How far is San Antonio, TX from Hamilton, TX?
The driving distance from San Antonio, TX to Hamilton, TX is about 166.2 miles (267.4 km), with a travel time of about 03h 17m by car.
- The straight-line flight distance is about 159 miles (255.9 km).
- For a round trip, plan for roughly 06h 34m 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 17m.
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.
Chance Showers And Thunderstorms then Slight Chance Showers And Thunderstorms
Slight Chance Showers And Thunderstorms
Driving Route Map
The map below follows the saved road route between San Antonio and Hamilton.
Turn-by-Turn Driving Directions
Step-by-step road directions between San Antonio and Hamilton.
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1
Start on Dolorosa Street
44 m · 5 sec · Dolorosa Street
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2
Continue on West Market Street
1893 ft · 42 sec · West Market Street
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3
Continue on East Market Street
2143 ft · 46 sec · East Market Street
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4
Turn left
111 m · 13 sec
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5
Turn straight onto East Commerce Street
66 m · 13 sec · East Commerce Street
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6
Take the ramp sharp left toward US 281 North, I 37 North
1159 ft · 28 sec
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7
Merge slight left onto William J Bordelon Freeway
1.5 km · 1 min · William J Bordelon Freeway
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8
Continue on McAllister Freeway
14.9 mi · 18 min · McAllister Freeway
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9
Keep slight left to continue on US 281 HOV Lane
2.9 mi · 3 min · US 281 HOV Lane
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10
Merge slight right
100.6 mi · 1 hr 59 min
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11
At the end of the road, turn left onto South Key Avenue
1.6 mi · 3 min · South Key Avenue
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12
Continue on North US Highway 281
965 ft · 15 sec · North US Highway 281
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13
Keep slight right to continue on North US Highway 281
42.9 mi · 49 min · North US Highway 281
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14
Continue on South Rice Street
1.1 mi · 1 min · South Rice Street
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15
Turn right onto East Main Street
17 m · 2 sec · East Main Street
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16
Arrive at your destination
0 m · 1 sec · East Main Street
Car Route Details
A richer read on the saved driving route between San Antonio and Hamilton.
Highway-focused drive
Most of the mileage stays on named highways, so the important moments are ramps, exits, merges, and the final local approach.
US 281 HOV Lane
Merge slight right
101 mi · 01h 59m
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.
Chance Showers And Thunderstorms then Slight Chance Showers And Thunderstorms leaving San Antonio and Slight Chance Showers And Thunderstorms near Hamilton.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from San Antonio to Hamilton?
The road trip is about 166.2 miles (267.4 km) and usually takes 03h 17m 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 San Antonio and 82.9 miles from Hamilton.
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 7.2 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 10:26 AM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $22.14 one way or $44.29 round trip. Estimated CO2 is about 52.1 kg one way.
What should you check before leaving?
Before you leave, expect Chance Showers And Thunderstorms then Slight Chance Showers And Thunderstorms around San Antonio and Slight Chance Showers And Thunderstorms near Hamilton.
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.
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Killeen, Texas
San Marcos Station
Flight Path Map
This map shows the direct air route between San Antonio and Hamilton. Straight-line distance: 159.03 mi (255.94 km).
#1 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 |
#2 Hamilton
City in Hamilton County, Texas, United States
| Population | 3,025 |
| Coordinates | 31.7037700, -98.1239200 |
| Altitude | 356 |
| Country | United States |
End: Hamilton (-98.12392, 31.70377)
Estimated Travel Time
Distance: 267 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 05h 32m |
| 40 mph (64.37 km/h) | 04h 09m |
| 50 mph (80.47 km/h) | 03h 19m |
| 60 mph (96.56 km/h) | 02h 46m |
| 70 mph (112.65 km/h) | 02h 22m |
| 80 mph (129 km/h) | 02h 04m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.78 | $22.14 | $44.29 |
| Mid-grade | $4.25 | $24.92 | $49.83 |
| Premium | $4.59 | $26.90 | $53.81 |
| Diesel | $3.99 | $23.40 | $46.80 |
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.