How far is Port Arthur, TX from Killeen, TX?
The driving distance from Port Arthur, TX to Killeen, TX is about 292.9 miles (471.4 km), with a travel time of about 05h 34m by car.
- The straight-line flight distance is about 240.9 miles (387.7 km).
- For a round trip, plan for roughly 11h 08m 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 05h 34m.
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.
Unincorporated community in Grimes County, Texas
Route Weather Snapshot
Check the forecast at both ends before you head out.
Showers And Thunderstorms Likely
Chance Showers And Thunderstorms
Driving Route Map
The map below follows the saved road route between Port Arthur and Killeen.
Turn-by-Turn Driving Directions
Step-by-step road directions between Port Arthur and Killeen.
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1
Start on Augusta Avenue
60 m · 8 sec · Augusta Avenue
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2
Turn right onto Gulfway Drive
1.4 mi · 3 min · Gulfway Drive
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3
Continue on Dowling Road
1821 ft · 35 sec · Dowling Road
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4
Turn right
20.4 mi · 22 min
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5
Continue straight
3.9 mi · 4 min
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6
Turn straight
3.3 mi · 4 min
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7
Merge slight left
27.7 mi · 32 min
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8
Take the exit slight right toward TX 99 Toll: Grand Parkway
1249 ft · 31 sec
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9
Turn straight onto East Freeway Frontage Road
910 ft · 19 sec · East Freeway Frontage Road
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10
Turn right onto East Grand Parkway North
2738 ft · 1 min · East Grand Parkway North
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11
Take the ramp straight
1685 ft · 41 sec
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12
Merge slight left onto East Grand Parkway North
61.7 mi · 1 hr 6 min · East Grand Parkway North
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13
Take the exit slight right toward TX 249: Boudreaux Road, Rocky Road
2631 ft · 58 sec
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14
Continue on North Grand Parkway West
1990 ft · 40 sec · North Grand Parkway West
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15
Turn right onto Tomball Parkway
136 m · 8 sec · Tomball Parkway
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16
Take the ramp slight left toward TBT Toll North
1035 ft · 25 sec
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17
Merge slight left onto Tomball Tollway
4.9 mi · 6 min · Tomball Tollway
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18
Continue on MCTRA 249 Tollway
3.6 mi · 4 min · MCTRA 249 Tollway
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19
Continue on Aggie Expressway
24.8 mi · 27 min · Aggie Expressway
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20
Continue on State Highway 105
5.8 mi · 7 min · State Highway 105
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21
Turn right onto State Highway 6
815 ft · 16 sec · State Highway 6
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22
Take the ramp slight left
755 ft · 18 sec
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23
Merge slight left
49.8 mi · 53 min
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24
Keep slight right to continue on North State Highway 6
5.8 mi · 6 min · North State Highway 6
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25
Continue on South Main Street
1.3 mi · 2 min · South Main Street
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26
Turn left onto Browning Street
1.1 km · 1 min · Browning Street
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27
Continue on Farm-to-Market Road 979
15.3 mi · 19 min · Farm-to-Market Road 979
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28
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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29
At the end of the road, turn left
13.1 mi · 16 min
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30
Turn left onto North General Bruce Drive
951 ft · 21 sec · North General Bruce Drive
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31
Take the ramp straight toward I 35 South
1069 ft · 26 sec
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32
Merge slight left onto Purple Heart Trail
7.1 mi · 8 min · Purple Heart Trail
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33
Keep slight right to continue on Central Texas Expressway
13.1 mi · 14 min · Central Texas Expressway
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34
Take the exit slight right toward FM 3470: Rosewood Drive, Stan Schlueter Loop
1346 ft · 33 sec
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35
Turn straight onto West Central Texas Expressway
2.9 mi · 3 min · West Central Texas Expressway
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36
Turn right onto South W.S. Young Drive
1.3 mi · 3 min · South W.S. Young Drive
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37
Turn left onto East Veterans Memorial Boulevard
1 mi · 2 min · East Veterans Memorial Boulevard
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38
Turn right
25 m · 8 sec
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39
Turn right
23 m · 5 sec
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40
Arrive at your destination
0 m · 1 sec
Car Route Details
A richer read on the saved driving route between Port Arthur 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.
East Grand Parkway North
Merge slight left onto East Grand Parkway North
61.7 mi · 01h 06m
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.
Showers And Thunderstorms Likely leaving Port Arthur 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 Port Arthur to Killeen?
The road trip is about 292.9 miles (471.4 km) and usually takes 05h 34m 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?
Plantersville is a useful midpoint, sitting about 146.4 miles from Port Arthur and 146.5 miles from Killeen.
How much longer is the road route than the straight-line distance?
The direct path is about 240.9 miles (387.7 km), while the road route adds roughly 52 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 5:52 AM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $39.07 one way or $78.15 round trip. Estimated CO2 is about 91.9 kg one way.
What should you check before leaving?
Before you leave, expect Showers And Thunderstorms Likely around Port Arthur and Chance Showers And Thunderstorms near Killeen.
Stop Ideas Near Plantersville
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 Plantersville.
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Flight Path Map
This map shows the direct air route between Port Arthur and Killeen. Straight-line distance: 240.88 mi (387.66 km).
#1 Port Arthur
The most populous city in Jefferson County, Texas.
| Population | 53,921 |
| Coordinates | 29.8851900, -93.9423300 |
| Altitude | 2 |
| 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: 471 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 09h 45m |
| 40 mph (64.37 km/h) | 07h 19m |
| 50 mph (80.47 km/h) | 05h 51m |
| 60 mph (96.56 km/h) | 04h 52m |
| 70 mph (112.65 km/h) | 04h 11m |
| 80 mph (129 km/h) | 03h 39m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.78 | $39.07 | $78.15 |
| Mid-grade | $4.25 | $43.97 | $87.93 |
| Premium | $4.59 | $47.47 | $94.94 |
| Diesel | $3.99 | $41.29 | $82.58 |
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.