Traveling from San Antonio to Webster covers 218.3 miles, making for a straightforward journey that fits perfectly into a single day. You should plan on approximately 3 hours and 55 minutes of travel time, though your exact arrival depends on traffic flow through local corridors. Since the route stays entirely within the Great Plains region of Texas, the landscape remains consistent throughout your trip. Budgeting around $32 for fuel will keep your tank full for the duration of the drive. Because this trip is under four hours, it is best handled as a one-day excursion, allowing you to reach your destination without the need for an overnight stay.
Trip Pace
Same-day drive is realistic
A same-day return is realistic if you keep stops short.
Break Rhythm
1 planned break
A short stop every 2 to 3 hours is enough for this drive.
Midpoint
109.2 miles from San Antonio, TX
A natural place for your longest stop of the day
, about 1h 55m into the drive
.
Main Roads
Road
Distance
Duration
I 10
151.1 mi
2h 34m
90th Infantry Division Highway
22.2 mi
23m
Gulf Freeway
22.1 mi
26m
Katy Freeway
10.3 mi
12m
East Commerce Street
3.5 mi
5m
Katy Tollway
3.2 mi
4m
Jose Lopez Freeway
1.8 mi
2m
NASA Parkway
1 mi
1m
Longest stretch:
I 10
— 151.1 mi, about 2h 34m
Turn-by-Turn Driving Directions
Step-by-step road directions between San Antonio, TX and Webster, TX.
1
Start on Dolorosa Street
143 ft·4 sec·Dolorosa Street
2
Continue on West Market Street
0.4 mi·42 sec·West Market Street
3
Continue on East Market Street
0.4 mi·45 sec·East Market Street
4
Turn left
363 ft·13 sec
Use the left lane.
5
Turn straight onto East Commerce Street
0.7 mi·1 min·East Commerce Street
6
Keep slight left at fork onto East Commerce Street
2.7 mi·4 min·East Commerce Street
7
Turn slight right onto East Houston Street
0.3 mi·30 sec·East Houston Street
8
Turn left onto Interstate 10 East
0.1 mi·11 sec·Interstate 10 East
Use the left / straight lanes.
9
Take the ramp
0.2 mi·21 sec
Toward I 10 East, US 90 EastUse the straight / slight left lanes.
10
Merge onto I 10; US 90
1.8 mi·2 min·Jose Lopez Freeway
Use the straight / slight right lanes.
11
Continue on I 10; US 90
22 mi·23 min·90th Infantry Division Highway
Use the slight right lane.
12
Continue on I 10; TX 130
151 mi·2 hr 34 min·I 10; TX 130
Toward I 10 East: Houston, Austin, WacoUse the straight / slight right lanes.
13
Take the exit
0.3 mi·22 sec
Toward I 10 Toll: Katy TollwayUse the slight left lane.
14
Merge onto I 10 Toll
3.2 mi·4 min·Katy Tollway
15
Take the exit
0.2 mi·15 sec
Use the straight / slight right lanes.
16
Merge onto I 10; US 90
10 mi·12 min·Katy Freeway
Use the slight left lane.
17
Take the exit
0.2 mi·20 sec
Exit 768BToward I 45 South: GalvestonUse the slight left lane.
18
Merge onto I 45
22 mi·26 min·Gulf Freeway
Use the straight / left lanes.
19
Take the exit
0.2 mi·27 sec
Exit 25Toward FM 528: NASA ParkwayUse the slight right lane.
20
Turn straight onto Gulf Freeway Frontage Road
0.7 mi·1 min·Gulf Freeway Frontage Road
Use the left / straight lanes.
21
Turn left onto FM 528
1.0 mi·1 min·NASA Parkway
Use the straight / left lanes.
22
Turn left onto TX 3
376 ft·17 sec·State Highway 3
23
Continue on TX 3
323 ft·12 sec·State Highway 3
24
Arrive at destination
TX 3
Trip Plan
To make the most of your 3-hour and 55-minute trip, try to time your departure to avoid peak local traffic hours, which can significantly impact your travel time on these city-based roads. Since you are limited to one planned stop for the entire 218.3-mile route, choose your break location carefully to ensure you have enough fuel and supplies to reach Webster comfortably. Keep your $32 fuel budget in mind, and consider filling up before you leave the San Antonio area to avoid potential price fluctuations on the road. Because this is a turn-heavy drive, using a reliable GPS navigation app is a smart move to stay on track through the various street transitions. Flexibility is your biggest advantage here, so feel free to adjust your pace to match the rhythm of the local roads.
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 109.2 miles from San Antonio, TX, or about 1h 55m into the drive.
The longest continuous stretch on this route runs about 151.1 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 48 miles or 53m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 109.2 miles or 1h 55m 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 6m
Traffic, exits, and arrival timing usually matter more near Webster, TX than in the middle of the route.
Before You Leave
+
Open the route before leaving San Antonio, 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 San Antonio, TX
This is one driving day of about 218.3 miles and 3h 55m.
Your first comfortable stop window is around 48 miles from San Antonio, 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 I 10 for about 151.1 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 16
5 decision points cluster between mile 0.8 and 216.2 — GPS handles the exact turns, but know they're coming. Your lane choice matters more than the turn itself.
6
0.8 mi into trip|~1m in
Turn left
Lane positioning matters here
Use the left lane.
6
4.6 mi into trip|~7m in|Interstate 10 East
Turn left onto Interstate 10 East
Lane positioning matters here
Use the left / straight lanes.
7
4.7 mi into trip|~7m in
Take the ramp toward I 10 East, US 90 East
Lane positioning matters here. Multiple destination signs - pick the right one
Use the straight / slight left lanes.
Toward I 10 East, US 90 East
7
194 mi into trip|~3h 25m in
Take the exit toward I 45 South: Galveston
Exit ramp - move to the correct lane early. Lane positioning matters here
Use the slight left lane.
Exit 768B
Toward I 45 South: Galveston
7
216.2 mi into trip|~3h 51m in
Take the exit toward FM 528: NASA Parkway
Exit ramp - move to the correct lane early. Lane positioning matters here
Use the slight right lane.
Exit 25
Toward FM 528: NASA Parkway
Fuel & Cost
Regular Gas
$32.99 one way
$65.97 round trip
$3.84/gal25.4 MPG avg76 kg CO2
Fuel Type
$/gal
One Way
Round Trip
midgrade
$4.20
$36.11
$72.21
premium
$4.54
$38.98
$77.95
diesel
$5.61
$48.20
$96.40
Estimated Tolls: $0.23
Katy Tollway
(3.2 mi)$0.23
Toll estimates based on average 2024-2025 rates. EZ-Pass/SunPass discounts may lower the actual cost.
Estimated Trip Cost (one way, 1 person)
Fuel
$33
Tolls
$0
Meals
$25–$50
Total
$58–$83
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 76.4 kg one way.
Prices: EIA weekly data, 2026-04-13.
Driving Electric?
About $23 in charging
· 0 stops
· 66% less CO2
Vehicle Type
kWh
Stops
DC Fast
Home Charge
Average EV
65.5
0
$22.92
$10.48
Efficient EV
54.6
0
$19.10
$8.73
EV Truck/SUV
87.3
1
$30.56
$13.97
Gas CO2
76 kg
EV CO2
26 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 19, 2026
Origin
San Antonio, TX
Morning
in San Antonio on Tuesday
Local time
7:41 AM
CDT
Current temp
70°F
Unavailable
Live forecast
Destination
Webster, TX
Morning
in Webster on Tuesday
Local time
7:41 AM
CDT
Current temp
84°F
Unavailable
Live forecast
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
14 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
3h 55m on the road
Use the two city cards together: check the sky where you start, then compare it with the local time and temperature at arrival.
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...
Park data from the National Park Service API. Alerts update every 2 hours.
More Details
What kind of drive is this?
Expect a turn-heavy local drive rather than a high-speed interstate cruise, as this route relies on city streets like West Market, East Market, and East Commerce. With a 0% highway share, you will be navigating local roads for the entire 218.3-mile distance. This configuration demands more attention behind the wheel compared to a standard freeway drive, as you will navigate various intersections and local traffic patterns. You won't find long, uninterrupted stretches of open highway here, so plan for a steady, hands-on driving experience from start to finish. The character of the road remains consistent, requiring you to stay focused on local navigation throughout the journey.
86% highway — fuel and pacing are the main things to plan.
24 navigation steps total — most of the decisions cluster near the start and finish.
Longest single stretch: 151.1 mi on I 10.
How Hard Is This Drive?
8/10
This is a straightforward highway drive that stays mostly on I 10 and 90th Infantry Division Highway. This route has several spots where lane changes, forks, or exits need your full attention. The trickiest moment comes around 0.8 miles in.
Driving Effort8/10
Demanding - plan breaks and stay ahead of the key maneuvers
Balances navigation complexity with total wheel time.
This is a demanding drive. With 16 significant decision points across 218.3 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 0.8 miles: Lane positioning matters here; at 4.6 miles (Interstate 10 East): Lane positioning matters here; at 4.7 miles: 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.
Between San Antonio, TX and Webster, TX, road signs point toward Austin and Waco.
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 3h 55m. Total distance: 218.3 miles.
Family Friendly
Moderate complexity with 1 natural rest stops along the way.
Solo Traveler
3h 55m drive, comfortable solo distance.
First-Time Driver
Mostly highway driving (86%). Some complex stretches to watch for.
Frequently Asked Questions
The longest stretch is about 151.1 miles on I 10. The full list of main roads is in the Roads section above.
Expect about $0.23 in tolls one way, starting with Katy Tollway. Most Northeast and Midwest toll agencies accept E-ZPass; in the West and Texas, transponders like TxTag or FasTrak apply. If you do not have a transponder, cashless tolling plates will mail a bill to the vehicle's registered address — usually with a surcharge, so a rental-car toll pass is often cheaper than paying by mail.
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 Webster, 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 0.8 miles: Lane positioning matters here; at 4.6 miles (Interstate 10 East): Lane positioning matters here; at 4.7 miles: 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.
Possible but tiring. At 3.9 hours each way, an in-and-out day trip would put you behind the wheel for 7.9 hours — manageable with a long break at Webster, TX, but most travelers stay overnight.
