How far is Dallas, TX from Harper, TX?
The driving distance from Dallas, TX to Harper, TX is about 283.7 miles (456.6 km), with a travel time of about 05h 23m by car.
- The straight-line flight distance is about 223.7 miles (360 km).
- For a round trip, plan for roughly 10h 46m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 6:00 AM to 8:00 AM CST.
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 05h 23m.
An early departure helps you fit a real stop into the day without turning the return into a late-night drive.
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.
Village in the United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Partly Cloudy
Mostly Cloudy
Driving Route Map
The map below follows the saved road route between Dallas and Harper.
Turn-by-Turn Driving Directions
Step-by-step road directions between Dallas and Harper.
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1
Start on North Lamar Street
1233 ft · 34 sec · North Lamar Street
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2
Turn right onto Elm Street
1125 ft · 31 sec · Elm Street
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3
Continue on Elm Street
709 ft · 14 sec · Elm Street
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4
Take the ramp straight toward I 30, I 35E
100 m · 8 sec
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5
Keep slight left to continue on I 30 West, I 35E South
835 ft · 20 sec
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6
Keep slight right to continue on I 35E South
101 m · 8 sec
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7
Merge slight right onto South Stemmons Freeway
1.4 km · 1 min · South Stemmons Freeway
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8
Continue on South R L Thornton Freeway
2866 ft · 44 sec · South R L Thornton Freeway
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9
Continue on South R L Thornton Freeway
89.3 mi · 1 hr 32 min · South R L Thornton Freeway
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10
Continue on North Jack Kultgen Expressway
6.6 mi · 8 min · North Jack Kultgen Expressway
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11
Continue on Purple Heart Trail
37.9 mi · 39 min · Purple Heart Trail
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12
Keep slight left
8.9 mi · 9 min
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13
Take the exit slight right toward FM 2268, FM 2843: Holland, Florence
1453 ft · 35 sec
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14
Turn straight onto South Robertson Road
663 ft · 12 sec · South Robertson Road
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15
Continue on South I-35 Frontage Road
3142 ft · 54 sec · South I-35 Frontage Road
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16
Turn slight right
14.6 mi · 18 min
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17
At the end of the road, turn right onto FM 487
2.4 mi · 3 min · FM 487
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18
Continue on East Main Street
714 ft · 15 sec · East Main Street
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19
Take the ramp right toward TX 195 North
1712 ft · 42 sec
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20
Merge slight left
1562 ft · 18 sec
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21
Take the exit slight right toward TX 138: Lampasas
1658 ft · 47 sec
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22
Turn left onto State Highway 138
6.9 mi · 8 min · State Highway 138
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23
At the end of the road, turn right onto North US Highway 183
941 ft · 18 sec · North US Highway 183
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24
Turn left onto East Ranch Road 243
2916 ft · 42 sec · East Ranch Road 243
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25
Continue on East RM 243
1 mi · 1 min · East RM 243
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26
Keep slight left to continue on East RM 243
11.1 mi · 15 min · East RM 243
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27
Turn right onto West State Highway 29
9 mi · 11 min · West State Highway 29
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28
Continue on East Polk Street
1.6 mi · 3 min · East Polk Street
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29
Turn left onto South Water Street
2 mi · 3 min · South Water Street
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30
Continue on South US Highway 281
33.5 mi · 40 min · South US Highway 281
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31
Take the exit straight toward Fredericksburg
582 ft · 16 sec
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32
Merge slight left onto East Main Street
1.6 km · 2 min · East Main Street
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33
Continue on West US Highway 290
27.2 mi · 31 min · West US Highway 290
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34
Continue on East Main Street
3.5 mi · 7 min · East Main Street
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35
Continue on West US Highway 290
22.1 mi · 25 min · West US Highway 290
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36
Arrive at your destination
0 m · 1 sec · West US Highway 290
Car Route Details
A richer read on the saved driving route between Dallas and Harper.
Highway-focused drive
Most of the mileage stays on named highways, so the important moments are ramps, exits, merges, and the final local approach.
South R L Thornton Freeway
Continue on South R L Thornton Freeway
89.3 mi · 01h 32m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
A longer out-and-back drive
This is still possible in one day, but it becomes a long driving day. Leaving early and planning your stop window matters more here.
Partly Cloudy leaving Dallas and Mostly Cloudy near Harper.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Dallas to Harper?
The road trip is about 283.7 miles (456.6 km) and usually takes 05h 23m in normal driving conditions.
Is this a same-day trip or an overnight route?
This is still possible in one day, but it becomes a long driving day. Leaving early and planning your stop window matters more here.
What is the halfway point on this route?
Salado is a useful midpoint, sitting about 141.9 miles from Dallas and 141.9 miles from Harper.
How much longer is the road route than the straight-line distance?
The direct path is about 223.7 miles (360 km), while the road route adds roughly 60 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 8:00 AM CST. If you want a more comfortable same-day return, try to leave by 6:14 AM CST.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $35.85 one way or $71.69 round trip. Estimated CO2 is about 89 kg one way.
What should you check before leaving?
Before you leave, expect Partly Cloudy around Dallas and Mostly Cloudy near Harper.
Stop Ideas Near Salado
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 Salado.
Temple
Killeen, Texas
Fort Hood, Texas
Taylor
Flight Path Map
This map shows the direct air route between Dallas and Harper. Straight-line distance: 223.67 mi (359.97 km).
#1 Dallas
The ninth most populous city in the United States and the center of the Dallas-Fort Worth metropolitan area.
| Population | 1,343,266 |
| Coordinates | 32.7830600, -96.8066700 |
| Altitude | 128 |
| Country | United States |
#2 Harper
Harper is a place in Texas, United States.
| Population | 0 |
| Coordinates | 30.2999200, -99.2442100 |
| Altitude | 626 |
| Country | United States |
End: Harper (-99.24421, 30.29992)
Estimated Travel Time
Distance: 457 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 09h 27m |
| 40 mph (64.37 km/h) | 07h 05m |
| 50 mph (80.47 km/h) | 05h 40m |
| 60 mph (96.56 km/h) | 04h 43m |
| 70 mph (112.65 km/h) | 04h 03m |
| 80 mph (129 km/h) | 03h 32m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.58 | $35.85 | $71.69 |
| Mid-grade | $4.09 | $40.98 | $81.96 |
| Premium | $4.47 | $44.76 | $89.53 |
| Diesel | $5.68 | $56.88 | $113.75 |
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 · Nov 06, 2026