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Trip from San Antonio, TX to Geronimo, TX

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Compiled 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

7/10

Good drive

Same Day?

Yes, doable

Fuel Cost

$6

one way

EV Charging

Unknown

Best Time to Leave

Save up to 12 min
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.

Downtown San Antonio, TX, TX

San Antonio, TX

Wikimedia Commons

census-designated place in Guadalupe County, Texas, United States

Geronimo, TX

Wikimedia Commons

Trip Overview

San Antonio to Geronimo is 39.3 miles and takes about 47 minutes via 90th Infantry Division Highway and I 10, 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, making it an easy day trip or an extension to another journey. Expect a drive that involves frequent turns and navigating local roads, rather than a simple highway cruise. It's a straightforward hop that requires minimal planning, perfect for when you need to get from point A to point B without much fuss.

Main Roads

Road Distance Duration
90th Infantry Division Highway 22.2 mi 23m
I 10 4.7 mi 4m
East Commerce Street 3.5 mi 5m
North State Highway 123 3.2 mi 4m
Jose Lopez Freeway 1.8 mi 2m
North Austin Street 1.2 mi 2m
West Interstate 10 1 mi 1m
East Market Street 0.4 mi <1m
Longest stretch: 90th Infantry Division Highway — 22.2 mi, about 23m

Turn-by-Turn Driving Directions

Step-by-step road directions between San Antonio, TX and Geronimo, 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 East Use 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

4.7 mi · 4 min · I 10; TX 130
Toward I 10 East: Houston, Austin, Waco Use the straight / slight right lanes.
13

Take the exit

0.3 mi · 34 sec
Exit 609 Toward TX 123 Business: Austin Street Use the slight right lane.
14

Turn straight onto West Interstate 10

1.0 mi · 1 min · West Interstate 10
15

Turn left onto TX 123 Bus

1.2 mi · 2 min · North Austin Street
16

At end of road, turn left onto TX 123

3.2 mi · 4 min · North State Highway 123
17

Arrive at destination

TX 123

Where to Stop

Rest stops, refuel points, and overnight suggestions along this route.

city in Bexar County, Texas, United States

Mid-route town

Meal stop

Converse, TX

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

Seguin, TX

Fuel and coffee

A short stop after about 39 miles helps settle the day before fatigue starts building.

Cibolo, TX

Meal break

The midpoint is around 19.6 miles from San Antonio, 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 8

5 decision points cluster between mile 0.8 and 33.5 — 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
5
4.9 mi into trip | ~8m in | I 10; US 90 / Jose Lopez Freeway

Merge onto I 10; US 90 / Jose Lopez Freeway

Merge point - match speed before joining. Lane positioning matters here

Use the straight / slight right lanes.
7
33.5 mi into trip | ~38m in

Take the exit toward TX 123 Business: Austin Street

Exit ramp - move to the correct lane early. Lane positioning matters here

Use the slight right lane. Exit 609 Toward TX 123 Business: Austin Street

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.

Forecast as of Apr 19, 2026

Origin

San Antonio, TX

Morning in San Antonio on Tuesday

Local time

7:15 AM

CDT

Current temp

70°F

Unavailable

Live forecast

Destination

Geronimo, TX

Morning in Geronimo on Tuesday

Local time

7:15 AM

CDT

Current temp

89°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 warmer 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?

This route is characterized by its turn-heavy local drive, with only 28% of the journey on highways. You'll experience a mix of city streets and faster road segments, requiring your attention for navigation. The longest uninterrupted stretch you'll encounter is 22.2 miles on the 90th Infantry Division Highway, offering a brief period of consistent travel before you're back to navigating intersections. The overall feel is less about open-road cruising and more about efficiently moving through a series of connected roads.

Only 28% highway — the rest is turn-by-turn surface driving.
17 navigation steps total — most of the decisions cluster near the start and finish.
Longest single stretch: 22.2 mi on 90th Infantry Division Highway.

How Hard Is This Drive?

7/10

Expect a hands-on drive with frequent turns and local roads rather than long highway stretches. 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 Effort 7/10

Focused - busy navigation packed into a short drive

Balances navigation complexity with total wheel time.

This is a short but busy drive. With 8 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 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 Geronimo, TX, road signs point toward Austin and Waco.

Austin

28.8 mi in | ~33m | via I 10; TX 130

Waco

28.8 mi in | ~33m | via I 10; TX 130

About the Cities

Starting 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

Arriving in Geronimo, TX

Full guide →

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.

Scenic Drive

Mostly surface roads route profile with national parks nearby.

Frequently Asked Questions

The longest stretch is about 22.2 miles on 90th Infantry Division Highway. The full list of main roads is in the Roads section above.

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 Geronimo, 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 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.

Yes. A round trip is manageable in a single day if you plan a break at Geronimo, 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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Explore More

Return Trip

Geronimo, TX to San Antonio, TX

Plan the drive back the other way.

39.3 mi 47m

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