How far is Hamilton, TX from San Antonio, TX?
The driving distance from Hamilton, TX to San Antonio, TX is about 167 miles (268.8 km), with a travel time of about 03h 00m by car.
- The straight-line flight distance is about 159 miles (255.9 km).
- For a round trip, plan for roughly 06h 01m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 6:00 AM to 8:00 AM CDT.
Reverse, save, or send this route
This drive is better planned with a longer stop or an overnight stay. Copy the route link, send it to another device, or print a clean version before you head out.
This drive is better planned with a longer stop or an overnight stay.
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 03h 00m.
An early departure helps you fit a real stop into the day without turning the return into a late-night drive.
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 Burnet County, Texas, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Slight 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 Hamilton and San Antonio.
Turn-by-Turn Driving Directions
Step-by-step road directions between Hamilton and San Antonio.
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1
Start on East Main Street
17 m · 9 sec · East Main Street
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2
Turn left onto South Rice Street
1.1 mi · 1 min · South Rice Street
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3
Continue on South US Highway 281
43.1 mi · 49 min · South US Highway 281
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4
Continue on North Key Avenue
1.6 mi · 3 min · North Key Avenue
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5
Turn right onto South US Highway 281
20 mi · 22 min · South US Highway 281
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6
Continue on North Water Street
3.6 mi · 6 min · North Water Street
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7
Continue on South US Highway 281
46 mi · 54 min · South US Highway 281
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8
Continue on Main Street
1.2 mi · 2 min · Main Street
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9
Continue on South US Highway 281
26.6 mi · 32 min · South US Highway 281
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10
Turn straight
3.1 mi · 3 min
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11
Keep slight left to continue on US 281 HOV Lane
2.9 mi · 3 min · US 281 HOV Lane
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12
Merge slight right
14.8 mi · 18 min
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13
Continue on William J Bordelon Freeway
1.1 mi · 1 min · William J Bordelon Freeway
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14
Take the exit slight right toward Commerce Street, Downtown
797 ft · 19 sec
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15
Keep slight right to continue on Downtown, The Alamo, Visitor Information Center
55 m · 4 sec
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16
Turn slight right onto East Commerce Street
1.3 km · 2 min · East Commerce Street
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17
Turn left onto Military Plaza
119 m · 16 sec · Military Plaza
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18
Turn left onto Dolorosa Street
100 m · 8 sec · Dolorosa Street
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19
Arrive at your destination
0 m · 1 sec · Dolorosa Street
Car Route Details
A richer read on the saved driving route between Hamilton 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.
South US Highway 281
Continue on South US Highway 281
46 mi · 00h 54m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
A longer out-and-back drive
This is still possible in one day, but it becomes a long driving day. Leaving early and planning your stop window matters more here.
Slight Chance Showers And Thunderstorms leaving Hamilton 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 Hamilton to San Antonio?
The road trip is about 167 miles (268.8 km) and usually takes 03h 00m in normal driving conditions.
Is this a same-day trip or an overnight route?
This is still possible in one day, but it becomes a long driving day. Leaving early and planning your stop window matters more here.
What is the halfway point on this route?
Meadowlakes is a useful midpoint, sitting about 83.3 miles from Hamilton and 83.7 miles from San Antonio.
How much longer is the road route than the straight-line distance?
The direct path is about 159 miles (255.9 km), while the road route adds roughly 8 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 6:00 AM to 8:00 AM CDT. If you want a more comfortable same-day return, try to leave by 10:58 AM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $22.26 one way or $44.52 round trip. Estimated CO2 is about 52.3 kg one way.
What should you check before leaving?
Before you leave, expect Slight Chance Showers And Thunderstorms around Hamilton and Chance Showers And Thunderstorms then Slight Chance Showers And Thunderstorms near San Antonio.
Stop Ideas Near Meadowlakes
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 Meadowlakes.
Austin
Fort Hood, Texas
Killeen, Texas
San Marcos Station
Flight Path Map
This map shows the direct air route between Hamilton and San Antonio. Straight-line distance: 159.03 mi (255.94 km).
#1 Hamilton
City in Hamilton County, Texas, United States
| Population | 3,025 |
| Coordinates | 31.7037700, -98.1239200 |
| Altitude | 356 |
| 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: 269 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 05h 33m |
| 40 mph (64.37 km/h) | 04h 10m |
| 50 mph (80.47 km/h) | 03h 20m |
| 60 mph (96.56 km/h) | 02h 47m |
| 70 mph (112.65 km/h) | 02h 23m |
| 80 mph (129 km/h) | 02h 05m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.78 | $22.26 | $44.52 |
| Mid-grade | $4.25 | $25.04 | $50.09 |
| Premium | $4.59 | $27.04 | $54.08 |
| Diesel | $3.99 | $23.52 | $47.04 |
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.