How far is Killeen, TX from Union, KY?
The driving distance from Killeen, TX to Union, KY is about 1070 miles (1722 km), with a travel time of about 19h 03m by car.
- The straight-line flight distance is about 913.5 miles (1470.2 km).
- For a round trip, plan for roughly 38h 07m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 6:00 AM to 7:30 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 19h 03m.
Starting early still helps, but most travelers will want a longer stop or an overnight stay on a route this long.
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.
City in Monroe County, Arkansas, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Mostly Sunny then Chance Showers And Thunderstorms
Driving Route Map
The map below follows the saved road route between Killeen and Union.
Turn-by-Turn Driving Directions
Step-by-step road directions between Killeen and Union.
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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
37.8 mi · 39 min · Purple Heart Trail
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8
Continue on South Jack Kultgen Expressway
6.6 mi · 8 min · South Jack Kultgen Expressway
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9
Continue on Purple Heart Trail
33 mi · 33 min · Purple Heart Trail
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10
Keep slight right to continue on I 35E: Dallas
56.2 mi · 58 min
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11
Take the exit slight right toward I 30 East: Texarkana, Riverfront Boulevard, Griffin Street
2094 ft · 42 sec
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12
Keep slight left to continue on I 35E North, I 30 West: Denton, Fort Worth, Texarkana
129 m · 6 sec
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13
Keep slight right to continue on I 30 East: Texarkana, Convention Center
2206 ft · 33 sec
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14
Keep slight left to continue on I 30 East: Texarkana
117 m · 6 sec
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15
Continue on East R L Thornton Freeway
7.5 mi · 9 min · East R L Thornton Freeway
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16
Keep slight left to continue on East R L Thornton Freeway
174.5 mi · 2 hr 59 min · East R L Thornton Freeway
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17
Continue on Purple Heart Trail
133.5 mi · 2 hr 16 min · Purple Heart Trail
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18
Keep slight right to continue on East Belt Freeway
10 mi · 12 min · East Belt Freeway
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19
Take the exit right toward I 40: Memphis, Fort Smith
1161 ft · 28 sec
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20
Keep slight right to continue on I 40 East: Memphis
2525 ft · 1 min
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21
Merge slight left
119.5 mi · 2 hr 1 min
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22
Keep slight left to continue on Blues Highway
1.3 km · 58 sec · Blues Highway
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23
Keep slight left
18 mi · 22 min
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24
Keep slight left to continue on I 40 East: Nashville, Knoxville
197.9 mi · 3 hr 34 min
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25
Keep slight left to continue on I 65 North: Louisville
1986 ft · 30 sec
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26
Continue on Downtown Loop
1.7 mi · 2 min · Downtown Loop
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27
Keep slight left to continue on I 24 West, I 65 North: Clarksville, Louisville
8.9 mi · 11 min
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28
Continue straight
1170 ft · 14 sec
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29
Keep slight left
155.9 mi · 2 hr 48 min
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30
Take the exit slight right toward I 264: Watterson Expressway, Airport
1.1 km · 59 sec
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31
Keep slight right to continue on I 264 East: Watterson Expressway
1.3 km · 1 min
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32
Merge slight left onto Henry Watterson Expressway
10 mi · 14 min · Henry Watterson Expressway
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33
Keep slight right to continue on I 71 North: Cincinnati
1877 ft · 32 sec
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34
Merge slight left
66.4 mi · 1 hr 12 min
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35
Take the exit slight right toward KY 14: Verona
1880 ft · 52 sec
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36
Turn left onto Verona-Mudlick Road
2.3 mi · 4 min · Verona-Mudlick Road
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37
At the end of the road, turn right
7.5 mi · 11 min
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38
Turn left onto Old Union Road
1906 ft · 52 sec · Old Union Road
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39
Enter the roundabout and take exit 2 toward Old Union Road
31 m · 2 sec · Old Union Road
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40
Exit the roundabout onto Old Union Road
113 m · 13 sec · Old Union Road
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41
Turn right onto Union School Road
45 m · 6 sec · Union School Road
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42
Arrive at your destination
0 m · 1 sec · Union School Road
Car Route Details
A richer read on the saved driving route between Killeen and Union.
Long-distance drive
This route is long enough that fuel, rest stops, weather, and timing matter more than any single maneuver.
I 40 East
Keep slight left to continue on I 40 East: Nashville, Knoxville
198 mi · 03h 34m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
Better with a longer stop
This route is long enough that most travelers will be better off planning an overnight stay or a more deliberate stop window.
Mostly Sunny leaving Killeen and Mostly Sunny then Chance Showers And Thunderstorms near Union.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Killeen to Union?
The road trip is about 1070 miles (1722 km) and usually takes 19h 03m in normal driving conditions.
Is this a same-day trip or an overnight route?
This route is long enough that most travelers will be better off planning an overnight stay or a more deliberate stop window.
What is the halfway point on this route?
Brinkley is a useful midpoint, sitting about 534.8 miles from Killeen and 535.2 miles from Union.
How much longer is the road route than the straight-line distance?
The direct path is about 913.5 miles (1470.2 km), while the road route adds roughly 156.5 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 7:30 AM CDT. Starting early still helps, but most travelers will want a longer stop or an overnight stay on a route this long.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $149.23 one way or $298.46 round trip. Estimated CO2 is about 335.6 kg one way.
Do you cross a time zone on this route?
Yes. There is about a 1 hour time difference between Killeen and Union, so arrival and return times should be read in local time.
What should you check before leaving?
Before you leave, expect Mostly Sunny around Killeen and Mostly Sunny then Chance Showers And Thunderstorms near Union.
Stop Ideas Near Brinkley
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 Brinkley.
Little Rock Union Station
Central Station
Flight Path Map
This map shows the direct air route between Killeen and Union. Straight-line distance: 913.56 mi (1470.24 km).
#1 Killeen
The 11th most populous city in Texas.
| Population | 153,991 |
| Coordinates | 31.1171200, -97.7278000 |
| Altitude | 252 |
| Country | United States |
#2 Union
Township in Boone County, Iowa
| Population | 6,116 |
| Coordinates | 38.9459000, -84.6805000 |
| Altitude | 255 |
| Country | United States |
End: Union (-84.6805, 38.9459)
Estimated Travel Time
Distance: 1722 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 35h 39m |
| 40 mph (64.37 km/h) | 26h 45m |
| 50 mph (80.47 km/h) | 21h 23m |
| 60 mph (96.56 km/h) | 17h 50m |
| 70 mph (112.65 km/h) | 15h 17m |
| 80 mph (129 km/h) | 13h 20m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.95 | $149.23 | $298.46 |
| Mid-grade | $4.46 | $168.26 | $336.52 |
| Premium | $4.83 | $182.42 | $364.84 |
| Diesel | $5.98 | $225.80 | $451.61 |
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 · Sep 20, 2026