How far is Plano, TX from Knox City, TX?
The driving distance from Plano, TX to Knox City, TX is about 224.3 miles (361 km), with a travel time of about 04h 12m by car.
- The straight-line flight distance is about 182.4 miles (293.6 km).
- For a round trip, plan for roughly 08h 24m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 6:00 AM to 8:00 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 04h 12m.
An early departure helps you fit a real stop into the day without turning the return into a late-night drive.
This departure sits inside the recommended comfort window for the route.
Halfway Point
A useful midpoint for breaks, coffee, or meeting in the middle.
City in Texas, USA
Route Weather Snapshot
Check the forecast at both ends before you head out.
Mostly Cloudy
Partly Sunny
Driving Route Map
The map below follows the saved road route between Plano and Knox City.
Turn-by-Turn Driving Directions
Step-by-step road directions between Plano and Knox City.
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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
1484 ft · 18 sec · Central Expressway
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5
Take the exit slight right toward President George Bush Turnpike
2091 ft · 52 sec
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6
Keep slight right to continue on PGBT West: President George Bush Turnpike
1916 ft · 50 sec
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7
Merge slight left onto President George Bush Turnpike
13.7 mi · 15 min · President George Bush Turnpike
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8
Take the exit slight right toward I 35E North: Denton
1.6 mi · 2 min
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9
Keep slight left to continue on I 35E North: Denton
2073 ft · 26 sec
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10
Merge slight left onto South Stemmons Freeway
20.9 mi · 22 min · South Stemmons Freeway
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11
Continue straight
782 ft · 10 sec
-
12
Take the exit slight right toward US 380: University Drive
672 ft · 16 sec
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13
Turn straight onto North Interstate 35
2258 ft · 47 sec · North Interstate 35
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14
Turn left onto West University Drive
3.4 mi · 5 min · West University Drive
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15
Continue on US Highway 380 West
21.5 mi · 25 min · US Highway 380 West
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16
Take the exit slight right
1443 ft · 40 sec
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17
Merge slight left onto North US Highway 287
71.8 mi · 1 hr 15 min · North US Highway 287
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18
Take the exit slight right toward US 82 West, US 277 South: Lubbock, Abilene
56.5 mi · 1 hr 3 min
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19
Continue straight
18.9 mi · 21 min
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20
Take the exit slight right
1670 ft · 49 sec
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21
Turn right
4.4 mi · 7 min
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22
Continue on State Highway 222
7.1 mi · 11 min · State Highway 222
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23
Continue on East Main Street
1.3 km · 1 min · East Main Street
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24
Arrive at your destination
0 m · 1 sec · East Main Street
Car Route Details
A richer read on the saved driving route between Plano and Knox City.
Highway-focused drive
Most of the mileage stays on named highways, so the important moments are ramps, exits, merges, and the final local approach.
North US Highway 287
Merge slight left onto North US Highway 287
71.8 mi · 01h 15m
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.
Mostly Cloudy leaving Plano and Partly Sunny near Knox City.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Plano to Knox City?
The road trip is about 224.3 miles (361 km) and usually takes 04h 12m 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?
Henrietta is a useful midpoint, sitting about 112.1 miles from Plano and 112.2 miles from Knox City.
How much longer is the road route than the straight-line distance?
The direct path is about 182.4 miles (293.6 km), while the road route adds roughly 41.9 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 8:00 AM CDT. If you want a more comfortable same-day return, try to leave by 8:36 AM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $29.89 one way or $59.78 round trip. Estimated CO2 is about 70.3 kg one way.
What should you check before leaving?
Before you leave, expect Mostly Cloudy around Plano and Partly Sunny near Knox City.
Stop Ideas Near Henrietta
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 Henrietta.
Gainesville
Ardmore station
Flight Path Map
This map shows the direct air route between Plano and Knox City. Straight-line distance: 182.43 mi (293.59 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 Knox City
City in Knox County, Texas, United States
| Population | 1,120 |
| Coordinates | 33.4181500, -99.8189800 |
| Altitude | 466 |
| Country | United States |
End: Knox City (-99.81898, 33.41815)
Estimated Travel Time
Distance: 361 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 07h 28m |
| 40 mph (64.37 km/h) | 05h 36m |
| 50 mph (80.47 km/h) | 04h 29m |
| 60 mph (96.56 km/h) | 03h 44m |
| 70 mph (112.65 km/h) | 03h 12m |
| 80 mph (129 km/h) | 02h 47m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.78 | $29.89 | $59.78 |
| Mid-grade | $4.25 | $33.63 | $67.27 |
| Premium | $4.59 | $36.31 | $72.63 |
| Diesel | $3.99 | $31.58 | $63.17 |
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 23, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.