How far is San Antonio, TX from Big Sandy, TX?
The driving distance from San Antonio, TX to Big Sandy, TX is about 330.2 miles (531.4 km), with a travel time of about 06h 11m by car.
- The straight-line flight distance is about 296.3 miles (476.9 km).
- For a round trip, plan for roughly 12h 23m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 6:00 AM to 7:30 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 06h 11m.
Starting early still helps, but most travelers will want a longer stop or an overnight stay on a route this long.
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
Route Weather Snapshot
Check the forecast at both ends before you head out.
Mostly Cloudy
Mostly Cloudy
Driving Route Map
The map below follows the saved road route between San Antonio and Big Sandy.
Turn-by-Turn Driving Directions
Step-by-step road directions between San Antonio and Big Sandy.
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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
1.3 km · 56 sec · William J Bordelon Freeway
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8
Take the exit slight right toward I 35 North: Austin
2907 ft · 1 min
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9
Merge slight left onto North Pan Am Expressway
8.2 mi · 10 min · North Pan Am Expressway
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10
Keep slight left to continue on North Pan Am Expressway
7.4 mi · 8 min · North Pan Am Expressway
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11
Continue on Purple Heart Trail
11.9 mi · 13 min · Purple Heart Trail
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12
Continue on Interstate Highway 35
1.9 mi · 2 min · Interstate Highway 35
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13
Continue on Purple Heart Trail
47.8 mi · 52 min · Purple Heart Trail
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14
Keep slight right to continue on Purple Heart Trail
95.6 mi · 1 hr 40 min · Purple Heart Trail
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15
Continue on South Jack Kultgen Expressway
6 mi · 7 min · South Jack Kultgen Expressway
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16
Take the exit slight right toward US 84: Waco Drive, Bellmead Drive
1323 ft · 28 sec
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17
Turn straight onto North Jack Kultgen Expressway
1408 ft · 31 sec · North Jack Kultgen Expressway
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18
Turn right onto East Waco Drive
1793 ft · 53 sec · East Waco Drive
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19
Continue on Bellmead Drive
2.6 mi · 5 min · Bellmead Drive
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20
Continue on East US Highway 84
2.7 mi · 3 min · East US Highway 84
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21
Continue on State Highway 31
16.9 mi · 17 min · State Highway 31
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22
Continue on Hubbard Bypass
5.3 mi · 5 min · Hubbard Bypass
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23
Continue on State Highway 31
18.9 mi · 21 min · State Highway 31
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24
Turn right onto Corsicana Bypass
11.8 mi · 14 min · Corsicana Bypass
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25
Turn right onto East State Highway 31
9.3 mi · 11 min · East State Highway 31
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26
Continue on Northeast 2nd Street
9.9 mi · 11 min · Northeast 2nd Street
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27
Continue on West Royall Boulevard
5.3 mi · 6 min · West Royall Boulevard
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28
Continue on State Highway 31 West
4.1 mi · 5 min · State Highway 31 West
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29
Turn left
1180 ft · 34 sec
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30
Merge slight left onto Jed Robinson Loop
6.2 mi · 7 min · Jed Robinson Loop
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31
Take the exit slight right
1465 ft · 47 sec
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32
Turn left onto State Highway 31 East
21.1 mi · 24 min · State Highway 31 East
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33
Continue on West Highway 31
2 mi · 2 min · West Highway 31
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34
Continue on State Highway 31 West
5.6 mi · 7 min · State Highway 31 West
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35
Continue on Chandler Highway
1.9 mi · 2 min · Chandler Highway
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36
Continue on West Front Street
2.4 mi · 4 min · West Front Street
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37
Turn left onto South Beckham Avenue
1.5 km · 2 min · South Beckham Avenue
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38
Continue on East Gentry Parkway
1.6 mi · 2 min · East Gentry Parkway
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39
Continue on US Highway 271
5.5 mi · 7 min · US Highway 271
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40
Turn left onto State Highway 155 North
4.9 mi · 6 min · State Highway 155 North
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41
Continue on South Main Street
1.1 mi · 2 min · South Main Street
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42
Continue on State Highway 155 North
6.7 mi · 7 min · State Highway 155 North
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43
At the end of the road, turn right onto West Broadway Street
1.4 km · 1 min · West Broadway Street
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44
Turn left onto North Tyler Street
26 m · 1 sec · North Tyler Street
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45
Arrive at your destination
0 m · 1 sec · North Tyler Street
Car Route Details
A richer read on the saved driving route between San Antonio and Big Sandy.
Long-distance drive
This route is long enough that fuel, rest stops, weather, and timing matter more than any single maneuver.
Purple Heart Trail
Keep slight right to continue on Purple Heart Trail
95.6 mi · 01h 40m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
Better with a longer stop
This route is long enough that most travelers will be better off planning an overnight stay or a more deliberate stop window.
Mostly Cloudy leaving San Antonio and Mostly Cloudy near Big Sandy.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from San Antonio to Big Sandy?
The road trip is about 330.2 miles (531.4 km) and usually takes 06h 11m in normal driving conditions.
Is this a same-day trip or an overnight route?
This route is long enough that most travelers will be better off planning an overnight stay or a more deliberate stop window.
What is the halfway point on this route?
Lorena is a useful midpoint, sitting about 165.2 miles from San Antonio and 165 miles from Big Sandy.
How much longer is the road route than the straight-line distance?
The direct path is about 296.3 miles (476.9 km), while the road route adds roughly 33.9 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 7:30 AM CDT. Starting early still helps, but most travelers will want a longer stop or an overnight stay on a route this long.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $44.03 one way or $88.05 round trip. Estimated CO2 is about 103.5 kg one way.
What should you check before leaving?
Before you leave, expect Mostly Cloudy around San Antonio and Mostly Cloudy near Big Sandy.
Stop Ideas Near Lorena
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 Lorena.
McGregor
Waco, TX
Temple
Killeen, Texas
Flight Path Map
This map shows the direct air route between San Antonio and Big Sandy. Straight-line distance: 296.34 mi (476.91 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 Big Sandy
Town of the United States
| Population | 1,412 |
| Coordinates | 32.5837500, -95.1088300 |
| Altitude | 112 |
| Country | United States |
End: Big Sandy (-95.10883, 32.58375)
Estimated Travel Time
Distance: 531 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 11h 00m |
| 40 mph (64.37 km/h) | 08h 15m |
| 50 mph (80.47 km/h) | 06h 36m |
| 60 mph (96.56 km/h) | 05h 30m |
| 70 mph (112.65 km/h) | 04h 43m |
| 80 mph (129 km/h) | 04h 07m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.78 | $44.03 | $88.05 |
| Mid-grade | $4.25 | $49.54 | $99.07 |
| Premium | $4.59 | $53.49 | $106.97 |
| Diesel | $3.99 | $46.52 | $93.04 |
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.