Origin
Castroville, TX
Morning in Castroville on Sunday
Local time
8:41 AM
CDT
Current temp
62°F
Unavailable
Live forecast
Trip from Castroville, TX to San Antonio, TX
Compiled and reviewed by the US Trip Planner planning team at COD Solutions Oy · Last reviewed Apr 19, 2026 · Editorial standards
Drive Time
31m
Distance
25.4 mi
41 km
Drive Score
6/10
Good drive
Same Day?
Yes, doable
Fuel Cost
$4
one way
EV Charging
Unknown
Best Time to Leave
4 AM
0h 28m
★
6 AM
0h 31m
8 AM
0h 36m
10 AM
0h 33m
12 PM
0h 32m
3 PM
0h 33m
5 PM
0h 36m
8 PM
0h 29m
Estimated drive times based on typical traffic patterns. Actual times may vary with weather, construction, and real-time conditions.
Castroville, TX
Wikimedia Commons
San Antonio, TX
Wikimedia Commons
Trip Overview
Traveling from Castroville to San Antonio is a short, straightforward journey that spans just 25.6 miles. You can expect to complete this drive in approximately 28 minutes, making it a perfect day trip that requires no overnight stay. Your path takes you through the Great Plains region of Texas, utilizing a combination of Angelo Street, Highway 90 West, and the Cleto Rodriguez Freeway. With an estimated fuel cost of only $4, it is a very budget-friendly commute. Because the route is so quick, you have plenty of flexibility to plan your departure time around San Antonio traffic patterns rather than worrying about long-distance fatigue.
Main Roads
| Road | Distance | Duration |
|---|---|---|
| Cleto Rodriguez Freeway | 12.2 mi | 13m |
| US Highway 90 West | 10.2 mi | 11m |
| South Pan Am Expressway | 1 mi | 1m |
| South Santa Rosa Street | 0.5 mi | <1m |
| South Laredo Street | 0.4 mi | <1m |
| Dolorosa Street | 0.3 mi | <1m |
| Angelo Street | 0.1 mi | <1m |
| Paris Street | <0.1 mi | <1m |
Longest stretch:
Cleto Rodriguez Freeway
— 12.2 mi, about 13m
Turn-by-Turn Driving Directions
Step-by-step road directions between Castroville, TX and San Antonio, TX.
1
Start on Paris Street
84 ft
·
9 sec
·
Paris Street
2
Turn left onto Angelo Street
0.1 mi
·
27 sec
·
Angelo Street
3
Turn left onto US 90
10 mi
·
11 min
·
US Highway 90 West
4
Continue on US 90
12 mi
·
13 min
·
Cleto Rodriguez Freeway
Use the straight / slight right lanes.
5
Take the exit
0.2 mi
·
30 sec
Exit 572
Toward I 10 West, I 35, US 87 North: El Paso, Austin, Laredo
Use the slight right lane.
6
Keep slight left at fork
0.4 mi
·
50 sec
Toward I 10 West, I 35 North, US 87 North: El Paso, Austin
Use the slight left / slight right lanes.
7
Merge onto I 10; I 35; US 87
0.5 mi
·
34 sec
·
South Pan Am Expressway
Use the straight / slight right lanes.
8
Keep slight left at fork onto I 35
0.5 mi
·
40 sec
·
South Pan Am Expressway
9
Take the exit
0.1 mi
·
15 sec
Exit 155A
Toward Spur 536: South Alamo Street
Use the straight / slight right lanes.
10
Turn straight onto South Laredo Street
0.4 mi
·
45 sec
·
South Laredo Street
Use the straight / left lanes.
11
Continue on South Santa Rosa Street
0.5 mi
·
51 sec
·
South Santa Rosa Street
12
Turn right onto Dolorosa Street
0.3 mi
·
32 sec
·
Dolorosa Street
13
Arrive at destination
Dolorosa Street
Heads-up: tricky spots
5 of 95 decision points cluster between mile 0 and 24.2 — GPS handles the exact turns, but know they're coming. Your lane choice matters more than the turn itself.
4
0 mi into trip
|
~0m in
|
Angelo Street
Turn left onto Angelo Street
Navigation decision point
8
22.5 mi into trip
|
~26m in
Take the exit toward I 10 West, I 35, US 87 North: El Paso, Austin, Laredo
Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one
Use the slight right lane.
Exit 572
Toward I 10 West, I 35, US 87 North: El Paso, A...
8
22.8 mi into trip
|
~26m in
Keep slight left at fork toward I 10 West, I 35 North, US 87 North: El Paso, Austin
Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one
Use the slight left / slight right lanes.
Toward I 10 West, I 35 North, US 87 North: El P...
5
23.2 mi into trip
|
~27m in
|
I 10; I 35; US 87 / South Pan Am Expressway
Merge onto I 10; I 35; US 87 / South Pan Am Expressway
Merge point - match speed before joining. Lane positioning matters here
Use the straight / slight right lanes.
7
24.2 mi into trip
|
~28m in
Take the exit toward Spur 536: South Alamo Street
Exit ramp - move to the correct lane early. Lane positioning matters here
Use the straight / slight right lanes.
Exit 155A
Toward Spur 536: South Alamo Street
Fuel & Cost
Regular Gas
$3.84 one way
$7.68 round trip
$3.84/gal
25.4 MPG avg
9 kg CO2
| Fuel Type | $/gal | One Way | Round Trip |
|---|---|---|---|
| midgrade | $4.20 | $4.20 | $8.40 |
| premium | $4.54 | $4.54 | $9.07 |
| diesel | $5.61 | $5.61 | $11.22 |
No toll roads detected on this route.
Drive Cost (one way)
Fuel
$4
Estimated CO2 emission: 8.9 kg one way. Prices: EIA weekly data, 2026-04-13.
Driving Electric?
About $3 in charging · 0 stops · 67% less CO2
| Vehicle Type | kWh | Stops | DC Fast | Home Charge |
|---|---|---|---|---|
| Average EV | 7.6 | 0 | $2.67 | $1.22 |
| Efficient EV | 6.4 | 0 | $2.22 | $1.02 |
| EV Truck/SUV | 10.2 | 0 | $3.56 | $1.63 |
Gas CO2
9 kg
EV CO2
3 kg (67% less)
This trip is well within single-charge range for most EVs. No charging stops needed if you start fully charged.
DC fast charging avg $0.35/kWh. Home charging avg $0.16/kWh. US grid CO2: 0.39 kg/kWh.
Travel Intel
Current conditions at both ends of the drive.
Destination
San Antonio, TX
Morning in San Antonio on Sunday
Local time
8:41 AM
CDT
Current temp
90°F
Partly Sunny
SSE 10 mph
0% chance
Live forecast
Time zone
Same local time
Origin and destination are on the same clock, so arrival timing is easier to judge at a glance.
Temperature spread
28 degrees warmer at arrival
A meaningful temperature swing is a good cue to rethink layers, water, and how soon you want to arrive.
Road read
31m on the road
The weather snapshot is not static. If you are leaving later, give both cities one more quick forecast check before departure.
Weather data from the National Weather Service. Conditions may change; check closer to your travel date.
What kind of drive is this?
Expect a turn-heavy local drive that keeps you engaged behind the wheel rather than settling into a monotonous interstate rhythm. You won't find any long, uninterrupted highway stretches here, as the longest segment is 0 miles on Angelo Street. In fact, this route features a 0% highway share, meaning you will be navigating local roads and connectors for the entire 28-minute duration. The road transitions from the localized feel of Castroville’s streets into the busier, more complex corridors of San Antonio. Be prepared for frequent turns and a driving experience that prioritizes navigation over high-speed cruising.
92% highway — fuel and pacing are the main things to plan.
13 navigation steps total — most of the decisions cluster near the start and finish.
Longest single stretch: 12.2 mi on Cleto Rodriguez Freeway.
How Hard Is This Drive?
8/10
This is a straightforward highway drive that stays mostly on Cleto Rodriguez Freeway and US Highway 90 West. This route has several spots where lane changes, forks, or exits need your full attention. The trickiest moment comes early in the drive near Angelo Street.
Driving Effort
8/10
Focused - busy navigation packed into a short drive
Balances navigation complexity with total wheel time.
This is a short but busy drive. With 9 decision points packed into just 25.4 miles, you will need to pay attention to lane changes and exits — but the whole thing is over in 31m.
Where does it get tricky?
The main spots that need attention: near the start (Angelo Street): Navigation decision point; at 22.5 miles: Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one; at 22.8 miles: Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one.
Towns Mentioned on Route Signs
Based on OSRM destination-sign hints, not a full list of every settlement the road passes.
Towns Mentioned on Route Signs
Based on OSRM destination-sign hints, not a full list of every settlement the road passes.
Between Castroville, TX and San Antonio, TX, road signs point toward Austin and Laredo.
Austin
22.5 mi in
|
~26m
Laredo
22.5 mi in
|
~26m
About the Cities
Starting in Castroville, TX
Full guide →Castroville is a city in the South Texas Plains. Castroville is known as the Little Alsace of Texas, because its founder brought in a large group of settlers from Alsace in the 1840s.
Arriving in San Antonio, TX
Full guide →Founded 1718
San Antonio is the second largest city in the state of Texas and the 7th largest in the United States. It's the 24th largest metropolitan area in the country. Visited by more than 31 million annual visitors, San Antonio is a beautiful city at the axis of three different geological terrains: Hill Country, South Texas Plains and Prairie and Lakes. There's a lot to do in this city: fine art museums, historical missions and plenty of amusement parks in addition to great dining and lots of drinking. The culture and people are vibrant and interesting. San Antonio's downtown is one of the most lively in the nation.
Top landmarks
- • Alamo Mission in San Antonio — historic place in San Antonio, Bexar County, Texas
- • San Antonio Missions National Historical Park — historic district in San Antonio, Bexar County, Texas
- • Fort Sam Houston — military base in San Antonio, Texas
City content from Wikivoyage (CC BY-SA 4.0) and Wikidata (CC0).
Who Is This Route For?
Weekend Trip
Doable as a same-day drive at 31m. Total distance: 25.4 miles.
Family Friendly
Moderate complexity with 0 natural rest stops along the way.
Solo Traveler
31m drive, comfortable solo distance.
EV Driver
0 DC fast chargers along the route. Coverage: unknown.
First-Time Driver
Mostly highway driving (92%). Some complex stretches to watch for.
Frequently Asked Questions
The longest stretch is about 12.2 miles on Cleto Rodriguez Freeway. The full list of main roads is in the Roads section above.
It helps. This route has a higher-than-average number of complex decision points, which get harder in the dark. If the last hour of the trip is on surface roads or mountain grades, aim to arrive at San Antonio, TX before sunset when you can. Check the Trip Plan for departure windows that land you in daylight.
Yes. At under 2 hours behind the wheel, this works well for families — plan one quick stop if you have younger kids.
The main spots that need attention: near the start (Angelo Street): Navigation decision point; at 22.5 miles: Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one; at 22.8 miles: Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one.
Yes — San Antonio Missions National Historical Park. See the National Parks section for detour distances and tips on detours.
Yes. A round trip is manageable in a single day if you plan a break at San Antonio, TX before heading back.
How this page is built
Compiled by the US Trip Planner planning team at COD Solutions Oy from open government datasets — OSRM over OpenStreetMap for geometry, EIA for fuel prices, and NPS for national parks. See our methodology for refresh cadence and limitations.
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