How far is Sullivan City, TX from Houston, TX?
The driving distance from Sullivan City, TX to Houston, TX is about 383.8 miles (617.7 km), with a travel time of about 06h 17m by car.
- The straight-line flight distance is about 310 miles (498.9 km).
- For a round trip, plan for roughly 12h 34m 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 17m.
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 Sunny then Slight Chance Showers And Thunderstorms
Slight Chance Rain Showers then Chance Showers And Thunderstorms
Driving Route Map
The map below follows the saved road route between Sullivan City and Houston.
Turn-by-Turn Driving Directions
Step-by-step road directions between Sullivan City and Houston.
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1
Start on East Expressway 83
33 m · 9 sec · East Expressway 83
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2
Continue on East Expressway 83
2.4 mi · 3 min · East Expressway 83
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3
Keep slight left to continue on La Joya Bypass
23.7 mi · 27 min · La Joya Bypass
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4
Take the exit slight right toward I 69C North, US 281: Edinburg
1.6 km · 2 min
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5
Continue straight
21.8 mi · 23 min
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6
Continue straight
57.1 mi · 1 hr
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7
Keep slight right
25.2 mi · 28 min
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8
Take the exit slight right
2237 ft · 1 min
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9
Continue straight
2.2 mi · 3 min
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10
Turn right onto Cecilia Street
2623 ft · 57 sec · Cecilia Street
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11
Turn left onto Old Kingsville Road
105 m · 7 sec · Old Kingsville Road
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12
Turn slight right onto South Cameron Street
1.3 mi · 2 min · South Cameron Street
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13
Turn right onto East Front Street
138 m · 6 sec · East Front Street
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14
Continue on East Main Street
26.2 mi · 30 min · East Main Street
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15
Take the exit slight right
1 km · 1 min
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16
Turn left onto North US Highway 77
1.6 km · 2 min · North US Highway 77
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17
Take the ramp slight left toward County Road 44
1247 ft · 31 sec
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18
Merge slight left onto U.S. Highway 77
4.7 mi · 5 min · U.S. Highway 77
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19
Merge slight left
1.4 mi · 1 min
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20
Keep slight left
1.3 km · 50 sec
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21
Continue straight
141 m · 5 sec
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22
Take the exit slight right toward Sinton, Victoria
37.6 mi · 44 min
-
23
Turn slight right onto United States Highway 77
33 mi · 37 min · United States Highway 77
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24
Keep slight left to continue on Spur 91
1.5 mi · 2 min · Spur 91
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25
Merge slight left onto US Highway 59 South
88.6 mi · 1 hr 38 min · US Highway 59 South
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26
Take the exit slight right
1551 ft · 38 sec
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27
Continue on 59 Northbound Frontage Road
1.6 mi · 2 min · 59 Northbound Frontage Road
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28
Continue straight
2146 ft · 59 sec
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29
Continue on US 59 Northbound Frontage Road
2 mi · 5 min · US 59 Northbound Frontage Road
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30
Continue on Southwest Freeway Frontage Road
1.3 mi · 3 min · Southwest Freeway Frontage Road
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31
Take the ramp slight left toward I 69 North, US 59 North
1304 ft · 32 sec
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32
Merge slight left onto Southwest Freeway
32.6 mi · 38 min · Southwest Freeway
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33
Keep slight left to continue on Richmond Avenue, Downtown via Louisiana Street
1.4 km · 1 min
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34
Take the exit slight right toward Downtown, Louisiana Street
47 m · 4 sec
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35
Continue on Louisiana Street
1.9 mi · 5 min · Louisiana Street
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36
Arrive at your destination
0 m · 1 sec · Louisiana Street
Car Route Details
A richer read on the saved driving route between Sullivan City and Houston.
Long-distance drive
This route is long enough that fuel, rest stops, weather, and timing matter more than any single maneuver.
US Highway 59 South
Merge slight left onto US Highway 59 South
88.6 mi · 01h 38m
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 then Slight Chance Showers And Thunderstorms leaving Sullivan City and Slight Chance Rain Showers then Chance Showers And Thunderstorms near Houston.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Sullivan City to Houston?
The road trip is about 383.8 miles (617.7 km) and usually takes 06h 17m 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?
Sinton is a useful midpoint, sitting about 186.6 miles from Sullivan City and 197.2 miles from Houston.
How much longer is the road route than the straight-line distance?
The direct path is about 310 miles (498.9 km), while the road route adds roughly 73.8 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 $51.17 one way or $102.34 round trip. Estimated CO2 is about 120.3 kg one way.
What should you check before leaving?
Before you leave, expect Mostly Sunny then Slight Chance Showers And Thunderstorms around Sullivan City and Slight Chance Rain Showers then Chance Showers And Thunderstorms near Houston.
Flight Path Map
This map shows the direct air route between Sullivan City and Houston. Straight-line distance: 309.98 mi (498.86 km).
#1 Sullivan City
City in Hidalgo County, Texas, United States
| Population | 4,170 |
| Coordinates | 26.2775700, -98.5636300 |
| Altitude | 61 |
| Country | United States |
#2 Houston
The fourth most populous city in the United States and the center of the Houston metropolitan area.
| Population | 2,316,120 |
| Coordinates | 29.7632800, -95.3632700 |
| Altitude | 12 |
| Country | United States |
End: Louisiana Street (-95.363596, 29.76347)
Estimated Travel Time
Distance: 618 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 12h 47m |
| 40 mph (64.37 km/h) | 09h 35m |
| 50 mph (80.47 km/h) | 07h 40m |
| 60 mph (96.56 km/h) | 06h 23m |
| 70 mph (112.65 km/h) | 05h 29m |
| 80 mph (129 km/h) | 04h 47m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.78 | $51.17 | $102.34 |
| Mid-grade | $4.25 | $57.57 | $115.14 |
| Premium | $4.59 | $62.16 | $124.32 |
| Diesel | $3.99 | $54.07 | $108.13 |
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.