If you are planning a trip from Greatwood to San Antonio, expect to cover 192.2 miles over the course of roughly 3 hours and 3 minutes. This journey stays entirely within the Great Plains region of Texas, making it a straightforward trek that works perfectly as a single-day outing. You should budget approximately $29 for fuel to complete the trip. Because the drive is relatively short and direct, there is no need to split this into an overnight excursion. It serves as a practical, efficient connection between these two points, allowing you to spend more time at your destination rather than on the road.
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
95 miles from Greatwood, TX
A natural place for your longest stop of the day
, about 1h 44m into the drive
.
Main Roads
Road
Distance
Duration
Katy Freeway
149.1 mi
2h 30m
West Grand Parkway South
17.8 mi
20m
I 10
12 mi
12m
East Commerce Street
4.3 mi
7m
Jose Lopez Freeway
1.6 mi
1m
90th Infantry Division Highway
0.8 mi
<1m
Greatwood Lake Drive
0.7 mi
2m
Crabb River Road
0.7 mi
1m
Longest stretch:
Katy Freeway
— 149.1 mi, about 2h 30m
Turn-by-Turn Driving Directions
Step-by-step road directions between Greatwood, TX and San Antonio, TX.
1
Start on Greatwood Lake Drive
0.7 mi·2 min·Greatwood Lake Drive
2
At end of road, turn left onto Greatwood Parkway
0.4 mi·1 min·Greatwood Parkway
3
Turn right onto Sansbury Boulevard
0.5 mi·1 min·Sansbury Boulevard
4
Turn right onto FM 2759
0.7 mi·1 min·Crabb River Road
Use the straight / right lanes.
5
Continue on TX 99
0.6 mi·1 min·West Grand Parkway South
Use the straight / right lanes.
6
Keep slight left at fork onto TX 99 Toll
17 mi·19 min·West Grand Parkway South
Toward Grand Parkway Toll RoadUse the left / straight lanes.
7
Take the exit
0.4 mi·56 sec
Toward I 10 West, I 10 East: San Antonio, HoustonUse the straight / slight right lanes.
8
Keep slight left at fork
0.8 mi·1 min
Toward I 10 West: San AntonioUse the slight left lane.
9
Merge onto I 10; US 90
149 mi·2 hr 30 min·Katy Freeway
Use the straight / slight right lanes.
10
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.
11
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.
12
Continue on I 10; US 90
1.6 mi·1 min·Jose Lopez Freeway
Use the straight / slight right lanes.
13
Take the exit
0.1 mi·19 sec
Exit 579Toward Commerce Street, Houston StreetUse the straight / slight right lanes.
14
Turn straight onto Interstate 10 East
0.3 mi·38 sec·Interstate 10 East
15
Turn right onto East Houston Street
0.2 mi·20 sec·East Houston Street
16
Turn slight left onto East Commerce Street
4.3 mi·7 min·East Commerce Street
17
Turn left onto Military Plaza
392 ft·15 sec·Military Plaza
18
Turn left onto Dolorosa Street
327 ft·8 sec·Dolorosa Street
19
Arrive at destination
Dolorosa Street
Trip Plan
Since this is a turn-heavy route, it is best to depart during daylight hours to ensure you can clearly see the road ahead. Given that there are no scheduled stops, you should plan to fuel up before you leave Greatwood to avoid needing to hunt for stations along the way. Keep your $29 fuel budget in mind as a baseline, but remember that local road conditions can sometimes affect consumption. The flexibility of a 3-hour trip allows you to adjust your departure time to avoid local traffic congestion. Prioritize comfort, as the technical nature of the roads means you will be active behind the wheel for the duration of the trip.
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 95 miles from Greatwood, TX, or about 1h 44m into the drive.
The longest continuous stretch on this route runs about 149.1 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 42 miles or 50m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 95 miles or 1h 44m in
This is the best place for your longest stop, a real meal, and a full fuel check.
Final approach
Final hour starts around 2h 45m
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 Greatwood, 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 Greatwood, TX
This is one driving day of about 190 miles and 3h 24m.
Your first comfortable stop window is around 42 miles from Greatwood, 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 149.1 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 13
5 decision points cluster between mile 3 and 184.8 — GPS handles the exact turns, but know they're coming. Your lane choice matters more than the turn itself.
7
3 mi into trip|~7m in|TX 99 Toll / West Grand Parkway South
Keep slight left at fork onto TX 99 Toll / West Grand Parkway South toward Grand Parkway Toll Road
Highway fork - watch signs carefully. Lane positioning matters here
Use the left / straight lanes.
Toward Grand Parkway Toll Road
7
20.1 mi into trip|~27m in
Take the exit toward I 10 West, I 10 East: San Antonio, Houston
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.
Toward I 10 West, I 10 East: San Antonio, Houst...
7
20.5 mi into trip|~28m in
Keep slight left at fork toward I 10 West: San Antonio
Highway fork - watch signs carefully. Lane positioning matters here
Use the slight left lane.
Toward I 10 West: San Antonio
6
170.4 mi into trip|~3h 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.
8
184.8 mi into trip|~3h 15m 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
$28.71 one way
$57.42 round trip
$3.84/gal25.4 MPG avg67 kg CO2
Fuel Type
$/gal
One Way
Round Trip
midgrade
$4.20
$31.42
$62.85
premium
$4.54
$33.92
$67.85
diesel
$5.61
$41.95
$83.90
No toll roads detected on this route.
Estimated Trip Cost (one way, 1 person)
Fuel
$29
Meals
$25–$50
Total
$54–$79
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 66.5 kg one way.
Prices: EIA weekly data, 2026-04-13.
Driving Electric?
About $20 in charging
· 0 stops
· 67% less CO2
Vehicle Type
kWh
Stops
DC Fast
Home Charge
Average EV
57
0
$19.95
$9.12
Efficient EV
47.5
0
$16.63
$7.60
EV Truck/SUV
76
0
$26.60
$12.16
Gas CO2
66 kg
EV CO2
22 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.
Forecast as of Apr 18, 2026
Origin
Greatwood, TX
Late night
in Greatwood on Sunday
Local time
5:01 AM
CDT
Current temp
69°F
Mostly Cloudy then Slight Chance Rain Showers
S 5 to 10 mph16% chanceLive forecast
Severe Thunderstorm Warning
Severe Thunderstorm Warning issued April 17 at 11:26PM CDT until April 18 at 12:15AM CDT by NWS Norman OK
Wind Advisory
Wind Advisory issued April 17 at 10:38PM CDT until April 18 at 1:00PM CDT by NWS San Angelo TX
Destination
San Antonio, TX
Late night
in San Antonio on Sunday
Local time
5:01 AM
CDT
Current temp
77°F
Unavailable
Live forecast
77°F
Columbus, TX
95 mi in
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
8 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 24m 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.
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?
Prepare for a turn-heavy local drive, as this route does not rely on major highway stretches. With a 0% highway share, you will be navigating local roads for the entire 192.2-mile duration. This lack of high-speed interstate travel means the experience is much more hands-on and requires your full attention at the wheel. Expect a consistent, winding pace rather than long, uninterrupted segments of cruising. This technical road profile makes the 3-hour and 3-minute drive feel quite different from a typical freeway commute.
95% highway — fuel and pacing are the main things to plan.
19 navigation steps total — most of the decisions cluster near the start and finish.
Longest single stretch: 149.1 mi on Katy Freeway.
How Hard Is This Drive?
7/10
This is a straightforward highway drive that stays mostly on Katy Freeway and West Grand Parkway South. This route has several spots where lane changes, forks, or exits need your full attention. The trickiest moment comes around 3 miles in near TX 99 Toll / West Grand Parkway South.
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 13 significant decision points across 190 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 3 miles (TX 99 Toll / West Grand Parkway South): Highway fork - watch signs carefully. Lane positioning matters here; at 20.1 miles: Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one; at 20.5 miles: Highway fork - watch signs carefully. Lane positioning matters here.
Elevation Profile
Mostly flat terrain
649 ft70 ft
Total Climb
648 ft
Total Descent
70 ft
Highest Point
649 ft
~190 mi in
Elevation Range
579 ft
Towns Mentioned on Route Signs
Based on OSRM destination-sign hints, not a full list of every settlement the road passes.
On the drive from Greatwood, TX to San Antonio, TX, road signs begin pointing toward Houston along the way.
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 24m. Total distance: 190 miles.
Family Friendly
Moderate complexity with 1 natural rest stops along the way.
Solo Traveler
3h 24m drive, comfortable solo distance.
First-Time Driver
Mostly highway driving (95%). Some complex stretches to watch for.
Frequently Asked Questions
The longest stretch is about 149.1 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 3 miles (TX 99 Toll / West Grand Parkway South): Highway fork - watch signs carefully. Lane positioning matters here; at 20.1 miles: Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one; at 20.5 miles: 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 3.4 hours each way, an in-and-out day trip would put you behind the wheel for 6.8 hours — manageable with a long break at San Antonio, TX, but most travelers stay overnight.
