This 236.5-mile drive from Texas City, TX to San Antonio, TX is easily manageable as a single-day trip, taking approximately 4 hours and 17 minutes. You'll primarily be on I-10, with a significant portion on the Katy Freeway and Gulf Freeway, making it a highly highway-focused journey. With a projected fuel cost of around $36, it's an economical option for traversing the Great Plains region of Texas. Given its relatively short duration and highway nature, this route offers flexibility for departure times and stop planning.
Trip Pace
Same-day drive is realistic
A same-day return is possible, but it will make for a full day on the road.
Break Rhythm
1 planned break
Plan on a short reset every 3 to 4 hours to stay fresh behind the wheel.
Midpoint
118.2 miles from Texas City, TX
A natural place for your longest stop of the day
, about 2h 10m into the drive
.
Main Roads
Road
Distance
Duration
Katy Freeway
174.7 mi
3h 1m
Gulf Freeway
32.7 mi
37m
I 10
12 mi
12m
Emmett F Lowry Expressway
5.8 mi
7m
East Commerce Street
4.3 mi
7m
Jose Lopez Freeway
1.6 mi
1m
Palmer Highway
1.6 mi
2m
9th Avenue North
1.4 mi
2m
Longest stretch:
Katy Freeway
— 174.7 mi, about 3h 1m
Turn-by-Turn Driving Directions
Step-by-step road directions between Texas City, TX and San Antonio, TX.
1
Start on this road
48 ft·8 sec·this road
2
Turn left onto Spur 197
0.7 mi·1 min·6th Street
3
Turn left onto 9th Avenue North
1.4 mi·2 min·9th Avenue North
Use the left lane.
4
Continue on FM 1764
1.6 mi·2 min·Palmer Highway
5
Continue on FM 1764
5.8 mi·7 min·Emmett F Lowry Expressway
Use the straight / slight right lanes.
6
Merge onto I 45
33 mi·37 min·Gulf Freeway
Use the straight / slight right lanes.
7
Take the exit
0.1 mi·17 sec
Exit 48BToward I 10 West: San AntonioUse the slight left / straight lanes.
8
Merge onto I 10; US 90
175 mi·3 hr 1 min·Katy Freeway
Use the straight / slight right lanes.
9
Keep slight left at fork onto I 10; US 90; TX 130
12 mi·12 min·I 10; US 90; TX 130
Use the straight / slight right lanes.
10
Keep slight left at fork onto I 10; US 90; TX 130
0.8 mi·51 sec·90th Infantry Division Highway
Use the straight / slight right lanes.
11
Continue on I 10; US 90
1.6 mi·1 min·Jose Lopez Freeway
Use the straight / slight right lanes.
12
Take the exit
0.1 mi·19 sec
Exit 579Toward Commerce Street, Houston StreetUse the straight / slight right lanes.
13
Turn straight onto Interstate 10 East
0.3 mi·38 sec·Interstate 10 East
14
Turn right onto East Houston Street
0.2 mi·20 sec·East Houston Street
15
Turn slight left onto East Commerce Street
4.3 mi·7 min·East Commerce Street
16
Turn left onto Military Plaza
392 ft·15 sec·Military Plaza
17
Turn left onto Dolorosa Street
327 ft·8 sec·Dolorosa Street
18
Arrive at destination
Dolorosa Street
Trip Plan
For this 4-hour and 17-minute drive, consider an early morning departure to maximize your day in San Antonio and avoid potential traffic. With only 236.5 miles and a fuel cost around $36, you have flexibility with stops. Plan for one main stop to break up the 174.7-mile stretch on the Katy Freeway, ensuring you stay comfortable. Keep an eye on fuel levels, as while the total cost is low, extended highway stretches mean fewer immediate refueling opportunities off the main interstate.
Morning Departure
An early start around 7-8 AM gets you there with plenty of daylight left.
Evening Departure
A late afternoon start means arriving after dark. Morning is better.
You can normally do this drive in one day.
Plan roughly 1 meaningful break for fuel, food, and rest.
The halfway point lands around 118.2 miles from Texas City, TX, or about 2h 10m into the drive.
The longest continuous stretch on this route runs about 174.7 miles.
This is a comfortable same-day trip.
Departure
Before you leave
Start with fuel, water, and navigation already sorted so the first hour feels easy.
First stop
Around 52 miles or 1h 1m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 118.2 miles or 2h 10m in
This is the best place for your longest stop, a real meal, and a full fuel check.
Final approach
Final hour starts around 3h 28m
Traffic, exits, and arrival timing usually matter more near San Antonio, TX than in the middle of the route.
Before You Leave
+
Open the route before leaving Texas City, TX so your first major turns are already loaded.
+
Leave with enough water and a charging cable within reach, not packed away.
+
Check your fuel range against the first long segment, especially if you are starting outside city service areas.
Day 1
Settle into the route from Texas City, TX
This is one driving day of about 236.5 miles and 4h 17m.
Your first comfortable stop window is around 52 miles from Texas City, TX.
This route can stay practical as a one-day drive if traffic stays reasonable.
Plan about 1 real break rather than only quick fuel stops.
The longest stretch is on Katy Freeway for about 174.7 miles.
Where to Stop
Rest stops, refuel points, and overnight suggestions along this route.
Place data sourced from public business listings. Hours and availability may vary.
Heads-up: tricky spots
5 of 11
5 decision points cluster between mile 0.7 and 231.4 — GPS handles the exact turns, but know they're coming. Your lane choice matters more than the turn itself.
6
0.7 mi into trip|~1m in|9th Avenue North
Turn left onto 9th Avenue North
Lane positioning matters here
Use the left lane.
7
42.2 mi into trip|~51m in
Take the exit toward I 10 West: San Antonio
Exit ramp - move to the correct lane early. Lane positioning matters here
Use the slight left / straight lanes.
Exit 48B
Toward I 10 West: San Antonio
6
217 mi into trip|~3h 52m in|I 10; US 90; TX 130
Keep slight left at fork onto I 10; US 90; TX 130
Highway fork - watch signs carefully. Lane positioning matters here
Use the straight / slight right lanes.
6
229 mi into trip|~4h 5m in|I 10; US 90; TX 130 / 90th Infantry Division Highway
Keep slight left at fork onto I 10; US 90; TX 130 / 90th Infantry Division Highway
Highway fork - watch signs carefully. Lane positioning matters here
Use the straight / slight right lanes.
8
231.4 mi into trip|~4h 8m in
Take the exit toward Commerce Street, Houston Street
Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one
Use the straight / slight right lanes.
Exit 579
Toward Commerce Street, Houston Street
Fuel & Cost
Regular Gas
$35.74 one way
$71.47 round trip
$3.84/gal25.4 MPG avg83 kg CO2
Fuel Type
$/gal
One Way
Round Trip
midgrade
$4.20
$39.12
$78.23
premium
$4.54
$42.23
$84.45
diesel
$5.61
$52.22
$104.43
No toll roads detected on this route.
Estimated Trip Cost (one way, 1 person)
Fuel
$36
Meals
$25–$50
Total
$61–$86
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 82.7 kg one way.
Prices: EIA weekly data, 2026-04-13.
Driving Electric?
About $25 in charging
· 0 stops
· 66% less CO2
Vehicle Type
kWh
Stops
DC Fast
Home Charge
Average EV
71
0
$24.83
$11.35
Efficient EV
59.1
0
$20.69
$9.46
EV Truck/SUV
94.6
1
$33.11
$15.14
Gas CO2
83 kg
EV CO2
28 kg (66% less)
Plan for 0 charging stops, roughly every 270 miles. Allow 25-40 minutes per stop at a DC fast charger.
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.
Forecast as of Apr 18, 2026
Origin
Texas City, TX
Morning
in Texas City on Sunday
Local time
6:57 AM
CDT
Current temp
57°F
Unavailable
Live forecast
Destination
San Antonio, TX
Morning
in San Antonio on Sunday
Local time
6:57 AM
CDT
Current temp
67°F
Mostly Cloudy
SSE 5 to 10 mph1% chanceLive forecast
Special Weather Statement
Special Weather Statement issued April 18 at 4:01AM CDT by NWS Shreveport LA
Wind Advisory
Wind Advisory issued April 18 at 2:47AM CDT until April 18 at 1:00PM CDT by NWS San Angelo TX
Seasonal Notes
Summer travel usually means heavier construction, hotter rest stops, and busier weekend traffic around major cities.
Winter travel shortens daylight, so a route that looks manageable on paper can feel much longer after dark.
Holiday weekends tend to make both departure and arrival windows slower than the raw route time suggests.
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
10 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
4h 17m on the road
An early start around 7-8 AM gets you there with plenty of daylight left.
Weather data from the National Weather Service. Conditions may change; check closer to your travel date.
National Parks Near This Route
Worth a detour if your schedule allows.
San Antonio Missions National Historical Park
National Historical Park
Welcome to San Antonio Missions, a National Park Service site and the only UNESCO World Heritage Site in Texas. Each mission in the park is a center of community and has been since the early 1700s. Th...
9 mi from route
~22 min detour
Free
near mile 236.5
Park data from the National Park Service API. Alerts update every 2 hours.
More Details
What kind of drive is this?
Expect a highway-focused drive for 96% of this 236.5-mile route, predominantly utilizing I-10. The longest uninterrupted stretch you'll encounter is 174.7 miles on the Katy Freeway, indicating long periods of consistent highway travel. This profile suggests a steady pace with limited need for navigating local roads. The drive maintains a consistent character, allowing you to settle into a rhythm as you cover the distance between Texas City and San Antonio.
96% highway — fuel and pacing are the main things to plan.
18 navigation steps total — most of the decisions cluster near the start and finish.
Longest single stretch: 174.7 mi on Katy Freeway.
How Hard Is This Drive?
7/10
This is a straightforward highway drive that stays mostly on Katy Freeway and Gulf Freeway. This route has several spots where lane changes, forks, or exits need your full attention. The trickiest moment comes around 0.7 miles in near 9th Avenue North.
Driving Effort7/10
Demanding - plan breaks and stay ahead of the key maneuvers
Balances navigation complexity with total wheel time.
This is a demanding drive. With 11 significant decision points across 236.5 miles, you will need to stay alert - especially through interchange areas and urban stretches. Consider splitting it into segments if you are not comfortable with fast highway navigation.
Where does it get tricky?
The main spots that need attention: at 0.7 miles (9th Avenue North): Lane positioning matters here; at 42.2 miles: Exit ramp - move to the correct lane early. Lane positioning matters here; at 217 miles (I 10; US 90; TX 130): Highway fork - watch signs carefully. Lane positioning matters here.
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
Doable as a same-day drive at 4h 17m. Total distance: 236.5 miles.
Family Friendly
Moderate complexity with 1 natural rest stops along the way.
Solo Traveler
4h 17m drive, comfortable solo distance.
First-Time Driver
Mostly highway driving (96%). Some complex stretches to watch for.
Frequently Asked Questions
The longest stretch is about 174.7 miles on Katy Freeway. The full list of main roads is in the Roads section above.
We did not find dedicated rest areas on this route. For a drive this long, plan bathroom and stretch breaks around gas stations, fast-food stops, or small-town downtowns — check the Nearby Places section for options.
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.
Only with planning. This is a long drive for kids — consider splitting it into two days rather than pushing through. Plan at least 1 meaningful breaks. Dedicated rest areas are limited, so plan gas or food stops as your bathroom breaks.
The main spots that need attention: at 0.7 miles (9th Avenue North): Lane positioning matters here; at 42.2 miles: Exit ramp - move to the correct lane early. Lane positioning matters here; at 217 miles (I 10; US 90; TX 130): Highway fork - watch signs carefully. Lane positioning matters here.
Yes — San Antonio Missions National Historical Park. See the National Parks section for detour distances and tips on detours.
Possible but tiring. At 4.3 hours each way, an in-and-out day trip would put you behind the wheel for 8.6 hours — manageable with a long break at San Antonio, TX, but most travelers stay overnight.
