How far is Austin, TX from Sullivan City, TX?
The driving distance from Austin, TX to Sullivan City, TX is about 334.5 miles (538.4 km), with a travel time of about 06h 03m by car.
- The straight-line flight distance is about 280.1 miles (450.8 km).
- For a round trip, plan for roughly 12h 06m 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 03m.
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, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Chance Showers And Thunderstorms
Mostly Sunny then Slight Chance Showers And Thunderstorms
Driving Route Map
The map below follows the saved road route between Austin and Sullivan City.
Turn-by-Turn Driving Directions
Step-by-step road directions between Austin and Sullivan City.
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1
Start on East 5th Street
2551 ft · 1 min · East 5th Street
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2
At the end of the road, turn right onto North Interstate 35
1893 ft · 40 sec · North Interstate 35
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3
Take the ramp slight left toward I 35 South
899 ft · 22 sec
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4
Merge slight left onto Purple Heart Trail
46.4 mi · 50 min · Purple Heart Trail
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5
Continue on Interstate Highway 35
1.7 mi · 2 min · Interstate Highway 35
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6
Continue on Purple Heart Trail
11.9 mi · 13 min · Purple Heart Trail
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7
Continue on North Pan Am Expressway
10 mi · 12 min · North Pan Am Expressway
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8
Keep slight right to continue on Connally Loop
11 mi · 12 min · Connally Loop
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9
Take the exit slight right toward I 37, US 281 North: San Antonio, Corpus Christi
1184 ft · 29 sec
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10
Keep slight left to continue on I 37 South: Corpus Christi
2457 ft · 1 min
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11
Merge slight left
60.5 mi · 1 hr 1 min
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12
Take the exit slight right toward US 281 South
15.2 mi · 19 min
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13
Keep slight left to continue on South Nueces Street
66.2 mi · 1 hr 10 min · South Nueces Street
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14
Keep slight left
9.5 mi · 10 min
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15
Keep slight left to continue on Falfurrias Expressway
55.8 mi · 59 min · Falfurrias Expressway
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16
Keep slight left
17.6 mi · 19 min
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17
Take the exit slight right toward US 281 South, TX 495: Pharr
1.3 km · 2 min
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18
Merge slight right
26.3 mi · 30 min
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19
Arrive at your destination
0 m · 1 sec · East Expressway 83
Car Route Details
A richer read on the saved driving route between Austin and Sullivan City.
Long-distance drive
This route is long enough that fuel, rest stops, weather, and timing matter more than any single maneuver.
South Nueces Street
Keep slight left to continue on South Nueces Street
66.2 mi · 01h 10m
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.
Chance Showers And Thunderstorms leaving Austin and Mostly Sunny then Slight Chance Showers And Thunderstorms near Sullivan City.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Austin to Sullivan City?
The road trip is about 334.5 miles (538.4 km) and usually takes 06h 03m 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?
George West is a useful midpoint, sitting about 167.6 miles from Austin and 166.9 miles from Sullivan City.
How much longer is the road route than the straight-line distance?
The direct path is about 280.1 miles (450.8 km), while the road route adds roughly 54.4 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 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 $44.59 one way or $89.18 round trip. Estimated CO2 is about 104.9 kg one way.
What should you check before leaving?
Before you leave, expect Chance Showers And Thunderstorms around Austin and Mostly Sunny then Slight Chance Showers And Thunderstorms near Sullivan City.
Flight Path Map
This map shows the direct air route between Austin and Sullivan City. Straight-line distance: 280.14 mi (450.84 km).
#1 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 |
#2 Sullivan City
City in Hidalgo County, Texas, United States
| Population | 4,170 |
| Coordinates | 26.2775700, -98.5636300 |
| Altitude | 61 |
| Country | United States |
End: Sullivan City (-98.56363, 26.27757)
Estimated Travel Time
Distance: 538 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 11h 08m |
| 40 mph (64.37 km/h) | 08h 21m |
| 50 mph (80.47 km/h) | 06h 41m |
| 60 mph (96.56 km/h) | 05h 34m |
| 70 mph (112.65 km/h) | 04h 46m |
| 80 mph (129 km/h) | 04h 10m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.78 | $44.59 | $89.18 |
| Mid-grade | $4.25 | $50.17 | $100.35 |
| Premium | $4.59 | $54.17 | $108.35 |
| Diesel | $3.99 | $47.12 | $94.23 |
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 · Jun 03, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.