How far is Buffalo, TX from San Antonio, TX?
The driving distance from Buffalo, TX to San Antonio, TX is about 199.3 miles (320.8 km), with a travel time of about 03h 22m by car.
- The straight-line flight distance is about 169 miles (271.9 km).
- For a round trip, plan for roughly 06h 44m 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 22m.
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 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 Showers And Thunderstorms Likely
Driving Route Map
The map below follows the saved road route between Buffalo and San Antonio.
Turn-by-Turn Driving Directions
Step-by-step road directions between Buffalo and San Antonio.
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1
Start on County Road 108
1.3 mi · 5 min · County Road 108
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2
Continue on County Road 108
112 m · 16 sec · County Road 108
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3
Continue on County Road 108
1 mi · 4 min · County Road 108
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4
Turn left onto County Road 102
1.1 mi · 4 min · County Road 102
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5
Turn right
36 m · 7 sec
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6
Turn left
1.4 km · 3 min
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7
Turn left
628 ft · 28 sec
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8
Turn right
128 m · 19 sec
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9
Turn slight left
87 m · 14 sec
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10
Turn right onto County Road 102
1.1 mi · 4 min · County Road 102
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11
Turn right
5.5 mi · 6 min
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12
Turn left onto 8th Street
40.5 mi · 46 min · 8th Street
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13
Turn left onto United States Highway 87
3.4 mi · 4 min · United States Highway 87
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14
Continue on Commerce Street
1347 ft · 23 sec · Commerce Street
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15
Turn right onto Bridge Street
14.6 mi · 17 min · Bridge Street
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16
Continue on North US Highway 87
13.2 mi · 15 min · North US Highway 87
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17
Continue on Fort McKavitt Street
1.3 km · 56 sec · Fort McKavitt Street
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18
Take the exit slight right
51 m · 5 sec
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19
Merge slight left onto San Antonio Street
1.1 mi · 1 min · San Antonio Street
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20
Continue on South US Highway 87
39.7 mi · 44 min · South US Highway 87
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21
At the end of the road, turn left onto West Main Street
1.5 mi · 4 min · West Main Street
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22
Turn right onto South Washington Street
1.1 mi · 2 min · South Washington Street
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23
Continue on South US Highway 87
20.2 mi · 23 min · South US Highway 87
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24
Take the ramp left toward I 10 East: San Antonio
27.2 mi · 28 min
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25
Keep slight right
17.4 mi · 20 min
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26
Keep slight right to continue on McDermott Freeway
1.7 mi · 2 min · McDermott Freeway
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27
Take the exit slight right toward Santa Rosa Street, Downtown
2505 ft · 1 min
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28
Turn straight onto North Pecos-La Trinidad
804 ft · 16 sec · North Pecos-La Trinidad
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29
Keep slight right to continue on North Pecos-La Trinidad
2963 ft · 1 min · North Pecos-La Trinidad
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30
Turn left onto Dolorosa Street
2582 ft · 56 sec · Dolorosa Street
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31
Arrive at your destination
0 m · 1 sec · Dolorosa Street
Car Route Details
A richer read on the saved driving route between Buffalo 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.
8th Street
Turn left onto 8th Street
40.5 mi · 00h 46m
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 leaving Buffalo and Chance Showers And Thunderstorms then Showers And Thunderstorms Likely near San Antonio.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Buffalo to San Antonio?
The road trip is about 199.3 miles (320.8 km) and usually takes 03h 22m 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?
Mason is a useful midpoint, sitting about 98 miles from Buffalo and 101.3 miles from San Antonio.
How much longer is the road route than the straight-line distance?
The direct path is about 169 miles (271.9 km), while the road route adds roughly 30.3 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 10:16 AM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $26.57 one way or $53.13 round trip. Estimated CO2 is about 62.5 kg one way.
What should you check before leaving?
Before you leave, expect Chance Showers And Thunderstorms around Buffalo and Chance Showers And Thunderstorms then Showers And Thunderstorms Likely near San Antonio.
Flight Path Map
This map shows the direct air route between Buffalo and San Antonio. Straight-line distance: 168.94 mi (271.88 km).
#1 Buffalo
City in Leon County, Texas
| Population | 1,910 |
| Coordinates | 31.7907000, -99.2078300 |
| Altitude | 458 |
| 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: 321 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 06h 38m |
| 40 mph (64.37 km/h) | 04h 59m |
| 50 mph (80.47 km/h) | 03h 59m |
| 60 mph (96.56 km/h) | 03h 19m |
| 70 mph (112.65 km/h) | 02h 50m |
| 80 mph (129 km/h) | 02h 29m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.78 | $26.57 | $53.13 |
| Mid-grade | $4.25 | $29.89 | $59.78 |
| Premium | $4.59 | $32.27 | $64.55 |
| Diesel | $3.99 | $28.07 | $56.14 |
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 20, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.