Killeen to Lewisville is 175.5 miles and takes about 3h 11m via Purple Heart Trail and I 35E, with a fuel budget near $27 and enough daylight to finish in a day. This drive keeps you within the Great Plains region of Texas for its entirety. The profile is described as a mixed drive, suggesting you'll encounter varied road types. With just one recommended stop and a relatively short duration, this route is well-suited for a single-day journey. Plan for this trip to be straightforward, primarily utilizing major highways.
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
87.7 miles from Killeen, TX
A natural place for your longest stop of the day
, about 1h 35m into the drive
.
Who Is This Route For?
Weekend Trip
Doable as a same-day drive at 3h 11m. Total distance: 175.5 miles.
Family Friendly
Moderate complexity with 1 natural rest stops along the way.
Solo Traveler
3h 11m drive, comfortable solo distance.
Scenic Drive
Mixed drive route profile with national parks nearby.
Drive Character
This trip features a mixed drive profile, with 55% of the journey on highways. You'll experience a significant stretch of 70.8 miles on the Purple Heart Trail, which likely offers a different driving feel than the subsequent interstate portions. The latter part of the drive will incorporate I 35E and North Stemmons Freeway, typical of urban approaches. Expect a blend of open road and increasing traffic as you near your destination. The drive is mostly on established routes, not a winding country road adventure.
Expect a mix of faster highway mileage and slower local approaches near the beginning or end.
There are about 16 navigation steps in the underlying route data, so the final approach matters more than the middle miles.
Purple Heart Trail is the longest continuous segment at about 70.8 miles.
How Hard Is This Drive?
This route mixes highway mileage with some local-road sections near the start or finish. This route has several spots where lane changes, forks, or exits need your full attention. The trickiest moment comes early in the drive.
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 10 significant decision points across 175.5 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: near the start: Navigation decision point; at 6.2 miles (I 14; US 190 / Central Texas Expressway): Merge point - match speed before joining. Lane positioning matters here; at 94.4 miles (I 35E): Highway fork - watch signs carefully. Lane positioning matters here.
Critical Maneuvers
5 of 10 key points
These are the spots where you need to pay the most attention. Preview them before you drive.
5
0 mi into trip|~0m in
Turn left
Navigation decision point
5
6.2 mi into trip|~11m in|I 14; US 190 / Central Texas Expressway
Merge onto I 14; US 190 / Central Texas Expressway
Merge point - match speed before joining. Lane positioning matters here
Use the straight / slight right lanes.
7
94.4 mi into trip|~1h 41m in|I 35E
Keep slight right at fork onto I 35E toward I 35E: Dallas
Highway fork - watch signs carefully. Lane positioning matters here
Use the slight right lane.
Toward I 35E: Dallas
7
156.9 mi into trip|~2h 48m in|I 35E / North Stemmons Freeway
Keep slight right at fork onto I 35E / North Stemmons Freeway toward I 35E North: Denton
Highway fork - watch signs carefully. Lane positioning matters here
Use the straight / slight left lanes.
Toward I 35E North: Denton
7
173.8 mi into trip|~3h 7m in
Take the exit toward TX 121 Business
Exit ramp - move to the correct lane early. Lane positioning matters here
Use the slight right lane.
Exit 450
Toward TX 121 Business
Step-by-step road directions between Killeen, TX and Lewisville, TX.
1
Start on this road
74 ft·10 sec·this road
2
Turn left
83 ft·11 sec
3
Turn left onto US 190 Bus
5.1 mi·8 min·East Veterans Memorial Boulevard
4
Turn slight right onto Edwards Drive
0.5 mi·55 sec·Edwards Drive
5
Take the ramp
0.6 mi·1 min
Toward I 14 East, US 190 East
6
Merge onto I 14; US 190
11 mi·11 min·Central Texas Expressway
Use the straight / slight right lanes.
7
Merge onto I 35; US 190
38 mi·38 min·Purple Heart Trail
Use the straight / slight right lanes.
8
Continue on I 35
6.6 mi·7 min·South Jack Kultgen Expressway
Use the straight / slight right lanes.
9
Continue on I 35; US 77
33 mi·33 min·Purple Heart Trail
Use the straight / slight right lanes.
10
Keep slight right at fork onto I 35E
63 mi·1 hr 6 min·I 35E
Toward I 35E: DallasUse the slight right lane.
11
Keep slight right at fork onto I 35E
17 mi·19 min·North Stemmons Freeway
Toward I 35E North: DentonUse the straight / slight left lanes.
12
Take the exit
0.3 mi·38 sec
Exit 450Toward TX 121 BusinessUse the slight right lane.
13
Turn straight onto South Stemmons Freeway
0.2 mi·16 sec·South Stemmons Freeway
Use the straight / right lanes.
14
Turn slight right onto Texas Street
0.3 mi·31 sec·Texas Street
Use the straight / right lanes.
15
Continue on South Mill Street
1.0 mi·2 min·South Mill Street
Use the straight lane.
16
Arrive at destination
South Mill Street
Trip Plan
Given the 3h 11m estimated drive time, departing Killeen in the morning allows ample time to reach Lewisville comfortably within daylight hours. With only one recommended stop and a total of 175.5 miles, you have flexibility in pacing. The fuel cost is estimated at $27, so ensure your tank is sufficiently full before leaving Killeen to minimize any unexpected stops. Pay attention to traffic conditions, particularly as you merge onto I 35E and approach the Dallas-Fort Worth metroplex, as congestion can impact travel time.
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 87.7 miles from Killeen, TX, or about 1h 35m into the drive.
The longest continuous stretch on this route runs about 70.8 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 44m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 87.7 miles or 1h 35m 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 34m
Traffic, exits, and arrival timing usually matter more near Lewisville, TX than in the middle of the route.
Before You Leave
+
Open the route before leaving Killeen, 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 Killeen, TX
This is one driving day of about 175.5 miles and 3h 11m.
Your first comfortable stop window is around 39 miles from Killeen, 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 Purple Heart Trail for about 70.8 miles.
Where to Stop
Rest stops, refuel points, and overnight suggestions along this route.
Halfway Point
Midpoint
About 87.7 mi from Killeen, TX
· 1h 35m into the drive
The midpoint is around 87.7 miles from Killeen, TX, which is a good place for a longer meal and fuel stop.
Arriving in Lewisville, TX
The final approach into Lewisville, TX usually feels slower than the middle of the drive, so avoid planning your tightest schedule at the very end.
Try to arrive with enough fuel left to skip an immediate station stop unless you already know the area around Lewisville, TX.
These stop ideas are pacing suggestions — the exact town or exit can change with traffic, hotel plans, and fuel range.
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
~10 min detour
Free
near mile 60.5
Park data from the National Park Service API. Alerts update every 2 hours.
Fuel & Cost
Regular Gas
$26.52 one way
$53.04 round trip
$3.84/gal25.4 MPG avg61 kg CO2
Fuel Type
$/gal
One Way
Round Trip
midgrade
$4.20
$29.03
$58.05
premium
$4.54
$31.33
$62.67
diesel
$5.61
$38.75
$77.50
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: 61.4 kg one way.
Prices: EIA weekly data, 2026-04-13.
Driving Electric?
About $18 in charging
· 0 stops
· 66% less CO2
Vehicle Type
kWh
Stops
DC Fast
Home Charge
Average EV
52.7
0
$18.43
$8.42
Efficient EV
43.9
0
$15.36
$7.02
EV Truck/SUV
70.2
0
$24.57
$11.23
Gas CO2
61 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
Killeen, TX
Morning
in Killeen on Friday
Local time
10:07 AM
CDT
Current temp
60°F
Unavailable
Live forecast
Destination
Lewisville, TX
Morning
in Lewisville on Friday
Local time
10:07 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
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 Killeen, TX to Lewisville, TX covers 175.5 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 Purple Heart Trail, I 35E, North Stemmons Freeway. Expect a mix of highway and local road driving.
This is a comfortable same-day trip.
The midpoint is about 87.7 miles from Killeen, TX. Look for rest areas, gas stations, or food options near the halfway mark.
At current regular gas prices, expect to spend about $26.52 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 is a demanding drive. With 10 significant decision points across 175.5 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.
The main spots that need attention: near the start: Navigation decision point; at 6.2 miles (I 14; US 190 / Central Texas Expressway): Merge point - match speed before joining. Lane positioning matters here; at 94.4 miles (I 35E): Highway fork - watch signs carefully. Lane positioning matters here.
The route from Killeen, TX to Lewisville, TX does not surface many named destination signs beyond the main corridor.
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.
