This 162.9-mile drive from Seagoville, TX to Killeen, TX is comfortably doable as a single-day trip, taking approximately 2 hours and 54 minutes. You'll navigate primarily on Highway 175 West, with some initial travel on East Malloy Bridge Road. With a fuel cost estimated at $25, it’s an economical option for a short journey. The route is characterized by frequent turns, making it more of a local exploration than a high-speed transit. Considering its duration and the nature of the roads, this route is best suited for a relaxed pace, allowing you to appreciate the transition within the Great Plains region of Texas. One planned stop should be sufficient for this relatively short distance.
Trip Pace
Same-day drive is realistic
A same-day return is realistic if you keep stops short.
Break Rhythm
1 planned break
A short stop every 2 to 3 hours is enough for this drive.
Midpoint
81.5 miles from Seagoville, TX
A natural place for your longest stop of the day
, about 1h 27m into the drive
.
Main Roads
Road
Distance
Duration
South R L Thornton Freeway
80.3 mi
1h 22m
Purple Heart Trail
37.9 mi
39m
Central Texas Expressway
13.1 mi
13m
Lyndon B Johnson Freeway
10.8 mi
11m
North Jack Kultgen Expressway
6.6 mi
7m
US 175
6 mi
6m
West Central Texas Expressway
2.9 mi
3m
South W.S. Young Drive
1.3 mi
2m
Longest stretch:
South R L Thornton Freeway
— 80.3 mi, about 1h 22m
Turn-by-Turn Driving Directions
Step-by-step road directions between Seagoville, TX and Killeen, TX.
1
Start on South Kaufman Street
100 ft·7 sec·South Kaufman Street
2
Turn right onto East Malloy Bridge Road
0.6 mi·1 min·East Malloy Bridge Road
3
Turn left onto North Highway 175
0.1 mi·14 sec·North Highway 175
Use the left / straight lanes.
4
Take the ramp
0.1 mi·15 sec
Toward US 175 West
5
Merge onto US 175
6.0 mi·6 min·US 175
Use the straight / slight right lanes.
6
Take the exit
0.8 mi·1 min
Toward I 20 West: Fort WorthUse the straight / slight right lanes.
7
Merge onto I 20
11 mi·11 min·Lyndon B Johnson Freeway
Use the straight / slight right lanes.
8
Take the exit
1.0 mi·2 min
Exit 467BToward I 35E South: WacoUse the straight / slight right lanes.
9
Merge onto I 35E
80 mi·1 hr 22 min·South R L Thornton Freeway
Use the straight / slight right lanes.
10
Continue on I 35; US 77
6.6 mi·7 min·North Jack Kultgen Expressway
Use the straight / slight right lanes.
11
Continue on I 35
38 mi·39 min·Purple Heart Trail
Use the straight / slight right lanes.
12
Keep slight right at fork onto I 14; US 190
13 mi·13 min·Central Texas Expressway
Toward US 190 West: Killeen, Fort CavazosUse the straight / slight right lanes.
13
Take the exit
0.3 mi·32 sec
Exit 287Toward FM 3470: Rosewood Drive, Stan Schlueter LoopUse the slight right lane.
14
Turn straight onto West Central Texas Expressway
2.9 mi·3 min·West Central Texas Expressway
15
Turn right onto South W.S. Young Drive
1.3 mi·2 min·South W.S. Young Drive
16
Turn left onto US 190 Bus
1.0 mi·1 min·East Veterans Memorial Boulevard
17
Turn right
83 ft·8 sec
18
Turn right
74 ft·5 sec
19
Arrive at destination
Trip Plan
Given the 2-hour and 54-minute duration, starting your drive from Seagoville in the morning is ideal, allowing you to reach Killeen with plenty of daylight. With an estimated fuel cost of $25, ensure your tank is adequately filled before departing, as the 'turn-heavy local drive' profile might mean slightly less fuel efficiency than steady highway cruising. Plan for one stop to break up the drive and stretch your legs. Pay close attention to the road signs as you transition onto Highway 175 West, as this route is characterized by frequent turns, so staying alert will be key to a smooth journey.
Morning Departure
Leave by 9 AM and you'll arrive before lunch.
Evening Departure
Even a 4 PM departure gets you there before dark in summer.
You can normally do this drive in one day.
Plan roughly 1 meaningful break for fuel, food, and rest.
The halfway point lands around 81.5 miles from Seagoville, TX, or about 1h 27m into the drive.
The longest continuous stretch on this route runs about 80.3 miles.
This is a comfortable same-day trip.
Departure
Before you leave
Start with fuel, water, and navigation already sorted so the first hour feels easy.
First stop
Around 36 miles or 40m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 81.5 miles or 1h 27m in
This is the best place for your longest stop, a real meal, and a full fuel check.
Final approach
Final hour starts around 2h 21m
Traffic, exits, and arrival timing usually matter more near Killeen, TX than in the middle of the route.
Before You Leave
+
Open the route before leaving Seagoville, TX so your first major turns are already loaded.
+
Leave with enough water and a charging cable within reach, not packed away.
+
Check your fuel range against the first long segment, especially if you are starting outside city service areas.
Day 1
Settle into the route from Seagoville, TX
This is one driving day of about 162.9 miles and 2h 54m.
Your first comfortable stop window is around 36 miles from Seagoville, TX.
This route can stay practical as a one-day drive if traffic stays reasonable.
Plan about 1 real break rather than only quick fuel stops.
The longest stretch is on South R L Thornton Freeway for about 80.3 miles.
Where to Stop
Rest stops, refuel points, and overnight suggestions along this route.
Place data sourced from public business listings. Hours and availability may vary.
Heads-up: tricky spots
5 of 14
5 decision points cluster between mile 0.6 and 157.4 — GPS handles the exact turns, but know they're coming. Your lane choice matters more than the turn itself.
6
0.6 mi into trip|~1m in|North Highway 175
Turn left onto North Highway 175
Lane positioning matters here
Use the left / straight lanes.
6
6.9 mi into trip|~8m in
Take the exit toward I 20 West: Fort Worth
Exit ramp - move to the correct lane early. Lane positioning matters here
Use the straight / slight right lanes.
Toward I 20 West: Fort Worth
7
18.5 mi into trip|~21m in
Take the exit toward I 35E South: Waco
Exit ramp - move to the correct lane early. Lane positioning matters here
Use the straight / slight right lanes.
Exit 467B
Toward I 35E South: Waco
8
144.3 mi into trip|~2h 32m in|I 14; US 190 / Central Texas Expressway
Keep slight right at fork onto I 14; US 190 / Central Texas Expressway toward US 190 West: Killeen, Fort Cavazos
Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one
Use the straight / slight right lanes.
Toward US 190 West: Killeen, Fort Cavazos
8
157.4 mi into trip|~2h 46m in
Take the exit toward FM 3470: Rosewood Drive, Stan Schlueter Loop
Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one
Use the slight right lane.
Exit 287
Toward FM 3470: Rosewood Drive, Stan Schlueter...
Fuel & Cost
Regular Gas
$24.61 one way
$49.23 round trip
$3.84/gal25.4 MPG avg57 kg CO2
Fuel Type
$/gal
One Way
Round Trip
midgrade
$4.20
$26.94
$53.89
premium
$4.54
$29.08
$58.17
diesel
$5.61
$35.97
$71.93
No toll roads detected on this route.
Estimated Trip Cost (one way, 1 person)
Fuel
$25
Meals
$25–$50
Total
$50–$75
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 57 kg one way.
Prices: EIA weekly data, 2026-04-13.
Driving Electric?
About $17 in charging
· 0 stops
· 67% less CO2
Vehicle Type
kWh
Stops
DC Fast
Home Charge
Average EV
48.9
0
$17.10
$7.82
Efficient EV
40.7
0
$14.25
$6.52
EV Truck/SUV
65.2
0
$22.81
$10.43
Gas CO2
57 kg
EV CO2
19 kg (67% less)
This trip is well within single-charge range for most EVs. No charging stops needed if you start fully charged.
DC fast charging avg $0.35/kWh. Home charging avg $0.16/kWh. US grid CO2: 0.39 kg/kWh.
Travel Intel
Current conditions at both ends of the drive.
Forecast as of Apr 15, 2026
Origin
Seagoville, TX
Late night
in Seagoville on Sunday
Local time
3:08 AM
CDT
Current temp
74°F
Unavailable
Live forecast
Destination
Killeen, TX
Late night
in Killeen on Sunday
Local time
3:08 AM
CDT
Current temp
60°F
Unavailable
Live forecast
Seasonal Notes
Summer travel usually means heavier construction, hotter rest stops, and busier weekend traffic around major cities.
Winter travel shortens daylight, so a route that looks manageable on paper can feel much longer after dark.
Holiday weekends tend to make both departure and arrival windows slower than the raw route time suggests.
Time zone
Same local time
Origin and destination are on the same clock, so arrival timing is easier to judge at a glance.
Temperature spread
14 degrees cooler at arrival
A meaningful temperature swing is a good cue to rethink layers, water, and how soon you want to arrive.
Road read
2h 54m on the road
Use the two city cards together: check the sky where you start, then compare it with the local time and temperature at arrival.
Weather data from the National Weather Service. Conditions may change; check closer to your travel date.
National Parks Near This Route
Worth a detour if your schedule allows.
Waco Mammoth National Monument
National Monument
Standing as tall as 14 feet and weighing 20,000 pounds, Columbian mammoths roamed across what is present-day Texas thousands of years ago. Today, the fossil specimens represent the nation's first and...
4 mi from route
~11 min detour
Free
near mile 101.1
Park data from the National Park Service API. Alerts update every 2 hours.
More Details
What kind of drive is this?
Expect a 'turn-heavy local drive' for this 162.9-mile journey. With a 0% highway share, you won't encounter interstate speeds; instead, prepare for a more engaging experience with numerous turns and road changes. The profile suggests a route that keeps you actively navigating rather than settling into a monotonous cruise. While there isn't a specifically noted longest uninterrupted stretch, the frequent changes in direction will likely mean you'll be adjusting your speed and course often. This drive offers a distinct feel compared to long-haul highway travel, requiring more attention to your surroundings and navigation.
74% highway — fuel and pacing are the main things to plan.
19 navigation steps total — most of the decisions cluster near the start and finish.
Longest single stretch: 80.3 mi on South R L Thornton Freeway.
How Hard Is This Drive?
7/10
This is a straightforward highway drive that stays mostly on South R L Thornton Freeway and Purple Heart Trail. This route has several spots where lane changes, forks, or exits need your full attention. The trickiest moment comes around 0.6 miles in near North Highway 175.
Driving Effort7/10
Demanding - plan breaks and stay ahead of the key maneuvers
Balances navigation complexity with total wheel time.
This is a demanding drive. With 14 significant decision points across 162.9 miles, you will need to stay alert - especially through interchange areas and urban stretches. Consider splitting it into segments if you are not comfortable with fast highway navigation.
Where does it get tricky?
The main spots that need attention: at 0.6 miles (North Highway 175): Lane positioning matters here; at 6.9 miles: Exit ramp - move to the correct lane early. Lane positioning matters here; at 18.5 miles: Exit ramp - move to the correct lane early. Lane positioning matters here.
Towns Mentioned on Route Signs
Based on OSRM destination-sign hints, not a full list of every settlement the road passes.
On the drive from Seagoville, TX to Killeen, TX, road signs begin pointing toward Fort Cavazos along the way.
Killeen is a city in the Central Hill Country of Texas. It is home to U.S. Army installation Fort Cavasos, one of the largest military bases in the world.
Doable as a same-day drive at 2h 54m. Total distance: 162.9 miles.
Family Friendly
Moderate complexity with 1 natural rest stops along the way.
Solo Traveler
2h 54m drive, comfortable solo distance.
First-Time Driver
Mostly highway driving (74%). Some complex stretches to watch for.
Frequently Asked Questions
The longest stretch is about 80.3 miles on South R L Thornton Freeway. The full list of main roads is in the Roads section above.
It helps. This route has a higher-than-average number of complex decision points, which get harder in the dark. If the last hour of the trip is on surface roads or mountain grades, aim to arrive at Killeen, TX before sunset when you can. Check the Trip Plan for departure windows that land you in daylight.
Only with planning. This is a long drive for kids — consider splitting it into two days rather than pushing through. Plan at least 1 meaningful breaks. Dedicated rest areas are limited, so plan gas or food stops as your bathroom breaks.
The main spots that need attention: at 0.6 miles (North Highway 175): Lane positioning matters here; at 6.9 miles: Exit ramp - move to the correct lane early. Lane positioning matters here; at 18.5 miles: Exit ramp - move to the correct lane early. Lane positioning matters here.
Yes — Waco Mammoth National Monument. See the National Parks section for detour distances and tips on detours.
Yes. A round trip is manageable in a single day if you plan a break at Killeen, TX before heading back.
