How far is Fort Clark Springs, TX from Austin, TX?
The driving distance from Fort Clark Springs, TX to Austin, TX is about 217.7 miles (350.3 km), with a travel time of about 03h 38m by car.
- The straight-line flight distance is about 173.8 miles (279.7 km).
- For a round trip, plan for roughly 07h 16m 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 38m.
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.
Town in the U.
Route Weather Snapshot
Check the forecast at both ends before you head out.
Chance Rain Showers
Mostly Sunny
Driving Route Map
The map below follows the saved road route between Fort Clark Springs and Austin.
Turn-by-Turn Driving Directions
Step-by-step road directions between Fort Clark Springs and Austin.
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1
Start on Colony Row
600 ft · 26 sec · Colony Row
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2
Turn right onto McClernand Road
113 m · 22 sec · McClernand Road
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3
Turn left onto Fort Clark Road
1202 ft · 55 sec · Fort Clark Road
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4
At the end of the road, turn right onto East Military Highway
2339 ft · 30 sec · East Military Highway
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5
Continue on East US Highway 90
37.5 mi · 43 min · East US Highway 90
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6
Continue on West Main Street
4.9 mi · 6 min · West Main Street
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7
Continue on East US Highway 90
37.7 mi · 43 min · East US Highway 90
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8
Continue on 19th Street
2.1 mi · 4 min · 19th Street
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9
Continue on US Highway 90 East
25.4 mi · 29 min · US Highway 90 East
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10
Continue on Cleto Rodriguez Freeway
3.3 mi · 4 min · Cleto Rodriguez Freeway
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11
Take the exit slight right toward I 410 North, TX 16 North
1.3 mi · 3 min
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12
Merge slight left onto Connally Loop
19.8 mi · 23 min · Connally Loop
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13
Keep slight left to continue on I 35 North: Austin
1694 ft · 41 sec
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14
Merge slight left onto North Pan Am Expressway
6.8 mi · 8 min · North Pan Am Expressway
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15
Continue on Purple Heart Trail
11.9 mi · 13 min · Purple Heart Trail
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16
Continue on Interstate Highway 35
1.9 mi · 2 min · Interstate Highway 35
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17
Continue on Purple Heart Trail
46.7 mi · 51 min · Purple Heart Trail
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18
Take the exit slight right toward 6th - 12th Streets
665 ft · 24 sec
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19
Turn left onto East 6th Street
2863 ft · 1 min · East 6th Street
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20
Turn left onto Congress Avenue
109 m · 18 sec · Congress Avenue
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21
Turn left onto East 5th Street
8 m · 1 sec · East 5th Street
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22
Arrive at your destination
0 m · 1 sec · East 5th Street
Car Route Details
A richer read on the saved driving route between Fort Clark Springs and Austin.
Straightforward drive
The saved road route has a manageable number of maneuvers and should be easy to follow with normal attention to signs.
Purple Heart Trail
Continue on Purple Heart Trail
46.7 mi · 00h 51m
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 Rain Showers leaving Fort Clark Springs and Mostly Sunny near Austin.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Fort Clark Springs to Austin?
The road trip is about 217.7 miles (350.3 km) and usually takes 03h 38m 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?
Castroville is a useful midpoint, sitting about 100.6 miles from Fort Clark Springs and 117.1 miles from Austin.
How much longer is the road route than the straight-line distance?
The direct path is about 173.8 miles (279.7 km), while the road route adds roughly 43.9 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 8:00 AM CDT. If you want a more comfortable same-day return, try to leave by 9:44 AM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $29.48 one way or $58.97 round trip. Estimated CO2 is about 68.3 kg one way.
What should you check before leaving?
Before you leave, expect Chance Rain Showers around Fort Clark Springs and Mostly Sunny near Austin.
Stop Ideas Near Castroville
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 Castroville.
San Antonio Station
San Marcos Station
Flight Path Map
This map shows the direct air route between Fort Clark Springs and Austin. Straight-line distance: 173.82 mi (279.74 km).
#1 Fort Clark Springs
Situated in southwest Texas within Kinney County at an elevation of 1152 feet, this locality is centered around the large artesian Las Moras Springs.
| Population | 0 |
| Coordinates | 29.3060700, -100.4220200 |
| Altitude | 351 |
| Country | United States |
#2 Austin
The eleventh most populous city in the United States and the center of the Austin metropolitan area.
| Population | 995,484 |
| Coordinates | 30.2671500, -97.7430600 |
| Altitude | 149 |
| Country | United States |
End: East 5th Street (-97.743073, 30.267115)
Estimated Travel Time
Distance: 350 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 07h 15m |
| 40 mph (64.37 km/h) | 05h 26m |
| 50 mph (80.47 km/h) | 04h 21m |
| 60 mph (96.56 km/h) | 03h 37m |
| 70 mph (112.65 km/h) | 03h 06m |
| 80 mph (129 km/h) | 02h 42m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.84 | $29.48 | $58.97 |
| Mid-grade | $4.35 | $33.38 | $66.77 |
| Premium | $4.72 | $36.27 | $72.55 |
| Diesel | $5.78 | $44.36 | $88.72 |
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 · Oct 15, 2026