How far is Killeen, TX from Port Neches, TX?
The driving distance from Killeen, TX to Port Neches, TX is about 280.2 miles (450.9 km), with a travel time of about 05h 30m by car.
- The straight-line flight distance is about 237.4 miles (382 km).
- For a round trip, plan for roughly 11h 00m 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 30m.
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.
Chance Showers And Thunderstorms
Chance Showers And Thunderstorms then Showers And Thunderstorms Likely
Driving Route Map
The map below follows the saved road route between Killeen and Port Neches.
Turn-by-Turn Driving Directions
Step-by-step road directions between Killeen and Port Neches.
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1
Start on the route
23 m · 11 sec
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2
Turn left
25 m · 11 sec
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3
Turn left onto East Veterans Memorial Boulevard
5.1 mi · 9 min · East Veterans Memorial Boulevard
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4
Turn slight right onto Edwards Drive
2510 ft · 55 sec · Edwards Drive
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5
Take the ramp straight toward I 14 East, US 190 East
3164 ft · 1 min
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6
Merge slight left onto Central Texas Expressway
10.7 mi · 11 min · Central Texas Expressway
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7
Merge slight left onto Purple Heart Trail
6.8 mi · 8 min · Purple Heart Trail
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8
Take the exit slight right toward TX 53, FM 2305: Central Avenue, Adams Avenue
1209 ft · 30 sec
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9
Turn straight onto South General Bruce Drive
895 ft · 18 sec · South General Bruce Drive
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10
Turn slight right
68 m · 8 sec
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11
Turn slight right onto West Central Avenue
1.6 km · 2 min · West Central Avenue
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12
Turn left onto North 3rd Street
66 m · 4 sec · North 3rd Street
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13
Turn right onto West Adams Avenue
12 mi · 15 min · West Adams Avenue
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14
Turn right
20.4 mi · 26 min
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15
Turn left onto Farm-to-Market Road 979
15.3 mi · 19 min · Farm-to-Market Road 979
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16
Continue on Browning Street
1.1 km · 1 min · Browning Street
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17
Turn right onto South Main Street
1.3 mi · 2 min · South Main Street
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18
Continue on North State Highway 6
6.2 mi · 6 min · North State Highway 6
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19
Continue on North Market Street
2.1 mi · 2 min · North Market Street
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20
Continue on South State Highway 6
13.7 mi · 15 min · South State Highway 6
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21
Continue on North Earl Rudder Freeway
30.1 mi · 32 min · North Earl Rudder Freeway
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22
Continue on State Highway 6
3.4 mi · 4 min · State Highway 6
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23
Take the exit slight right toward East TX 105, Spur 515: Conroe
1176 ft · 29 sec
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24
Turn straight onto State Highway 6
854 ft · 24 sec · State Highway 6
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25
Turn left onto State Highway 105
5.9 mi · 7 min · State Highway 105
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26
Turn straight onto Aggie Expressway
24.7 mi · 27 min · Aggie Expressway
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27
Continue on MCTRA 249 Tollway
3.6 mi · 4 min · MCTRA 249 Tollway
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28
Continue on Tomball Tollway
4.7 mi · 5 min · Tomball Tollway
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29
Take the exit slight right toward TX 99 Toll: Grand Parkway, Boudreaux Road
1147 ft · 28 sec
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30
Turn straight onto Tomball Parkway
1597 ft · 34 sec · Tomball Parkway
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31
Turn left onto North Grand Parkway West
1965 ft · 43 sec · North Grand Parkway West
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32
Continue on Toll 99
2531 ft · 1 min
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33
Merge slight left onto Grand Parkway
43.9 mi · 47 min · Grand Parkway
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34
Take the exit slight right toward FM 1960: Dayton, Humble
2361 ft · 1 min
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35
Turn left
5.1 mi · 7 min
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36
Turn right onto North Cleveland Street
1028 ft · 25 sec · North Cleveland Street
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37
Turn left onto United States Highway 90 West
10 mi · 12 min · United States Highway 90 West
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38
Continue on US Highway 90
38.1 mi · 45 min · US Highway 90
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39
Turn right onto South Martin Luther King Junior Parkway
4.2 mi · 6 min · South Martin Luther King Junior Parkway
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40
Keep slight left
4.4 mi · 6 min
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41
Turn slight left onto FM 366: Port Neches
753 ft · 28 sec
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42
Continue on Magnolia Avenue
1.5 mi · 2 min · Magnolia Avenue
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43
Turn left onto Port Neches Avenue
1.1 mi · 3 min · Port Neches Avenue
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44
Turn right onto Nall Street
26 m · 2 sec · Nall Street
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45
Arrive at your destination
0 m · 1 sec · Nall Street
Car Route Details
A richer read on the saved driving route between Killeen and Port Neches.
Highway-focused drive
Most of the mileage stays on named highways, so the important moments are ramps, exits, merges, and the final local approach.
Grand Parkway
Merge slight left onto Grand Parkway
43.9 mi · 00h 47m
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.
Chance Showers And Thunderstorms leaving Killeen and Chance Showers And Thunderstorms then Showers And Thunderstorms Likely near Port Neches.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Killeen to Port Neches?
The road trip is about 280.2 miles (450.9 km) and usually takes 05h 30m 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 140 miles from Killeen and 140.1 miles from Port Neches.
How much longer is the road route than the straight-line distance?
The direct path is about 237.4 miles (382 km), while the road route adds roughly 42.8 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 8:00 AM CDT. If you want a more comfortable same-day return, try to leave by 6:00 AM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $37.37 one way or $74.75 round trip. Estimated CO2 is about 87.9 kg one way.
What should you check before leaving?
Before you leave, expect Chance Showers And Thunderstorms around Killeen and Chance Showers And Thunderstorms then Showers And Thunderstorms Likely near Port Neches.
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.
Prairie View, TX
Bryan, TX
Houston
Houston, TX
Flight Path Map
This map shows the direct air route between Killeen and Port Neches. Straight-line distance: 237.36 mi (382 km).
#1 Killeen
The 11th most populous city in Texas.
| Population | 153,991 |
| Coordinates | 31.1171200, -97.7278000 |
| Altitude | 252 |
| Country | United States |
#2 Port Neches
City in Jefferson County, Texas, United States
| Population | 12,596 |
| Coordinates | 29.9913200, -93.9585100 |
| Altitude | 5 |
| Country | United States |
End: Port Neches (-93.95851, 29.99132)
Estimated Travel Time
Distance: 451 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 09h 20m |
| 40 mph (64.37 km/h) | 07h 00m |
| 50 mph (80.47 km/h) | 05h 36m |
| 60 mph (96.56 km/h) | 04h 40m |
| 70 mph (112.65 km/h) | 04h 00m |
| 80 mph (129 km/h) | 03h 29m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.78 | $37.37 | $74.75 |
| Mid-grade | $4.25 | $42.05 | $84.10 |
| Premium | $4.59 | $45.40 | $90.81 |
| Diesel | $3.99 | $39.49 | $78.98 |
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.