This 177.2-mile drive from Lewisville, TX to Killeen, TX is easily manageable as a single-day trip, taking approximately 3 hours and 11 minutes to complete. The route primarily utilizes major roads like South R L Thornton Freeway and Central Texas Expressway, with 77% of the journey on highways. With an estimated fuel cost of $27, this straightforward drive through the Great Plains region of Texas is a practical option for most travelers. You'll experience a consistent pace for most of the journey, making it a simple point-to-point adventure.
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
88.6 miles from Lewisville, TX
A natural place for your longest stop of the day
, about 1h 36m into the drive
.
Who Is This Route For?
Weekend Trip
Doable as a same-day drive at 3h 11m. Total distance: 177.2 miles.
Family Friendly
Moderate complexity with 1 natural rest stops along the way.
Solo Traveler
3h 11m drive, comfortable solo distance.
First-Time Driver
Mostly highway driving (77%). Some complex stretches to watch for.
Drive Character
Expect a highway-focused experience for the majority of this 177.2-mile trip, with 77% of the drive on main roads. The longest uninterrupted stretch you'll encounter is 89.9 miles on South R L Thornton Freeway, offering a consistent pace. While largely a highway drive, the route incorporates segments of Purple Heart Trail and Central Texas Expressway, providing a varied but still efficient journey. This profile suggests a smooth ride with minimal technical driving, ideal for covering distance efficiently.
Most of the miles stay on highways, which makes pacing and fuel planning easier than turn-by-turn city driving.
There are about 19 navigation steps in the underlying route data, so the final approach matters more than the middle miles.
South R L Thornton Freeway is the longest continuous segment at about 89.9 miles.
How Hard Is This Drive?
This is a straightforward highway drive that stays mostly on South R L Thornton Freeway and Purple Heart Trail. You will hit about 12 points where you need to pay attention to lane position or signs. The trickiest moment comes around 1 miles in near TX 121 Bus / East State Highway 121.
Driving Effort6/10
Moderate - straightforward overall, but long enough or busy enough to require pacing
Balances navigation complexity with total wheel time.
This drive requires moderate attention. Across 177.2 miles you will encounter 12 spots where lane choice or exit timing matters. Not difficult for experienced highway drivers, but worth previewing the tricky sections before you go.
Where does it get tricky?
The main spots that need attention: at 1 miles (TX 121 Bus / East State Highway 121): Lane positioning matters here; at 1.2 miles (South Stemmons Freeway): Lane positioning matters here; at 14.2 miles (I 35E / North Stemmons Freeway): Highway fork - watch signs carefully. Lane positioning matters here.
Critical Maneuvers
5 of 12 key points
These are the spots where you need to pay the most attention. Preview them before you drive.
6
1 mi into trip|~2m in|TX 121 Bus / East State Highway 121
Turn right onto TX 121 Bus / East State Highway 121
Lane positioning matters here
Use the straight / right lanes.
6
1.2 mi into trip|~2m in|South Stemmons Freeway
Turn left onto South Stemmons Freeway
Lane positioning matters here
Use the left lane.
6
14.2 mi into trip|~17m in|I 35E / North Stemmons Freeway
Keep slight left at fork onto I 35E / North Stemmons Freeway
Highway fork - watch signs carefully. Lane positioning matters here
Use the straight / slight right lanes.
8
158.7 mi into trip|~2h 49m 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
171.7 mi into trip|~3h 2m 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...
Towns Mentioned on Route Signs
Based on OSRM destination-sign hints, not a full list of every settlement the road passes.
Between Lewisville, TX and Killeen, TX, road signs point toward Dallas Zoo and Fort Cavazos.
Dallas Zoo
24.8 mi in|~30m|via I 35E
Fort Cavazos
158.7 mi in|~2h 49m|via I 14; US 190
Main Roads
Road
Distance
Duration
South R L Thornton Freeway
89.9 mi
1h 32m
Purple Heart Trail
37.9 mi
39m
Central Texas Expressway
13.1 mi
13m
South Stemmons Freeway
12.9 mi
14m
North Stemmons Freeway
10 mi
12m
North Jack Kultgen Expressway
6.6 mi
7m
West Central Texas Expressway
2.9 mi
3m
South W.S. Young Drive
1.3 mi
2m
Longest stretch:
South R L Thornton Freeway
— 89.9 mi, about 1h 32m
Turn-by-Turn Driving Directions
Step-by-step road directions between Lewisville, TX and Killeen, TX.
1
Start on South Mill Street
0.9 mi·2 min·South Mill Street
2
Continue on South Mill Street
200 ft·7 sec·South Mill Street
3
Turn right onto TX 121 Bus
0.2 mi·24 sec·East State Highway 121
Use the straight / right lanes.
4
Turn left onto South Stemmons Freeway
0.3 mi·29 sec·South Stemmons Freeway
Use the left lane.
5
Take the ramp
0.1 mi·18 sec
Toward I 35E South, US 77 South
6
Merge onto I 35E
13 mi·14 min·South Stemmons Freeway
Use the straight / slight right lanes.
7
Keep slight left at fork onto I 35E
10 mi·12 min·North Stemmons Freeway
Use the straight / slight right lanes.
8
Continue on I 35E
0.5 mi·44 sec·South R L Thornton Freeway
9
Continue on I 35E
89 mi·1 hr 31 min·South R L Thornton Freeway
Exit 426Toward Dallas ZooUse 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
For this 3-hour, 11-minute drive, departing early in the morning is recommended to avoid potential traffic congestion, especially on the initial stretches. With only one stop suggested in the data, you have flexibility in pacing your journey. Given the estimated fuel cost of $27, plan your fueling stops accordingly, though the 177.2 miles shouldn't overly tax your tank. Keep an eye on your navigation as you transition between South R L Thornton Freeway, Purple Heart Trail, and Central Texas Expressway to ensure smooth progress towards Killeen.
Morning Departure
An early start around 7-8 AM gets you there with plenty of daylight left.
Evening Departure
A late afternoon start means arriving after dark. Morning is better.
You can normally do this drive in one day.
Plan roughly 1 meaningful break for fuel, food, and rest.
The halfway point lands around 88.6 miles from Lewisville, TX, or about 1h 36m into the drive.
The longest continuous stretch on this route runs about 89.9 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 39 miles or 45m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 88.6 miles or 1h 36m 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 35m
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 Lewisville, 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 Lewisville, TX
This is one driving day of about 177.2 miles and 3h 11m.
Your first comfortable stop window is around 39 miles from Lewisville, 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 89.9 miles.
Where to Stop
Rest stops, refuel points, and overnight suggestions along this route.
Halfway Point
Midpoint
About 88.6 mi from Lewisville, TX
· 1h 36m into the drive
Place data sourced from public business listings. Hours and availability may vary.
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...
5 mi from route
~12 min detour
Free
near mile 116.1
Park data from the National Park Service API. Alerts update every 2 hours.
Fuel & Cost
Regular Gas
$26.78 one way
$53.55 round trip
$3.84/gal25.4 MPG avg62 kg CO2
Fuel Type
$/gal
One Way
Round Trip
midgrade
$4.20
$29.31
$58.62
premium
$4.54
$31.64
$63.28
diesel
$5.61
$39.12
$78.25
No toll roads detected on this route.
Estimated Trip Cost (one way, 1 person)
Fuel
$27
Meals
$25–$50
Total
$52–$77
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 62 kg one way.
Prices: EIA weekly data, 2026-04-13.
Driving Electric?
About $19 in charging
· 0 stops
· 66% less CO2
Vehicle Type
kWh
Stops
DC Fast
Home Charge
Average EV
53.2
0
$18.61
$8.51
Efficient EV
44.3
0
$15.50
$7.09
EV Truck/SUV
70.9
0
$24.81
$11.34
Gas CO2
62 kg
EV CO2
21 kg (66% 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
Lewisville, TX
Afternoon
in Lewisville on Friday
Local time
12:38 PM
CDT
Current temp
60°F
Unavailable
Live forecast
Destination
Killeen, TX
Afternoon
in Killeen on Friday
Local time
12:38 PM
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
Very similar conditions
Both ends of the route are sitting at about the same temperature right now.
Road read
3h 11m 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.
Frequently Asked Questions
The drive from Lewisville, TX to Killeen, TX covers 177.2 miles and takes about 3h 11m without stops. Add 15-30 minutes for a fuel or rest stop on longer drives.
The main roads are South R L Thornton Freeway, Purple Heart Trail, Central Texas Expressway. Most of the drive stays on highways, so watch for ramps and exits.
This is a comfortable same-day trip.
The midpoint is about 88.6 miles from Lewisville, TX. Look for rest areas, gas stations, or food options near the halfway mark.
At current regular gas prices, expect to spend about $26.78 one way. This estimate uses 25.4 MPG — your actual cost will vary with your vehicle's fuel efficiency and current gas prices.
An early start around 7-8 AM gets you there with plenty of daylight left. A late afternoon start means arriving after dark. Morning is better.
Plan about 1 meaningful break for fuel, food, or rest. A short stop every 2 to 3 hours is enough for this drive.
This drive requires moderate attention. Across 177.2 miles you will encounter 12 spots where lane choice or exit timing matters. Not difficult for experienced highway drivers, but worth previewing the tricky sections before you go.
The main spots that need attention: at 1 miles (TX 121 Bus / East State Highway 121): Lane positioning matters here; at 1.2 miles (South Stemmons Freeway): Lane positioning matters here; at 14.2 miles (I 35E / North Stemmons Freeway): Highway fork - watch signs carefully. Lane positioning matters here.
Between Lewisville, TX and Killeen, TX, road signs point toward Dallas Zoo and Fort Cavazos.
Yes. Nearby national parks include Waco Mammoth National Monument.
How this page is built
Compiled by the Trip.ovh planning team at COD Solutions Oy from open government datasets — OSRM over OpenStreetMap for geometry, EIA for fuel prices, and NPS for national parks. See our methodology for refresh cadence and limitations.
