Spanning 257 miles, your journey from Rio Hondo to San Antonio is a manageable trip that takes approximately 3 hours and 53 minutes. Because the entire route remains within the Great Plains region of Texas, you will experience a consistent landscape throughout the duration of your travel. With a fuel budget of about $39, this trek is well-suited for a single day of driving. While it is certainly possible to complete the distance in one go, you might consider how the turn-heavy local roads affect your fatigue levels. This route is best approached as a straightforward, practical transition between two South Texas locations. It offers a no-frills path for those looking to reach San Antonio efficiently without the need for an overnight stop.
Trip Pace
Same-day drive is realistic
A same-day return is possible, but it will make for a full day on the road.
Break Rhythm
1 planned break
Plan on a short reset every 3 to 4 hours to stay fresh behind the wheel.
Midpoint
126.8 miles from Rio Hondo, TX
A natural place for your longest stop of the day
, about 2h 30m into the drive
.
Main Roads
Road
Distance
Duration
US 281
123.2 mi
2h 13m
U.S. Highway 77
83.8 mi
1h 33m
Nueces Street
14.7 mi
18m
West King Avenue
14.5 mi
17m
Combes Rio Hondo Road
8.5 mi
11m
South 6th Street
4.4 mi
7m
East Commerce Street
0.9 mi
1m
Colorado Avenue
0.7 mi
1m
Longest stretch:
US 281
— 123.2 mi, about 2h 13m
Turn-by-Turn Driving Directions
Step-by-step road directions between Rio Hondo, TX and San Antonio, TX.
1
Start on FM 106
0.7 mi·1 min·Colorado Avenue
2
Keep slight right at fork onto West Colorado Avenue
0.3 mi·22 sec·West Colorado Avenue
3
Turn straight onto FM 508
8.5 mi·11 min·Combes Rio Hondo Road
4
Continue on FM 508
0.3 mi·32 sec·Templeton Street
5
Turn right onto Interstate 69E Frontage Road
0.2 mi·20 sec·Interstate 69E Frontage Road
6
Take the ramp
0.2 mi·23 sec
7
Merge onto I 69E; US 77
84 mi·1 hr 33 min·U.S. Highway 77
Use the straight / slight right lanes.
8
Keep slight right at fork
0.1 mi·8 sec
9
Keep slight right at fork
0.7 mi·1 min
10
Turn left onto FM 772
0.2 mi·17 sec·FM 772
11
Turn straight onto US 77 Business
4.4 mi·7 min·South 6th Street
12
Turn left onto TX 141
14 mi·17 min·West King Avenue
13
Take the ramp
0.6 mi·1 min
14
Merge onto US 281
54 mi·1 hr 1 min·US 281
15
Keep slight left at fork onto US 281
15 mi·18 min·Nueces Street
16
Continue on US 281
0.2 mi·15 sec·US 281
17
Take the exit onto US 281
69 mi·1 hr 11 min·US 281
Use the straight / slight right lanes.
18
Take the exit
0.3 mi·33 sec
Exit 141Toward Commerce Street, Downtown, The AlamoUse the straight / slight right lanes.
19
Turn straight onto Interstate 37 South
380 ft·11 sec·Interstate 37 South
20
Turn left onto East Commerce Street
0.9 mi·1 min·East Commerce Street
21
Turn left onto Military Plaza
392 ft·15 sec·Military Plaza
22
Turn left onto Dolorosa Street
327 ft·8 sec·Dolorosa Street
23
Arrive at destination
Dolorosa Street
Trip Plan
Since this is a turn-heavy, local route, prioritize a departure time that allows you to drive during daylight hours to maintain better visibility on smaller roads. You should plan for at least one dedicated stop to break up the nearly four-hour drive, which helps manage the fatigue that comes with constant maneuvering on local streets. Keep your $39 fuel budget in mind, and consider topping off your tank before you leave Rio Hondo to avoid searching for stations along the more winding sections of the route. Because you are avoiding major highways, be prepared for slower transit speeds than you might expect on a typical 257-mile trip. Staying flexible with your pace is your biggest advantage here, so don't rush the navigation through the local road segments.
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 126.8 miles from Rio Hondo, TX, or about 2h 30m into the drive.
The longest continuous stretch on this route runs about 123.2 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 56 miles or 1h 5m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 126.8 miles or 2h 30m in
This is the best place for your longest stop, a real meal, and a full fuel check.
Final approach
Final hour starts around 4h 2m
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 Rio Hondo, 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 Rio Hondo, TX
This is one driving day of about 253.7 miles and 4h 51m.
Your first comfortable stop window is around 56 miles from Rio Hondo, 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 US 281 for about 123.2 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 15
5 decision points cluster between mile 0.7 and 253.6 — GPS handles the exact turns, but know they're coming. Your lane choice matters more than the turn itself.
4
0.7 mi into trip|~1m in|West Colorado Avenue
Keep slight right at fork onto West Colorado Avenue
Highway fork - watch signs carefully
5
10.1 mi into trip|~14m in|I 69E; US 77 / U.S. Highway 77
Merge onto I 69E; US 77 / U.S. Highway 77
Merge point - match speed before joining. Lane positioning matters here
Use the straight / slight right lanes.
5
183.5 mi into trip|~3h 37m in|US 281
Take the exit onto US 281
Exit ramp - move to the correct lane early. Lane positioning matters here
Use the straight / slight right lanes.
8
252.3 mi into trip|~4h 48m in
Take the exit toward Commerce Street, Downtown, The Alamo
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 141
Toward Commerce Street, Downtown, The Alamo
5
253.6 mi into trip|~4h 51m in|Dolorosa Street
Turn left onto Dolorosa Street
Navigation decision point
Fuel & Cost
Regular Gas
$38.33 one way
$76.67 round trip
$3.84/gal25.4 MPG avg89 kg CO2
Fuel Type
$/gal
One Way
Round Trip
midgrade
$4.20
$41.96
$83.92
premium
$4.54
$45.30
$90.59
diesel
$5.61
$56.01
$112.03
No toll roads detected on this route.
Estimated Trip Cost (one way, 1 person)
Fuel
$38
Meals
$25–$50
Total
$63–$88
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 88.8 kg one way.
Prices: EIA weekly data, 2026-04-13.
Driving Electric?
About $27 in charging
· 0 stops
· 66% less CO2
Vehicle Type
kWh
Stops
DC Fast
Home Charge
Average EV
76.1
0
$26.64
$12.18
Efficient EV
63.4
0
$22.20
$10.15
EV Truck/SUV
101.5
1
$35.52
$16.24
Gas CO2
89 kg
EV CO2
30 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 18, 2026
Origin
Rio Hondo, TX
Night
in Rio Hondo on Saturday
Local time
9:51 PM
CDT
Current temp
90°F
Unavailable
Live forecast
Destination
San Antonio, TX
Night
in San Antonio on Saturday
Local time
9:51 PM
CDT
Current temp
77°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
13 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
4h 51m on the road
An early start around 7-8 AM gets you there with plenty of daylight left.
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...
2 mi from route
~4 min detour
Free
near mile 244.9
On May 8, 1846, U.S. and Mexican troops clashed on the prairie of Palo Alto. The battle was the first in a two-year long war that changed the map of North America. Although the two countries have deve...
Protecting sixty-six miles of wild coastline along the Gulf of America, the narrow barrier island is home to one of the last intact coastal prairie habitats in the United States. Along the hypersaline...
Park data from the National Park Service API. Alerts update every 2 hours.
More Details
What kind of drive is this?
Expect a very different experience than a standard interstate cruise, as this route is defined by a turn-heavy, local road profile. You will navigate via West Colorado Avenue, Combes Rio Hondo Road, and Templeton Street rather than relying on high-speed expressways. With a highway share of 0%, this drive demands your full attention as you navigate local thoroughfares rather than setting cruise control on a monotonous slab of asphalt. The road's personality is technical and winding, requiring you to stay alert through every turn. You will find that the lack of highway stretches makes the 257-mile distance feel more involved and hands-on than a typical long-distance commute.
82% highway — fuel and pacing are the main things to plan.
23 navigation steps total — most of the decisions cluster near the start and finish.
Longest single stretch: 123.2 mi on US 281.
How Hard Is This Drive?
7/10
This is a straightforward highway drive that stays mostly on US 281 and U.S. Highway 77. This route has several spots where lane changes, forks, or exits need your full attention. The trickiest moment comes around 0.7 miles in near West Colorado Avenue.
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 15 significant decision points across 253.7 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 0.7 miles (West Colorado Avenue): Highway fork - watch signs carefully; at 10.1 miles (I 69E; US 77 / U.S. Highway 77): Merge point - match speed before joining. Lane positioning matters here; at 183.5 miles (US 281): Exit ramp - move to the correct lane early. Lane positioning matters here.
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 4h 51m. Total distance: 253.7 miles.
Family Friendly
Moderate complexity with 1 natural rest stops along the way.
Solo Traveler
4h 51m drive, comfortable solo distance.
First-Time Driver
Mostly highway driving (82%). Some complex stretches to watch for.
Frequently Asked Questions
The longest stretch is about 123.2 miles on US 281. 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 0.7 miles (West Colorado Avenue): Highway fork - watch signs carefully; at 10.1 miles (I 69E; US 77 / U.S. Highway 77): Merge point - match speed before joining. Lane positioning matters here; at 183.5 miles (US 281): Exit ramp - move to the correct lane early. Lane positioning matters here.
Yes — San Antonio Missions National Historical Park, Palo Alto Battlefield National Historical Park and Padre Island National Seashore. See the National Parks section for detour distances and tips on detours.
Possible but tiring. At 4.9 hours each way, an in-and-out day trip would put you behind the wheel for 9.7 hours — manageable with a long break at San Antonio, TX, but most travelers stay overnight.
