How far is Montopolis, TX from Sullivan City, TX?
The driving distance from Montopolis, TX to Sullivan City, TX is about 344 miles (553.6 km), with a travel time of about 06h 04m by car.
- The straight-line flight distance is about 279.1 miles (449.2 km).
- For a round trip, plan for roughly 12h 09m 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 04m.
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.
Mostly Cloudy
Mostly Sunny
Driving Route Map
The map below follows the saved road route between Montopolis and Sullivan City.
Turn-by-Turn Driving Directions
Step-by-step road directions between Montopolis and Sullivan City.
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1
Start on 183 Toll South: Lockhart
67 m · 5 sec
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2
Merge slight left onto Bergstrom Expressway
1.3 km · 47 sec · Bergstrom Expressway
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3
Continue on Bastrop Highway
11.7 mi · 15 min · Bastrop Highway
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4
Take the ramp straight toward TX 130 Toll South: Lockhart, San Antonio
1565 ft · 38 sec
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5
Merge slight left onto Pickle Parkway
37.4 mi · 33 min · Pickle Parkway
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6
Keep slight right to continue on I 10 West: San Antonio
3262 ft · 1 min
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7
Merge slight left
11.1 mi · 11 min
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8
Continue straight
9.4 mi · 9 min
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9
Keep slight left
12 mi · 13 min
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10
Keep slight right to continue on Connally Loop
1.4 mi · 2 min · Connally Loop
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11
Merge slight left onto Connally Loop
6.7 mi · 7 min · Connally Loop
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12
Take the exit slight right toward I 37, US 281 North: San Antonio, Corpus Christi
1184 ft · 29 sec
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13
Keep slight left to continue on I 37 South: Corpus Christi
2457 ft · 1 min
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14
Merge slight left
60.5 mi · 1 hr 1 min
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15
Take the exit slight right toward US 281 South
15.2 mi · 19 min
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16
Keep slight left to continue on South Nueces Street
66.2 mi · 1 hr 10 min · South Nueces Street
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17
Keep slight left
9.5 mi · 10 min
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18
Keep slight left to continue on Falfurrias Expressway
55.8 mi · 59 min · Falfurrias Expressway
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19
Keep slight left
17.6 mi · 19 min
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20
Take the exit slight right toward US 281 South, TX 495: Pharr
1.3 km · 2 min
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21
Merge slight right
26.3 mi · 30 min
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22
Arrive at your destination
0 m · 1 sec · East Expressway 83
Car Route Details
A richer read on the saved driving route between Montopolis 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.
Mostly Cloudy leaving Montopolis and Mostly Sunny near Sullivan City.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Montopolis to Sullivan City?
The road trip is about 344 miles (553.6 km) and usually takes 06h 04m 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 172.4 miles from Montopolis and 171.6 miles from Sullivan City.
How much longer is the road route than the straight-line distance?
The direct path is about 279.1 miles (449.2 km), while the road route adds roughly 64.9 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 $45.88 one way or $91.75 round trip. Estimated CO2 is about 107.9 kg one way.
What should you check before leaving?
Before you leave, expect Mostly Cloudy around Montopolis and Mostly Sunny near Sullivan City.
Flight Path Map
This map shows the direct air route between Montopolis and Sullivan City. Straight-line distance: 279.1 mi (449.17 km).
#1 Montopolis
This Travis County community, situated at an elevation of 469 feet, is known for its Colorado River industrial areas.
| Population | 912,791 |
| Coordinates | 30.2432700, -97.6905600 |
| Altitude | 143 |
| 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: 554 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 11h 27m |
| 40 mph (64.37 km/h) | 08h 35m |
| 50 mph (80.47 km/h) | 06h 52m |
| 60 mph (96.56 km/h) | 05h 43m |
| 70 mph (112.65 km/h) | 04h 54m |
| 80 mph (129 km/h) | 04h 17m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.78 | $45.88 | $91.75 |
| Mid-grade | $4.25 | $51.62 | $103.24 |
| Premium | $4.59 | $55.73 | $111.47 |
| Diesel | $3.99 | $48.48 | $96.95 |
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.