Origin
Geronimo, TX
Morning in Geronimo on Tuesday
Local time
7:14 AM
CDT
Current temp
89°F
Unavailable
Live forecast
Trip from Geronimo, 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
47m
Distance
39.3 mi
63 km
Drive Score
6/10
Good drive
Same Day?
Yes, doable
Fuel Cost
$6
one way
EV Charging
Unknown
Best Time to Leave
4 AM
0h 43m
★
6 AM
0h 47m
8 AM
0h 55m
10 AM
0h 50m
12 PM
0h 49m
3 PM
0h 50m
5 PM
0h 55m
8 PM
0h 45m
Estimated drive times based on typical traffic patterns. Actual times may vary with weather, construction, and real-time conditions.
Geronimo, TX
Wikimedia Commons
San Antonio, TX
Wikimedia Commons
Trip Overview
Geronimo, TX to San Antonio, TX is 39.3 miles and takes about 47m via I 10 and East Commerce Street, with a fuel budget near $6 and enough daylight to finish in a day. This short trip stays within the Great Plains region of Texas. Expect a mostly highway experience that's straightforward for most drivers. It's a quick hop that doesn't require much planning, making it ideal for a spontaneous outing or a simple connection to a larger trip.
Main Roads
| Road | Distance | Duration |
|---|---|---|
| I 10 | 26.1 mi | 26m |
| East Commerce Street | 4.3 mi | 7m |
| North State Highway 123 | 3.2 mi | 4m |
| Jose Lopez Freeway | 1.6 mi | 1m |
| TX 123 Bus | 1.1 mi | 1m |
| West Interstate 10 | 1.1 mi | 1m |
| 90th Infantry Division Highway | 0.8 mi | <1m |
| Interstate 10 East | 0.3 mi | <1m |
Longest stretch:
I 10
— 26.1 mi, about 26m
Turn-by-Turn Driving Directions
Step-by-step road directions between Geronimo, TX and San Antonio, TX.
1
Start on TX 123
3.2 mi
·
4 min
·
North State Highway 123
2
Turn right onto TX 123 Bus
1.1 mi
·
1 min
·
TX 123 Bus
3
Turn slight right
180 ft
·
7 sec
Use the right lane.
4
Turn straight onto West Interstate 10
1.1 mi
·
1 min
·
West Interstate 10
5
Take the ramp
0.3 mi
·
35 sec
Toward I 10 West
6
Merge onto I 10; TX 130
4.7 mi
·
4 min
·
I 10; TX 130
Use the straight / slight right lanes.
7
Continue on I 10; US 90; TX 130
9.4 mi
·
9 min
·
I 10; US 90; TX 130
Use the straight / slight right lanes.
8
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.
9
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.
10
Continue on I 10; US 90
1.6 mi
·
1 min
·
Jose Lopez Freeway
Use the straight / slight right lanes.
11
Take the exit
0.1 mi
·
19 sec
Exit 579
Toward Commerce Street, Houston Street
Use the straight / slight right lanes.
12
Turn straight onto Interstate 10 East
0.3 mi
·
38 sec
·
Interstate 10 East
13
Turn right onto East Houston Street
0.2 mi
·
20 sec
·
East Houston Street
14
Turn slight left onto East Commerce Street
4.3 mi
·
7 min
·
East Commerce Street
15
Turn left onto Military Plaza
392 ft
·
15 sec
·
Military Plaza
16
Turn left onto Dolorosa Street
327 ft
·
8 sec
·
Dolorosa Street
17
Arrive at destination
Dolorosa Street
Where to Stop
Rest stops, refuel points, and overnight suggestions along this route.
Mid-route town
Meal stop
20 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 39 miles helps settle the day before fatigue starts building.
Meal break
The midpoint is around 19.7 miles from Geronimo, TX, which is a good place for a longer meal and fuel stop.
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 105 decision points cluster between mile 5.8 and 39.3 — GPS handles the exact turns, but know they're coming. Your lane choice matters more than the turn itself.
5
5.8 mi into trip
|
~8m in
|
I 10; TX 130
Merge onto I 10; TX 130
Merge point - match speed before joining. Lane positioning matters here
Use the straight / slight right lanes.
6
19.8 mi into trip
|
~22m 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
31.9 mi into trip
|
~35m 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
34.2 mi into trip
|
~38m 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
5
39.3 mi into trip
|
~47m in
|
Dolorosa Street
Turn left onto Dolorosa Street
Navigation decision point
Fuel & Cost
Regular Gas
$5.94 one way
$11.88 round trip
$3.84/gal
25.4 MPG avg
14 kg CO2
| Fuel Type | $/gal | One Way | Round Trip |
|---|---|---|---|
| midgrade | $4.20 | $6.50 | $13.00 |
| premium | $4.54 | $7.02 | $14.03 |
| diesel | $5.61 | $8.68 | $17.35 |
No toll roads detected on this route.
Drive Cost (one way)
Fuel
$6
Estimated CO2 emission: 13.8 kg one way. Prices: EIA weekly data, 2026-04-13.
Driving Electric?
About $4 in charging · 0 stops · 64% less CO2
| Vehicle Type | kWh | Stops | DC Fast | Home Charge |
|---|---|---|---|---|
| Average EV | 11.8 | 0 | $4.13 | $1.89 |
| Efficient EV | 9.8 | 0 | $3.44 | $1.57 |
| EV Truck/SUV | 15.7 | 0 | $5.50 | $2.52 |
Gas CO2
14 kg
EV CO2
5 kg (64% 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 Tuesday
Local time
7:14 AM
CDT
Current temp
70°F
Unavailable
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
19 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
47m 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?
You'll spend about 85% of this drive on highways, with the longest continuous stretch on I 10 measuring 26.1 miles. The highway portion will transition to surface roads like East Commerce Street as you approach San Antonio. Expect a fairly typical highway cruising experience for most of the trip, with a shift to more local traffic and exits closer to your destination.
85% highway — fuel and pacing are the main things to plan.
17 navigation steps total — most of the decisions cluster near the start and finish.
Longest single stretch: 26.1 mi on I 10.
How Hard Is This Drive?
8/10
This is a straightforward highway drive that stays mostly on I 10 and East Commerce Street. This route has several spots where lane changes, forks, or exits need your full attention. The trickiest moment comes around 5.8 miles in near I 10; TX 130.
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 10 decision points packed into just 39.3 miles, you will need to pay attention to lane changes and exits — but the whole thing is over in 47m.
Where does it get tricky?
The main spots that need attention: at 5.8 miles (I 10; TX 130): Merge point - match speed before joining. Lane positioning matters here; at 19.8 miles (I 10; US 90; TX 130): Highway fork - watch signs carefully. Lane positioning matters here; at 31.9 miles (I 10; US 90; TX 130 / 90th Infantry Division Highway): Highway fork - watch signs carefully. Lane positioning matters here.
About the Cities
Starting in Geronimo, TX
Full guide →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 47m. Total distance: 39.3 miles.
Family Friendly
Moderate complexity with 0 natural rest stops along the way.
Solo Traveler
47m drive, comfortable solo distance.
EV Driver
0 DC fast chargers along the route. Coverage: unknown.
First-Time Driver
Mostly highway driving (85%). Some complex stretches to watch for.
Frequently Asked Questions
The longest stretch is about 26.1 miles on I 10. The full list of main roads is in the Roads section above.
Yes — we found about 9 rest areas or service plazas within a short detour of the route (from OpenStreetMap). See the Rest Stops tab under Nearby Places for locations and mile markers. Plan to stretch, use the bathroom, and top off fluids every 2–3 hours on longer drives.
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: at 5.8 miles (I 10; TX 130): Merge point - match speed before joining. Lane positioning matters here; at 19.8 miles (I 10; US 90; TX 130): Highway fork - watch signs carefully. Lane positioning matters here; at 31.9 miles (I 10; US 90; TX 130 / 90th Infantry Division Highway): 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.
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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