Origin
Tomball, TX
Afternoon in Tomball on Tuesday
Local time
12:00 PM
CDT
Current temp
88°F
Unavailable
Live forecast
Trip from Tomball, TX to San Antonio, TX
Pin this tripCompiled and reviewed by the US Trip Planner planning team at COD Solutions Oy · Last reviewed Apr 21, 2026 · Editorial standards
Drive Time
3h 34m
Distance
198.9 mi
320 km
Drive Score
8/10
Great drive
Same Day?
Yes, doable
Fuel Cost
$30
one way
EV Charging
Unknown
Best Time to Leave
4 AM
3h 22m
★
6 AM
3h 35m
8 AM
3h 59m
10 AM
3h 43m
12 PM
3h 41m
3 PM
3h 45m
5 PM
3h 58m
8 PM
3h 27m
Estimated drive times based on typical traffic patterns. Actual times may vary with weather, construction, and real-time conditions.
Tomball, TX
Danny Meneses
San Antonio, TX
Wikimedia Commons
Trip Overview
Tomball, TX to San Antonio, TX is 198.9 miles and takes about 3h 34m via Katy Freeway and I 10, with a fuel budget near $30 and enough daylight to finish in a day. This drive takes you across the Great Plains region of Texas, mostly on well-traveled highways. Expect a straightforward trip with minimal fuss, ideal for a single-day excursion. If you're looking for an easy drive with predictable conditions, this route fits the bill.
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
99.4 miles from Tomball, TX
A natural place for your longest stop of the day , about 1h 49m into the drive .
Main Roads
| Road | Distance | Duration |
|---|---|---|
| Katy Freeway | 149.1 mi | 2h 30m |
| Grand Parkway | 23.2 mi | 25m |
| I 10 | 12 mi | 12m |
| East Commerce Street | 4.3 mi | 7m |
| Telge Road | 2 mi | 3m |
| FM 2920 | 1.9 mi | 4m |
| Jose Lopez Freeway | 1.6 mi | 1m |
| Waller Tomball Road | 1.4 mi | 2m |
Longest stretch:
Katy Freeway
— 149.1 mi, about 2h 30m
Turn-by-Turn Driving Directions
Step-by-step road directions between Tomball, TX and San Antonio, TX.
1
Start on FM 2920
1.1 mi
·
3 min
·
FM 2920
2
Continue on FM 2920
0.8 mi
·
1 min
·
FM 2920
Use the straight / left lanes.
3
Continue on FM 2920
1.4 mi
·
2 min
·
Waller Tomball Road
4
Turn left onto Telge Road
2.0 mi
·
3 min
·
Telge Road
Use the left lane.
5
Take the ramp
0.5 mi
·
58 sec
Toward TX 99 Toll West
6
Merge onto TX 99 Toll
23 mi
·
25 min
·
Grand Parkway
Use the straight / slight right lanes.
7
Take the exit
0.6 mi
·
1 min
Toward I 10 East, I 10 West: Houston, San Antonio
Use the straight / slight right lanes.
8
Keep slight right at fork
0.7 mi
·
1 min
Toward I 10 West: San Antonio
Use the slight right 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 579
Toward Commerce Street, Houston Street
Use 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
Given this is a single-day trip of under 4 hours, you have flexibility with your departure time. Leaving Tomball in the morning will allow you to reach San Antonio with plenty of daylight remaining. With only one recommended stop, you can choose to make it a quick pit stop or enjoy a more extended break. Keep an eye on your fuel gauge, as the $30 budget is an estimate and prices can fluctuate. The consistent highway driving means you can maintain a steady pace, but be aware of potential traffic as you near San Antonio.
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 99.4 miles from Tomball, TX, or about 1h 49m 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 44 miles or 53m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 99.4 miles or 1h 49m 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 53m
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 Tomball, 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 Tomball, TX
This is one driving day of about 198.9 miles and 3h 34m.
Your first comfortable stop window is around 44 miles from Tomball, 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.
Mid-route town
Meal stop
99 mi into the route
Best for: Lunch, fuel, and a longer reset
This sits close to the middle of the route, so it works well for the longest stop of the day.
Pacing Suggestions
Fuel and coffee
A short stop after about 44 miles helps settle the day before fatigue starts building.
Meal break
The midpoint is around 99.4 miles from Tomball, TX, which is a good place for a longer meal and fuel stop.
Before the longest stretch
Fuel checkTop up before Katy Freeway if your tank is already low. That segment runs about 149.1 miles.
These stop ideas are pacing suggestions — the exact town or exit can change with traffic, hotel plans, and fuel range.
Heads-up: tricky spots
5 of 125 decision points cluster between mile 29 and 193.8 — GPS handles the exact turns, but know they're coming. Your lane choice matters more than the turn itself.
7
29 mi into trip
|
~37m in
Take the exit toward I 10 East, I 10 West: Houston, San Antonio
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 East, I 10 West: Houston, San Anton...
7
29.6 mi into trip
|
~38m in
Keep slight right at fork toward I 10 West: San Antonio
Highway fork - watch signs carefully. Lane positioning matters here
Use the slight right lane.
Toward I 10 West: San Antonio
6
179.4 mi into trip
|
~3h 10m 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
191.4 mi into trip
|
~3h 23m 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
193.8 mi into trip
|
~3h 25m 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
$30.05 one way
$60.11 round trip
$3.84/gal
25.4 MPG avg
70 kg CO2
| Fuel Type | $/gal | One Way | Round Trip |
|---|---|---|---|
| midgrade | $4.20 | $32.90 | $65.79 |
| premium | $4.54 | $35.51 | $71.02 |
| diesel | $5.61 | $43.91 | $87.83 |
No toll roads detected on this route.
Estimated Trip Cost (one way, 1 person)
Fuel
$30
Meals
$25–$50
Total
$55–$80
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 69.6 kg one way. Prices: EIA weekly data, 2026-04-13.
Driving Electric?
About $21 in charging · 0 stops · 67% less CO2
| Vehicle Type | kWh | Stops | DC Fast | Home Charge |
|---|---|---|---|---|
| Average EV | 59.7 | 0 | $20.88 | $9.55 |
| Efficient EV | 49.7 | 0 | $17.40 | $7.96 |
| EV Truck/SUV | 79.6 | 0 | $27.85 | $12.73 |
Gas CO2
70 kg
EV CO2
23 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
Afternoon in San Antonio on Tuesday
Local time
12:00 PM
CDT
Current temp
70°F
Unavailable
Live forecast
86°F
Columbus, TX
99 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
18 degrees cooler at arrival
A meaningful temperature swing is a good cue to rethink layers, water, and how soon you want to arrive.
Road read
3h 34m 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.
What kind of drive is this?
This route is 95% highway, meaning you'll spend most of your time on major freeways. The longest continuous stretch on a highway is 149.1 miles, primarily on the Katy Freeway. As you approach San Antonio, you'll notice an increase in exit density, characteristic of approaching a major metropolitan area. Expect minimal time on surface roads, keeping your average speed high.
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?
8/10
This is a straightforward highway drive that stays mostly on Katy Freeway and Grand Parkway. This route has several spots where lane changes, forks, or exits need your full attention. The trickiest moment comes around 29 miles in.
Driving Effort
8/10
Demanding - plan breaks and stay ahead of the key maneuvers
Balances navigation complexity with total wheel time.
This is a demanding drive. With 12 significant decision points across 198.9 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 29 miles: Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one; at 29.6 miles: Highway fork - watch signs carefully. Lane positioning matters here; at 179.4 miles (I 10; US 90; TX 130): Highway fork - watch signs carefully. Lane positioning matters here.
About the Cities
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 3h 34m. Total distance: 198.9 miles.
Family Friendly
Moderate complexity with 1 natural rest stops along the way.
Solo Traveler
3h 34m 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 29 miles: Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one; at 29.6 miles: Highway fork - watch signs carefully. Lane positioning matters here; at 179.4 miles (I 10; US 90; TX 130): Highway fork - watch signs carefully. Lane positioning matters here.
Possible but tiring. At 3.6 hours each way, an in-and-out day trip would put you behind the wheel for 7.2 hours — manageable with a long break at San Antonio, TX, but most travelers stay overnight.
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, and EIA for fuel prices. See our methodology for refresh cadence and limitations.
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