How far is Sinton, TX from San Antonio, TX?
The driving distance from Sinton, TX to San Antonio, TX is about 128.4 miles (206.6 km), with a travel time of about 01h 55m by car.
- The straight-line flight distance is about 112.9 miles (181.7 km).
- For a round trip, plan for roughly 03h 51m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 8:00 AM to 10:00 AM CDT.
Reverse, save, or send this route
This route works well as a day trip with time at the destination. Copy the route link, send it to another device, or print a clean version before you head out.
This route works well as a day trip with time at the destination.
Flight Distance
Driving Distance
Gas Cost Calculator
Leave and Arrive Planner
Pick a departure time to see your estimated arrival and same-day return window.
Drive time stays fixed at 01h 55m.
A morning start gives you useful time at the destination and keeps the return out of the late evening.
You are leaving earlier than the recommended window, which gives you extra margin for breaks and traffic.
Halfway Point
A useful midpoint for breaks, coffee, or meeting in the middle.
City in Live Oak County, Texas, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Chance Showers And Thunderstorms
Chance Showers And Thunderstorms then Slight Chance Showers And Thunderstorms
Driving Route Map
The map below follows the saved road route between Sinton and San Antonio.
Turn-by-Turn Driving Directions
Step-by-step road directions between Sinton and San Antonio.
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1
Start on East Sinton Street
16.4 mi · 22 min · East Sinton Street
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2
Turn right onto I-37 Access Road
1127 ft · 23 sec · I-37 Access Road
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3
Take the ramp slight left
939 ft · 23 sec
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4
Merge slight left
110 mi · 1 hr 52 min
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5
Take the exit slight right toward Commerce Street, Downtown, The Alamo
1358 ft · 33 sec
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6
Turn straight onto Interstate 37 South
116 m · 12 sec · Interstate 37 South
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7
Turn left onto East Commerce Street
1.4 km · 2 min · East Commerce Street
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8
Turn left onto Military Plaza
119 m · 16 sec · Military Plaza
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9
Turn left onto Dolorosa Street
100 m · 8 sec · Dolorosa Street
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10
Arrive at your destination
0 m · 1 sec · Dolorosa Street
Car Route Details
A richer read on the saved driving route between Sinton and San Antonio.
Highway-focused drive
Most of the mileage stays on named highways, so the important moments are ramps, exits, merges, and the final local approach.
I-37 Access Road
Merge slight left
110 mi · 01h 52m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
A comfortable day-trip route
This route works well as a day trip. You can leave in the morning, spend meaningful time at the destination, and still return the same day.
Chance Showers And Thunderstorms leaving Sinton and Chance Showers And Thunderstorms then Slight Chance Showers And Thunderstorms near San Antonio.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Sinton to San Antonio?
The road trip is about 128.4 miles (206.6 km) and usually takes 01h 55m in normal driving conditions.
Is this a same-day trip or an overnight route?
This route works well as a day trip. You can leave in the morning, spend meaningful time at the destination, and still return the same day.
What is the halfway point on this route?
Three Rivers is a useful midpoint, sitting about 64.2 miles from Sinton and 64.2 miles from San Antonio.
How much longer is the road route than the straight-line distance?
The direct path is about 112.9 miles (181.7 km), while the road route adds roughly 15.5 extra miles because roads do not follow the straight air line.
When is the best time to leave for this route?
A good departure window is usually 8:00 AM to 10:00 AM CDT. If you want a more comfortable same-day return, try to leave by 2:38 PM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $17.12 one way or $34.24 round trip. Estimated CO2 is about 40.3 kg one way.
What should you check before leaving?
Before you leave, expect Chance Showers And Thunderstorms around Sinton and Chance Showers And Thunderstorms then Slight Chance Showers And Thunderstorms near San Antonio.
Stop Ideas Near Three Rivers
Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.
Transit and Meeting Points
Useful pickup, handoff, or rendezvous points close to Three Rivers.
San Antonio Station
Flight Path Map
This map shows the direct air route between Sinton and San Antonio. Straight-line distance: 112.9 mi (181.7 km).
#1 Sinton
City in Texas, United States
| Population | 5,281 |
| Coordinates | 28.0366800, -97.5091600 |
| Altitude | 15 |
| Country | United States |
#2 San Antonio
The seventh most populous city in the United States and the center of the San Antonio metropolitan area.
| Population | 1,567,118 |
| Coordinates | 29.4241200, -98.4936300 |
| Altitude | 198 |
| Country | United States |
End: Dolorosa Street (-98.493645, 29.424163)
Estimated Travel Time
Distance: 207 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 04h 16m |
| 40 mph (64.37 km/h) | 03h 12m |
| 50 mph (80.47 km/h) | 02h 34m |
| 60 mph (96.56 km/h) | 02h 08m |
| 70 mph (112.65 km/h) | 01h 50m |
| 80 mph (129 km/h) | 01h 36m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.78 | $17.12 | $34.24 |
| Mid-grade | $4.25 | $19.26 | $38.52 |
| Premium | $4.59 | $20.80 | $41.59 |
| Diesel | $3.99 | $18.09 | $36.18 |
Assumes 8.3 L/100 km (about 28.3 MPG). CO2 is an estimate and varies by vehicle, fuel blend, traffic, and terrain.
Prices in Texas · Apr 23, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.