How far is Killeen, TX from Seabrook, TX?
The driving distance from Killeen, TX to Seabrook, TX is about 231.8 miles (373 km), with a travel time of about 04h 35m by car.
- The straight-line flight distance is about 193.6 miles (311.5 km).
- For a round trip, plan for roughly 09h 10m 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 35m.
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.
Town in Brazos County, Texas, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Chance Showers And Thunderstorms
Showers And Thunderstorms
Driving Route Map
The map below follows the saved road route between Killeen and Seabrook.
Turn-by-Turn Driving Directions
Step-by-step road directions between Killeen and Seabrook.
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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
7 mi · 8 min · Tomball Tollway
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29
Continue on Tomball Parkway
7.8 mi · 9 min · Tomball Parkway
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30
Take the exit slight right toward SHT East: Sam Houston Tollway East
1 mi · 2 min
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31
Merge slight left onto North Sam Houston Tollway West
1.6 mi · 2 min · North Sam Houston Tollway West
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32
Keep slight right to continue on North Sam Houston Tollway West
2.6 mi · 3 min · North Sam Houston Tollway West
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33
Continue on North Sam Houston Parkway West
9.3 mi · 11 min · North Sam Houston Parkway West
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34
Continue on North Sam Houston Tollway East
13.2 mi · 15 min · North Sam Houston Tollway East
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35
Continue on East Sam Houston Parkway North
4.3 mi · 5 min · East Sam Houston Parkway North
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36
Continue on East Sam Houston Tollway North
3.1 mi · 4 min · East Sam Houston Tollway North
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37
Take the exit slight right toward TX 225: Deer Park, Houston
682 ft · 17 sec
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38
Continue on TX 225: Deer Park, Houston
981 ft · 24 sec
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39
Continue on East Sam Houston Parkway South
885 ft · 30 sec · East Sam Houston Parkway South
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40
Turn left onto Pasadena Freeway Frontage Road
1045 ft · 23 sec · Pasadena Freeway Frontage Road
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41
Take the ramp straight toward TX 225 East
851 ft · 21 sec
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42
Merge slight left onto Pasadena Freeway
1108 ft · 15 sec · Pasadena Freeway
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43
Continue on La Porte Freeway
6.8 mi · 8 min · La Porte Freeway
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44
Keep slight right to continue on TX 146 South: La Porte
2908 ft · 1 min
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45
Merge slight left
7.8 mi · 10 min
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46
Take the exit slight right
2698 ft · 1 min
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47
Turn straight onto Bayport Boulevard
32 m · 5 sec · Bayport Boulevard
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48
Turn left onto East NASA Parkway
85 m · 14 sec · East NASA Parkway
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49
Turn left onto Anders Avenue
37 m · 10 sec · Anders Avenue
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50
Turn left
33 m · 8 sec
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51
Arrive at your destination
0 m · 1 sec
Car Route Details
A richer read on the saved driving route between Killeen and Seabrook.
Interchange-aware route
The drive includes several ramps, exits, or merges, so checking the next few maneuvers before busy interchanges is useful.
North Earl Rudder Freeway
Continue on North Earl Rudder Freeway
30.1 mi · 00h 32m
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 Showers And Thunderstorms near Seabrook.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Killeen to Seabrook?
The road trip is about 231.8 miles (373 km) and usually takes 04h 35m 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?
Millican is a useful midpoint, sitting about 115.9 miles from Killeen and 115.9 miles from Seabrook.
How much longer is the road route than the straight-line distance?
The direct path is about 193.6 miles (311.5 km), while the road route adds roughly 38.2 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 7:50 AM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $30.91 one way or $61.82 round trip. Estimated CO2 is about 72.7 kg one way.
What should you check before leaving?
Before you leave, expect Chance Showers And Thunderstorms around Killeen and Showers And Thunderstorms near Seabrook.
Stop Ideas Near Millican
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 Millican.
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Houston
Houston, TX
Flight Path Map
This map shows the direct air route between Killeen and Seabrook. Straight-line distance: 193.59 mi (311.55 km).
#1 Killeen
The 11th most populous city in Texas.
| Population | 153,991 |
| Coordinates | 31.1171200, -97.7278000 |
| Altitude | 252 |
| Country | United States |
#2 Seabrook
City in Texas, United States
| Population | 13,879 |
| Coordinates | 29.5641200, -95.0254800 |
| Altitude | 3 |
| Country | United States |
End: Seabrook (-95.02548, 29.56412)
Estimated Travel Time
Distance: 373 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 07h 43m |
| 40 mph (64.37 km/h) | 05h 47m |
| 50 mph (80.47 km/h) | 04h 38m |
| 60 mph (96.56 km/h) | 03h 51m |
| 70 mph (112.65 km/h) | 03h 18m |
| 80 mph (129 km/h) | 02h 53m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.78 | $30.91 | $61.82 |
| Mid-grade | $4.25 | $34.78 | $69.56 |
| Premium | $4.59 | $37.55 | $75.11 |
| Diesel | $3.99 | $32.66 | $65.33 |
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.