How far is Plano, TX from Harper, TX?
The driving distance from Plano, TX to Harper, TX is about 302 miles (486.1 km), with a travel time of about 05h 44m by car.
- The straight-line flight distance is about 240.2 miles (386.6 km).
- For a round trip, plan for roughly 11h 29m 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 44m.
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.
Route Weather Snapshot
Check the forecast at both ends before you head out.
Mostly Cloudy
Driving Route Map
The map below follows the saved road route between Plano and Harper.
Turn-by-Turn Driving Directions
Step-by-step road directions between Plano and Harper.
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1
Start on East 15th Street
1 km · 1 min · East 15th Street
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2
Turn left onto Central Expressway
919 ft · 18 sec · Central Expressway
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3
Take the ramp slight left toward US 75 South
798 ft · 19 sec
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4
Merge slight left onto Central Expressway
16.6 mi · 18 min · Central Expressway
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5
Take the exit slight left toward Downtown, Good-Latimer Expressway
153 m · 12 sec
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6
Continue on North Central Expressway
1.2 km · 1 min · North Central Expressway
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7
Turn right onto Elm Street
93 m · 11 sec · Elm Street
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8
Turn left onto North Pearl Expressway
1086 ft · 29 sec · North Pearl Expressway
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9
Turn right onto Young Street
572 ft · 20 sec · Young Street
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10
Turn left onto South Harwood Street
96 m · 8 sec · South Harwood Street
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11
Turn right onto Canton Street
2105 ft · 48 sec · Canton Street
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12
Take the ramp slight left toward I 30 West
1773 ft · 38 sec
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13
Keep slight left to continue on I 35E South, I 35E North: Waco, Denton
607 ft · 15 sec
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14
Keep slight left to continue on I 35E North, I 35E South: Denton, Waco
67 m · 5 sec
-
15
Keep slight left to continue on I 35E South: Waco
1915 ft · 30 sec
-
16
Continue on South R L Thornton Freeway
2866 ft · 44 sec · South R L Thornton Freeway
-
17
Continue on South R L Thornton Freeway
89.3 mi · 1 hr 32 min · South R L Thornton Freeway
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18
Continue on North Jack Kultgen Expressway
6.6 mi · 8 min · North Jack Kultgen Expressway
-
19
Continue on Purple Heart Trail
37.9 mi · 39 min · Purple Heart Trail
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20
Keep slight left
8.9 mi · 9 min
-
21
Take the exit slight right toward FM 2268, FM 2843: Holland, Florence
1453 ft · 35 sec
-
22
Turn straight onto South Robertson Road
663 ft · 12 sec · South Robertson Road
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23
Continue on South I-35 Frontage Road
3142 ft · 54 sec · South I-35 Frontage Road
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24
Turn slight right
14.6 mi · 18 min
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25
At the end of the road, turn right onto FM 487
2.4 mi · 3 min · FM 487
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26
Continue on East Main Street
714 ft · 15 sec · East Main Street
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27
Take the ramp right toward TX 195 North
1712 ft · 42 sec
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28
Merge slight left
1562 ft · 18 sec
-
29
Take the exit slight right toward TX 138: Lampasas
1658 ft · 47 sec
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30
Turn left onto State Highway 138
6.9 mi · 8 min · State Highway 138
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31
At the end of the road, turn right onto North US Highway 183
941 ft · 18 sec · North US Highway 183
-
32
Turn left onto East Ranch Road 243
2916 ft · 42 sec · East Ranch Road 243
-
33
Continue on East RM 243
1 mi · 1 min · East RM 243
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34
Keep slight left to continue on East RM 243
11.1 mi · 15 min · East RM 243
-
35
Turn right onto West State Highway 29
9 mi · 11 min · West State Highway 29
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36
Continue on East Polk Street
1.6 mi · 3 min · East Polk Street
-
37
Turn left onto South Water Street
2 mi · 3 min · South Water Street
-
38
Continue on South US Highway 281
33.5 mi · 40 min · South US Highway 281
-
39
Take the exit straight toward Fredericksburg
582 ft · 16 sec
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40
Merge slight left onto East Main Street
1.6 km · 2 min · East Main Street
-
41
Continue on West US Highway 290
27.2 mi · 31 min · West US Highway 290
-
42
Continue on East Main Street
3.5 mi · 7 min · East Main Street
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43
Continue on West US Highway 290
22.1 mi · 25 min · West US Highway 290
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44
Arrive at your destination
0 m · 1 sec · West US Highway 290
Car Route Details
A richer read on the saved driving route between Plano and Harper.
Long-distance drive
This route is long enough that fuel, rest stops, weather, and timing matter more than any single maneuver.
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 Plano 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 Plano to Harper?
The road trip is about 302 miles (486.1 km) and usually takes 05h 44m 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?
Belton is a useful midpoint, sitting about 151.1 miles from Plano and 151.1 miles from Harper.
How much longer is the road route than the straight-line distance?
The direct path is about 240.2 miles (386.6 km), while the road route adds roughly 61.8 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 5:30 AM CST.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $38.17 one way or $76.35 round trip. Estimated CO2 is about 94.7 kg one way.
What should you check before leaving?
Before you leave, expect Partly Cloudy around Plano and Mostly Cloudy near Harper.
Stop Ideas Near Belton
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 Belton.
Temple
Killeen, Texas
Fort Hood, Texas
McGregor
Flight Path Map
This map shows the direct air route between Plano and Harper. Straight-line distance: 240.24 mi (386.63 km).
#1 Plano
The second most populous city in Texas and the center of the Dallas-Fort Worth metropolitan area.
| Population | 291,296 |
| Coordinates | 33.0198400, -96.6988900 |
| Altitude | 203 |
| 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: 486 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 10h 03m |
| 40 mph (64.37 km/h) | 07h 33m |
| 50 mph (80.47 km/h) | 06h 02m |
| 60 mph (96.56 km/h) | 05h 02m |
| 70 mph (112.65 km/h) | 04h 18m |
| 80 mph (129 km/h) | 03h 46m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.58 | $38.17 | $76.35 |
| Mid-grade | $4.09 | $43.64 | $87.28 |
| Premium | $4.47 | $47.67 | $95.34 |
| Diesel | $5.68 | $60.57 | $121.14 |
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