How far is Harlingen, TX from Killeen, TX?
The driving distance from Harlingen, TX to Killeen, TX is about 375.3 miles (604 km), with a travel time of about 07h 14m by car.
- The straight-line flight distance is about 340.4 miles (547.8 km).
- For a round trip, plan for roughly 14h 29m 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 07h 14m.
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.
Route Weather Snapshot
Check the forecast at both ends before you head out.
Partly Sunny
Chance Showers And Thunderstorms
Driving Route Map
The map below follows the saved road route between Harlingen and Killeen.
Turn-by-Turn Driving Directions
Step-by-step road directions between Harlingen and Killeen.
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1
Start on South Commerce Street
4 m · 4 sec · South Commerce Street
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2
Turn left onto West Harrison Avenue
1.3 mi · 2 min · West Harrison Avenue
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3
Turn right onto North Expressway 77
130 m · 12 sec · North Expressway 77
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4
Take the ramp slight left toward I 69E North, US 77 North
884 ft · 22 sec
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5
Merge slight left onto U.S. Highway 77
88 mi · 1 hr 38 min · U.S. Highway 77
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6
Keep slight left
1157 ft · 14 sec
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7
Merge slight right
1.2 mi · 1 min
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8
Continue on U.S. Highway 77
11.6 mi · 13 min · U.S. Highway 77
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9
Take the exit slight right
1410 ft · 34 sec
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10
Turn straight onto US Highway 77 Frontage Road
148 m · 18 sec · US Highway 77 Frontage Road
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11
Turn right onto County Road 10
1 mi · 4 min · County Road 10
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12
Turn left onto County Road 79
4 mi · 16 min · County Road 79
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13
Turn left onto County Road 18
848 ft · 44 sec · County Road 18
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14
Turn sharp right
1.1 mi · 3 min
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15
Take the ramp straight
2351 ft · 57 sec
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16
Merge slight left onto Driscoll Bypass
2.3 mi · 2 min · Driscoll Bypass
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17
Continue on U.S. Highway 77
13.2 mi · 14 min · U.S. Highway 77
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18
Merge slight left
1.4 mi · 1 min
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19
Keep slight left
1.3 mi · 1 min
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20
Continue straight
18.3 mi · 18 min
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21
Take the exit slight right toward TX 359: Mathis, Skidmore
1275 ft · 33 sec
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22
Turn right onto State Highway 359
12.4 mi · 17 min · State Highway 359
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23
At the end of the road, turn left onto South 8th Street
1.3 km · 56 sec · South 8th Street
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24
Continue on US Highway 181 South
40.2 mi · 46 min · US Highway 181 South
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25
Continue on South Sunset Strip Drive
1.2 mi · 1 min · South Sunset Strip Drive
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26
Turn right onto West Main Street
1.2 km · 1 min · West Main Street
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27
Keep slight left to continue on East Main Street
71 m · 4 sec · East Main Street
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28
Continue on Helena Road
8.4 mi · 11 min · Helena Road
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29
Turn straight onto State Highway 80
23.6 mi · 26 min · State Highway 80
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30
Continue on South Nixon Avenue
1 mi · 2 min · South Nixon Avenue
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31
Continue on State Highway 80 North
30.8 mi · 35 min · State Highway 80 North
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32
Continue on US 183
10.1 mi · 12 min · US 183
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33
Continue on South Colorado Street
4.9 mi · 9 min · South Colorado Street
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34
Continue on United States Highway 183
1282 ft · 17 sec · United States Highway 183
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35
Keep slight left to continue on TX 130 Toll North: Austin, Waco
2447 ft · 35 sec
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36
Merge slight left onto Pickle Parkway
58.5 mi · 55 min · Pickle Parkway
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37
Keep slight right to continue on TX 195 North: Florence, Killeen
874 ft · 21 sec
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38
Continue on North Interstate 35
1424 ft · 26 sec · North Interstate 35
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39
Turn left onto State Highway 195
34 mi · 38 min · State Highway 195
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40
Turn slight right
80 m · 10 sec
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41
Turn slight right onto West Veterans Memorial Boulevard
1.4 km · 2 min · West Veterans Memorial Boulevard
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42
Turn left
25 m · 8 sec
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43
Turn right
23 m · 5 sec
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44
Arrive at your destination
0 m · 1 sec
Car Route Details
A richer read on the saved driving route between Harlingen and Killeen.
Long-distance drive
This route is long enough that fuel, rest stops, weather, and timing matter more than any single maneuver.
U.S. Highway 77
Merge slight left onto U.S. Highway 77
88 mi · 01h 38m
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.
Partly Sunny leaving Harlingen and Chance Showers And Thunderstorms near Killeen.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Harlingen to Killeen?
The road trip is about 375.3 miles (604 km) and usually takes 07h 14m 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?
Kenedy is a useful midpoint, sitting about 188.2 miles from Harlingen and 187.2 miles from Killeen.
How much longer is the road route than the straight-line distance?
The direct path is about 340.4 miles (547.8 km), while the road route adds roughly 34.9 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 $50.03 one way or $100.07 round trip. Estimated CO2 is about 117.7 kg one way.
What should you check before leaving?
Before you leave, expect Partly Sunny around Harlingen and Chance Showers And Thunderstorms near Killeen.
Stop Ideas Near Kenedy
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 Kenedy.
San Antonio Station
San Marcos Station
Flight Path Map
This map shows the direct air route between Harlingen and Killeen. Straight-line distance: 340.39 mi (547.81 km).
#1 Harlingen
The most populous city in Cameron County, Texas.
| Population | 65,176 |
| Coordinates | 26.1906300, -97.6961000 |
| Altitude | 12 |
| Country | United States |
#2 Killeen
The 11th most populous city in Texas.
| Population | 153,991 |
| Coordinates | 31.1171200, -97.7278000 |
| Altitude | 252 |
| Country | United States |
End: Killeen (-97.7278, 31.11712)
Estimated Travel Time
Distance: 604 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 12h 30m |
| 40 mph (64.37 km/h) | 09h 23m |
| 50 mph (80.47 km/h) | 07h 30m |
| 60 mph (96.56 km/h) | 06h 15m |
| 70 mph (112.65 km/h) | 05h 21m |
| 80 mph (129 km/h) | 04h 40m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.78 | $50.03 | $100.07 |
| Mid-grade | $4.25 | $56.30 | $112.59 |
| Premium | $4.59 | $60.78 | $121.57 |
| Diesel | $3.99 | $52.87 | $105.73 |
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 12, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.