How far is Decatur, TX from McKinney, TX?
The driving distance from Decatur, TX to McKinney, TX is about 71.3 miles (114.7 km), with a travel time of about 01h 10m by car.
- The straight-line flight distance is about 56.2 miles (90.4 km).
- For a round trip, plan for roughly 02h 20m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 8:00 AM to 10:00 AM CDT.
Reverse, save, or send this route
This route works well as a day trip with time at the destination. Copy the route link, send it to another device, or print a clean version before you head out.
This route works well as a day trip with time at the destination.
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 01h 10m.
A morning start gives you useful time at the destination and keeps the return out of the late evening.
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.
The seventh most populous city in Texas.
Route Weather Snapshot
Check the forecast at both ends before you head out.
Showers And Thunderstorms
Rain Showers
Driving Route Map
The map below follows the saved road route between Decatur and McKinney.
Turn-by-Turn Driving Directions
Step-by-step road directions between Decatur and McKinney.
-
1
Start on North Market Street
54 m · 10 sec · North Market Street
-
2
Turn right onto East Walnut Street
897 ft · 23 sec · East Walnut Street
-
3
Turn left onto North Cates Street
117 m · 8 sec · North Cates Street
-
4
Turn slight right onto East Business 380
2047 ft · 41 sec · East Business 380
-
5
Turn straight onto North FM 51
1178 ft · 25 sec · North FM 51
-
6
Take the ramp right
1220 ft · 34 sec
-
7
Merge slight left onto East US Highway 380
19.9 mi · 23 min · East US Highway 380
-
8
Continue on West University Drive
11.4 mi · 18 min · West University Drive
-
9
Continue on US Highway 380 East
8.2 mi · 12 min · US Highway 380 East
-
10
Continue on West University Drive
7.6 mi · 10 min · West University Drive
-
11
Continue on West University Drive
7.6 mi · 11 min · West University Drive
-
12
Take the exit slight right toward US 75 South, TX 121 South
69 m · 6 sec
-
13
Turn slight right onto North Central Expressway
81 m · 5 sec · North Central Expressway
-
14
Continue on North Central Expressway
1.2 mi · 2 min · North Central Expressway
-
15
Turn left onto West Louisiana Street
1.4 mi · 3 min · West Louisiana Street
-
16
Turn left onto North Tennessee Street
36 m · 3 sec · North Tennessee Street
-
17
Arrive at your destination
0 m · 1 sec · North Tennessee Street
Car Route Details
A richer read on the saved driving route between Decatur and McKinney.
Straightforward drive
The saved road route has a manageable number of maneuvers and should be easy to follow with normal attention to signs.
East US Highway 380
Merge slight left onto East US Highway 380
19.9 mi · 00h 23m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
A comfortable day-trip route
This route works well as a day trip. You can leave in the morning, spend meaningful time at the destination, and still return the same day.
Showers And Thunderstorms leaving Decatur and Rain Showers near McKinney.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Decatur to McKinney?
The road trip is about 71.3 miles (114.7 km) and usually takes 01h 10m in normal driving conditions.
Is this a same-day trip or an overnight route?
This route works well as a day trip. You can leave in the morning, spend meaningful time at the destination, and still return the same day.
What is the halfway point on this route?
Denton is a useful midpoint, sitting about 29.2 miles from Decatur and 42.1 miles from McKinney.
How much longer is the road route than the straight-line distance?
The direct path is about 56.2 miles (90.4 km), while the road route adds roughly 15.1 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 8:00 AM to 10:00 AM CDT. If you want a more comfortable same-day return, try to leave by 4:10 PM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $9.49 one way or $18.97 round trip. Estimated CO2 is about 22.3 kg one way.
What should you check before leaving?
Before you leave, expect Showers And Thunderstorms around Decatur and Rain Showers near McKinney.
Stop Ideas Near Denton
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 Denton.
Gainesville
Fort Worth Central Station
Dallas, TX
Union Station
Flight Path Map
This map shows the direct air route between Decatur and McKinney. Straight-line distance: 56.18 mi (90.41 km).
#1 Decatur
City in Texas, USA
| Population | 7,572 |
| Coordinates | 33.2342800, -97.5861400 |
| Altitude | 336 |
| Country | United States |
#2 McKinney
The third most populous city in Collin County, Texas.
| Population | 208,272 |
| Coordinates | 33.1976200, -96.6152700 |
| Altitude | 192 |
| Country | United States |
End: North Tennessee Street (-96.61506, 33.19762)
Estimated Travel Time
Distance: 115 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 02h 22m |
| 40 mph (64.37 km/h) | 01h 46m |
| 50 mph (80.47 km/h) | 01h 25m |
| 60 mph (96.56 km/h) | 01h 11m |
| 70 mph (112.65 km/h) | 01h 01m |
| 80 mph (129 km/h) | 00h 53m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.78 | $9.49 | $18.97 |
| Mid-grade | $4.25 | $10.67 | $21.35 |
| Premium | $4.59 | $11.52 | $23.05 |
| Diesel | $3.99 | $10.02 | $20.04 |
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 · May 01, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.