: 23.66 mi (38.07 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 Castroville
Town in the U.
| Population | 3,199 |
| Coordinates | 29.3557900, -98.8786400 |
| Altitude | 231 |
| Country | United States |
End: Castroville (-98.87864, 29.35579)
Estimated Travel Time
Distance: 42 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 00h 52m |
| 40 mph (64.37 km/h) | 00h 39m |
| 50 mph (80.47 km/h) | 00h 31m |
| 60 mph (96.56 km/h) | 00h 26m |
| 70 mph (112.65 km/h) | 00h 22m |
| 80 mph (129 km/h) | 00h 19m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.78 | $3.48 | $6.95 |
| Mid-grade | $4.25 | $3.91 | $7.82 |
| Premium | $4.59 | $4.22 | $8.45 |
| Diesel | $3.99 | $3.67 | $7.35 |
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 19, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.