How far is South Houston, TX from Killeen, TX?
The driving distance from South Houston, TX to Killeen, TX is about 211 miles (339.5 km), with a travel time of about 04h 09m by car.
- The straight-line flight distance is about 179.3 miles (288.6 km).
- For a round trip, plan for roughly 08h 19m 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 04h 09m.
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.
The most populous city in Brazos County, Texas.
Route Weather Snapshot
Check the forecast at both ends before you head out.
Mostly Cloudy then Chance Showers And Thunderstorms
Chance Showers And Thunderstorms
Driving Route Map
The map below follows the saved road route between South Houston and Killeen.
Turn-by-Turn Driving Directions
Step-by-step road directions between South Houston and Killeen.
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1
Start on Galveston Road
1 km · 1 min · Galveston Road
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2
Turn left onto Winkler Drive
1.1 mi · 2 min · Winkler Drive
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3
Continue on Monroe Road
148 m · 8 sec · Monroe Road
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4
Turn right onto Gulf Freeway Frontage Road
933 ft · 20 sec · Gulf Freeway Frontage Road
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5
Take the ramp slight left toward I 45 North
881 ft · 21 sec
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6
Merge slight left onto Gulf Freeway
10.4 mi · 12 min · Gulf Freeway
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7
Continue on North Freeway
8.6 mi · 11 min · North Freeway
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8
Take the exit slight right toward TX 249
818 ft · 20 sec
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9
Turn straight onto North Freeway Frontage Road
1849 ft · 39 sec · North Freeway Frontage Road
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10
Turn left onto West Mount Houston Road
2.9 mi · 5 min · West Mount Houston Road
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11
Continue on Tomball Parkway
3.8 mi · 6 min · Tomball Parkway
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12
Continue on Tomball Parkway
8.4 mi · 10 min · Tomball Parkway
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13
Continue on Tomball Tollway
7.3 mi · 8 min · Tomball Tollway
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14
Continue on MCTRA 249 Tollway
3.6 mi · 4 min · MCTRA 249 Tollway
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15
Continue on Aggie Expressway
24.8 mi · 27 min · Aggie Expressway
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16
Continue on State Highway 105
5.8 mi · 7 min · State Highway 105
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17
Turn right onto State Highway 6
815 ft · 16 sec · State Highway 6
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18
Take the ramp slight left
755 ft · 18 sec
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19
Merge slight left
49.8 mi · 53 min
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20
Keep slight right to continue on North State Highway 6
5.8 mi · 6 min · North State Highway 6
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21
Continue on South Main Street
1.3 mi · 2 min · South Main Street
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22
Turn left onto Browning Street
1.1 km · 1 min · Browning Street
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23
Continue on Farm-to-Market Road 979
15.3 mi · 19 min · Farm-to-Market Road 979
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24
At the end of the road, turn right onto Farm-to-Market Road 485
20.4 mi · 26 min · Farm-to-Market Road 485
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25
At the end of the road, turn left
13.1 mi · 16 min
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26
Turn left onto North General Bruce Drive
951 ft · 21 sec · North General Bruce Drive
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27
Take the ramp straight toward I 35 South
1069 ft · 26 sec
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28
Merge slight left onto Purple Heart Trail
7.1 mi · 8 min · Purple Heart Trail
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29
Keep slight right to continue on Central Texas Expressway
13.1 mi · 14 min · Central Texas Expressway
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30
Take the exit slight right toward FM 3470: Rosewood Drive, Stan Schlueter Loop
1346 ft · 33 sec
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31
Turn straight onto West Central Texas Expressway
2.9 mi · 3 min · West Central Texas Expressway
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32
Turn right onto South W.S. Young Drive
1.3 mi · 3 min · South W.S. Young Drive
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33
Turn left onto East Veterans Memorial Boulevard
1 mi · 2 min · East Veterans Memorial Boulevard
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34
Turn right
25 m · 8 sec
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35
Turn right
23 m · 5 sec
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36
Arrive at your destination
0 m · 1 sec
Car Route Details
A richer read on the saved driving route between South Houston and Killeen.
Highway-focused drive
Most of the mileage stays on named highways, so the important moments are ramps, exits, merges, and the final local approach.
State Highway 6
Merge slight left
49.8 mi · 00h 53m
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.
Mostly Cloudy then Chance Showers And Thunderstorms leaving South Houston and Chance Showers And Thunderstorms near Killeen.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from South Houston to Killeen?
The road trip is about 211 miles (339.5 km) and usually takes 04h 09m 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?
College Station is a useful midpoint, sitting about 105.5 miles from South Houston and 105.4 miles from Killeen.
How much longer is the road route than the straight-line distance?
The direct path is about 179.3 miles (288.6 km), while the road route adds roughly 31.7 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 8:40 AM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $28.12 one way or $56.23 round trip. Estimated CO2 is about 66.1 kg one way.
What should you check before leaving?
Before you leave, expect Mostly Cloudy then Chance Showers And Thunderstorms around South Houston and Chance Showers And Thunderstorms near Killeen.
Stop Ideas Near College Station
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 College Station.
Bryan, TX
Prairie View, TX
Taylor
Temple
Flight Path Map
This map shows the direct air route between South Houston and Killeen. Straight-line distance: 179.32 mi (288.59 km).
#1 South Houston
City in Harris County, Texas, United States
| Population | 17,446 |
| Coordinates | 29.6630100, -95.2354900 |
| Altitude | 9 |
| Country | United States |
#2 Killeen
The 11th most populous city in Texas.
| Population | 153,991 |
| Coordinates | 31.1171200, -97.7278000 |
| Altitude | 252 |
| Country | United States |
End: Killeen (-97.7278, 31.11712)
Estimated Travel Time
Distance: 340 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 07h 01m |
| 40 mph (64.37 km/h) | 05h 16m |
| 50 mph (80.47 km/h) | 04h 13m |
| 60 mph (96.56 km/h) | 03h 30m |
| 70 mph (112.65 km/h) | 03h 00m |
| 80 mph (129 km/h) | 02h 37m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.78 | $28.12 | $56.23 |
| Mid-grade | $4.25 | $31.63 | $63.27 |
| Premium | $4.59 | $34.16 | $68.31 |
| Diesel | $3.99 | $29.71 | $59.42 |
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 19, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.