How far is San Leon, TX from Sweetwater, TX?
The driving distance from San Leon, TX to Sweetwater, TX is about 452.2 miles (727.8 km), with a travel time of about 08h 26m by car.
- The straight-line flight distance is about 384.8 miles (619.3 km).
- For a round trip, plan for roughly 16h 52m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 6:00 AM to 7:30 AM CST.
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 08h 26m.
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.
The fifth most populous city in Williamson County, Texas.
Route Weather Snapshot
Check the forecast at both ends before you head out.
Mostly Sunny
Sunny
Driving Route Map
The map below follows the saved road route between San Leon and Sweetwater.
Turn-by-Turn Driving Directions
Step-by-step road directions between San Leon and Sweetwater.
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1
Start on Avenue I
50 m · 9 sec · Avenue I
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2
Continue straight
8.7 mi · 14 min
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3
Turn left onto Parke Street
1677 ft · 29 sec · Parke Street
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4
Turn straight onto Main Street
136 m · 10 sec · Main Street
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5
Continue on Pine Street
1717 ft · 31 sec · Pine Street
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6
Continue on Pine Drive
1.4 mi · 2 min · Pine Drive
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7
Turn right onto Gulf Freeway Frontage Road
1.5 km · 2 min · Gulf Freeway Frontage Road
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8
Take the ramp slight left toward I 45 North
1035 ft · 25 sec
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9
Merge slight left onto South Gulf Freeway
28.3 mi · 33 min · South Gulf Freeway
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10
Take the exit slight left toward I 10 West: San Antonio
717 ft · 18 sec
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11
Merge slight left onto Katy Freeway
73.8 mi · 1 hr 21 min · Katy Freeway
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12
Take the exit slight right toward TX 71 West: La Grange, Austin
2832 ft · 33 sec
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13
Keep slight left
77.2 mi · 1 hr 22 min
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14
Continue on Bastrop Freeway
1.9 mi · 2 min · Bastrop Freeway
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15
Continue on East State Highway 71
2.2 mi · 3 min · East State Highway 71
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16
Take the exit slight right toward US 183 North, 183 Toll North: Lampasas
2773 ft · 1 min
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17
Merge slight left onto Bastrop Highway
2088 ft · 27 sec · Bastrop Highway
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18
Continue on Bergstrom Expressway
6.2 mi · 6 min · Bergstrom Expressway
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19
Continue straight
14.6 mi · 17 min
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20
Continue straight
14.6 mi · 15 min
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21
Continue on North US Highway 183
35.7 mi · 39 min · North US Highway 183
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22
Continue on South Key Avenue
2.3 mi · 5 min · South Key Avenue
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23
Continue on North US Highway 281
965 ft · 15 sec · North US Highway 281
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24
Keep slight left to continue on North US Highway 183
36.9 mi · 40 min · North US Highway 183
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25
At the end of the road, turn left
30.4 mi · 35 min
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26
Turn left onto Early Boulevard
1.7 mi · 2 min · Early Boulevard
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27
Continue on East Commerce Street
22 mi · 25 min · East Commerce Street
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28
Keep slight right to continue on Wallis Avenue
7.2 mi · 8 min · Wallis Avenue
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29
Turn right onto East Walnut Street
1.5 km · 1 min · East Walnut Street
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30
Continue on West Walnut Street
1 mi · 2 min · West Walnut Street
-
31
Continue on State Highway 153
69 mi · 1 hr 14 min · State Highway 153
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32
Keep slight right to continue on State Highway 153
6 m · 1 sec · State Highway 153
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33
Turn right onto State Highway 70
10.4 mi · 11 min · State Highway 70
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34
Continue on Lamar Street
2.3 mi · 4 min · Lamar Street
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35
Arrive at your destination
0 m · 1 sec · Lamar Street
Car Route Details
A richer read on the saved driving route between San Leon and Sweetwater.
Long-distance drive
This route is long enough that fuel, rest stops, weather, and timing matter more than any single maneuver.
TX 71 West
Keep slight left
77.2 mi · 01h 22m
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 Sunny leaving San Leon and Sunny near Sweetwater.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from San Leon to Sweetwater?
The road trip is about 452.2 miles (727.8 km) and usually takes 08h 26m 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?
Leander is a useful midpoint, sitting about 225.9 miles from San Leon and 226.3 miles from Sweetwater.
How much longer is the road route than the straight-line distance?
The direct path is about 384.8 miles (619.3 km), while the road route adds roughly 67.4 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 CST. 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 $55.06 one way or $110.12 round trip. Estimated CO2 is about 141.8 kg one way.
What should you check before leaving?
Before you leave, expect Mostly Sunny around San Leon and Sunny near Sweetwater.
Stop Ideas Near Leander
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 Leander.
Austin
Taylor
Killeen, Texas
Fort Hood, Texas
Flight Path Map
This map shows the direct air route between San Leon and Sweetwater. Straight-line distance: 384.8 mi (619.27 km).
#1 San Leon
Census designated place
| Population | 4,970 |
| Coordinates | 29.4832900, -94.9221500 |
| Altitude | 3 |
| Country | United States |
#2 Sweetwater
City in Texas, United States
| Population | 10,535 |
| Coordinates | 32.4709500, -100.4059400 |
| Altitude | 661 |
| Country | United States |
End: Sweetwater (-100.40594, 32.47095)
Estimated Travel Time
Distance: 728 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 15h 04m |
| 40 mph (64.37 km/h) | 11h 18m |
| 50 mph (80.47 km/h) | 09h 02m |
| 60 mph (96.56 km/h) | 07h 32m |
| 70 mph (112.65 km/h) | 06h 27m |
| 80 mph (129 km/h) | 05h 38m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.45 | $55.06 | $110.12 |
| Mid-grade | $3.95 | $63.09 | $126.18 |
| Premium | $4.33 | $69.14 | $138.28 |
| Diesel | $5.57 | $88.83 | $177.67 |
Assumes 8.3 L/100 km (about 28.3 MPG). CO2 is an estimate and varies by vehicle, fuel blend, traffic, and terrain.
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