Traveling from Roma to San Antonio covers 249.9 miles and typically takes about 3 hours and 55 minutes behind the wheel. Because this journey stays within the Great Plains region of Texas, you will experience consistent terrain throughout the trip. You can comfortably complete this drive in a single day, making it an efficient connection between these two points. Budgeting roughly $37 for fuel should cover your needs for the trip. Since the route involves a turn-heavy local drive, it is best to stay alert and prepared for constant navigation rather than a simple interstate cruise. Whether you are traveling for business or visiting family, this one-day itinerary offers a straightforward path between your starting point and destination.
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
122.8 miles from Roma, TX
A natural place for your longest stop of the day
, about 2h 20m into the drive
.
Step-by-step road directions between Roma, TX and San Antonio, TX.
1
Start on US 83
258 ft·8 sec·North Grant Street
2
Turn left onto East Franklin Avenue
294 ft·18 sec·East Franklin Avenue
3
Turn left onto US 83
12 mi·14 min·North Garcia Street
4
Continue on US 83
54 mi·1 hr 1 min·United States Highway 83
5
Continue on US 83
14 mi·15 min·North US Highway 83
6
Continue on US 83
5.4 mi·8 min·South Zapata Highway
7
Turn left onto South Meadow Avenue
2.1 mi·4 min·South Meadow Avenue
8
Turn left onto US 83
1.0 mi·2 min·Guadalupe Street
9
Continue on US 83
0.4 mi·48 sec·Houston Street
10
Turn right onto US 83
278 ft·5 sec·San Dario Avenue
11
Continue on I 35; I 27; US 83
144 mi·2 hr 27 min·Purple Heart Trail
Use the straight / slight right lanes.
12
Continue on I 35
9.3 mi·11 min·South Pan Am Expressway
Use the straight / slight left lanes.
13
Keep slight left at fork onto I 35
0.5 mi·40 sec·South Pan Am Expressway
14
Take the exit
0.1 mi·15 sec
Exit 155AToward Spur 536: South Alamo StreetUse the straight / slight right lanes.
15
Turn straight onto South Laredo Street
0.4 mi·45 sec·South Laredo Street
Use the straight / left lanes.
16
Continue on South Santa Rosa Street
0.5 mi·51 sec·South Santa Rosa Street
17
Turn right onto Dolorosa Street
0.3 mi·32 sec·Dolorosa Street
18
Arrive at destination
Dolorosa Street
Trip Plan
Since this is a turn-heavy local drive, departing early in the morning is your best strategy to ensure you reach San Antonio before fatigue sets in. You have the flexibility to plan around one stop, which is ideal for breaking up the nearly four-hour duration. Keep a close eye on your GPS, as the lack of long highway stretches means you will be making frequent turns that require constant navigation. Given the $37 fuel estimate, consider topping off your tank before you leave Roma to avoid needing to hunt for stations in unfamiliar areas along the local roads. Making the most of your single planned stop will help you maintain your pace while navigating the winding nature of the route.
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 122.8 miles from Roma, TX, or about 2h 20m into the drive.
The longest continuous stretch on this route runs about 144.4 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 54 miles or 1h 1m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 122.8 miles or 2h 20m in
This is the best place for your longest stop, a real meal, and a full fuel check.
Final approach
Final hour starts around 3h 40m
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 Roma, 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 Roma, TX
This is one driving day of about 245.5 miles and 4h 28m.
Your first comfortable stop window is around 54 miles from Roma, 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 Purple Heart Trail for about 144.4 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 9
5 decision points cluster between mile 0 and 244.3 — GPS handles the exact turns, but know they're coming. Your lane choice matters more than the turn itself.
4
0 mi into trip|~0m in|East Franklin Avenue
Turn left onto East Franklin Avenue
Navigation decision point
4
0.1 mi into trip|~0m in|US 83 / North Garcia Street
Turn left onto US 83 / North Garcia Street
Navigation decision point
4
86.4 mi into trip|~1h 39m in|South Meadow Avenue
Turn left onto South Meadow Avenue
Navigation decision point
4
88.5 mi into trip|~1h 44m in|US 83 / Guadalupe Street
Turn left onto US 83 / Guadalupe Street
Navigation decision point
7
244.3 mi into trip|~4h 26m in
Take the exit toward Spur 536: South Alamo Street
Exit ramp - move to the correct lane early. Lane positioning matters here
Use the straight / slight right lanes.
Exit 155A
Toward Spur 536: South Alamo Street
Fuel & Cost
Regular Gas
$37.10 one way
$74.19 round trip
$3.84/gal25.4 MPG avg86 kg CO2
Fuel Type
$/gal
One Way
Round Trip
midgrade
$4.20
$40.60
$81.21
premium
$4.54
$43.83
$87.66
diesel
$5.61
$54.20
$108.41
No toll roads detected on this route.
Estimated Trip Cost (one way, 1 person)
Fuel
$37
Meals
$25–$50
Total
$62–$87
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 85.9 kg one way.
Prices: EIA weekly data, 2026-04-13.
Driving Electric?
About $26 in charging
· 0 stops
· 66% less CO2
Vehicle Type
kWh
Stops
DC Fast
Home Charge
Average EV
73.6
0
$25.78
$11.78
Efficient EV
61.4
0
$21.48
$9.82
EV Truck/SUV
98.2
1
$34.37
$15.71
Gas CO2
86 kg
EV CO2
29 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 20, 2026
Origin
Roma, TX
Late night
in Roma on Tuesday
Local time
4:21 AM
CDT
Current temp
98°F
Unavailable
Live forecast
Destination
San Antonio, TX
Late night
in San Antonio on Tuesday
Local time
4:21 AM
CDT
Current temp
70°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
28 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 28m 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.
More Details
What kind of drive is this?
Expect a very different experience than a typical interstate haul, as this path relies on local roads rather than high-speed highways. You will navigate using East Franklin Avenue, North Garcia Street, and Highway 83, resulting in a route with a 0% highway share. Because the longest stretch on East Franklin Avenue is 0 miles, you should be prepared for frequent turns and a more technical driving experience. This is a hands-on drive that demands your full attention, as the road character remains consistent and local throughout the entire 249.9-mile distance. You will find that the constant adjustments required to stay on route make this a uniquely engaging drive compared to monotonous, straight-line highway travel.
32% highway, the rest on surface roads — varied driving throughout.
18 navigation steps total — most of the decisions cluster near the start and finish.
Longest single stretch: 144.4 mi on Purple Heart Trail.
How Hard Is This Drive?
4/10
This route mixes highway mileage with some local-road sections near the start or finish. There are only a few real navigation decisions along the way. The trickiest moment comes early in the drive near East Franklin Avenue.
Driving Effort4/10
Easy - simple navigation with a manageable amount of wheel time
Balances navigation complexity with total wheel time.
This is a straightforward 4h 28m drive. You will face about 9 decision points, but nothing that requires special attention if you follow navigation.
Where does it get tricky?
The main spots that need attention: near the start (East Franklin Avenue): Navigation decision point; at 0.1 miles (US 83 / North Garcia Street): Navigation decision point; at 86.4 miles (South Meadow Avenue): Navigation decision point.
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
The longest stretch is about 144.4 miles on Purple Heart Trail. 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.
Yes, with realistic expectations. Build in a stop roughly every 2 hours, have snacks and activities ready, and check the Nearby Places tabs for kid-friendly stops along the way.
The main spots that need attention: near the start (East Franklin Avenue): Navigation decision point; at 0.1 miles (US 83 / North Garcia Street): Navigation decision point; at 86.4 miles (South Meadow Avenue): Navigation decision point.
Possible but tiring. At 4.5 hours each way, an in-and-out day trip would put you behind the wheel for 9.0 hours — manageable with a long break at San Antonio, TX, but most travelers stay overnight.
