How far is San Antonio, TX from McKinney, TX?
The driving distance from San Antonio, TX to McKinney, TX is about 325.1 miles (523.2 km), with a travel time of about 04h 46m by car.
- The straight-line flight distance is about 283.3 miles (455.9 km).
- For a round trip, plan for roughly 09h 32m 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 46m.
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 Bell County, Texas
Route Weather Snapshot
Check the forecast at both ends before you head out.
Slight Chance Rain Showers
Mostly Sunny
Driving Route Map
The map below follows the saved road route between San Antonio and McKinney.
Turn-by-Turn Driving Directions
Step-by-step road directions between San Antonio and McKinney.
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1
Start on Dolorosa Street
44 m · 5 sec · Dolorosa Street
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2
Continue on West Market Street
1893 ft · 42 sec · West Market Street
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3
Continue on East Market Street
2143 ft · 46 sec · East Market Street
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4
Turn left
111 m · 13 sec
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5
Turn straight onto East Commerce Street
66 m · 13 sec · East Commerce Street
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6
Take the ramp sharp left toward US 281 North, I 37 North
1159 ft · 28 sec
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7
Merge slight left onto William J Bordelon Freeway
1.3 km · 56 sec · William J Bordelon Freeway
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8
Take the exit slight right toward I 35 North: Austin
2907 ft · 1 min
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9
Merge slight left onto North Pan Am Expressway
8.2 mi · 10 min · North Pan Am Expressway
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10
Keep slight left to continue on North Pan Am Expressway
7.4 mi · 8 min · North Pan Am Expressway
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11
Continue on Purple Heart Trail
11.9 mi · 13 min · Purple Heart Trail
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12
Continue on Interstate Highway 35
1.9 mi · 2 min · Interstate Highway 35
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13
Continue on Purple Heart Trail
47.8 mi · 52 min · Purple Heart Trail
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14
Keep slight right to continue on Purple Heart Trail
95.6 mi · 1 hr 40 min · Purple Heart Trail
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15
Continue on South Jack Kultgen Expressway
6.6 mi · 8 min · South Jack Kultgen Expressway
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16
Continue on Purple Heart Trail
33 mi · 33 min · Purple Heart Trail
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17
Keep slight right to continue on I 35E: Dallas
56.2 mi · 58 min
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18
Take the exit slight right toward I 30 East: Texarkana, Riverfront Boulevard, Griffin Street
2094 ft · 42 sec
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19
Keep slight left to continue on I 35E North, I 30 West: Denton, Fort Worth, Texarkana
129 m · 6 sec
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20
Keep slight right to continue on I 30 East: Texarkana, Convention Center
2206 ft · 33 sec
-
21
Keep slight left to continue on I 30 East: Texarkana
117 m · 6 sec
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22
Continue on East R L Thornton Freeway
1.2 km · 1 min · East R L Thornton Freeway
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23
Take the exit slight right toward I 45, US 75: Houston, McKinney
2421 ft · 46 sec
-
24
Keep slight left to continue on US 75 North: McKinney
2512 ft · 1 min
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25
Keep slight right to continue on US 75 North: McKinney, Bryan Street East
1697 ft · 27 sec
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26
Merge slight left onto Julius Schepps Freeway
1.2 km · 49 sec · Julius Schepps Freeway
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27
Continue on North Central Expressway
26.6 mi · 29 min · North Central Expressway
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28
Take the exit slight right toward SRT South, TX 5: Sam Rayburn Tollway
1776 ft · 22 sec
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29
Keep slight right
1.2 km · 1 min
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30
Merge slight left
1.5 km · 1 min
-
31
Continue on South McDonald Street
1.6 km · 2 min · South McDonald Street
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32
Turn slight left
86 m · 10 sec
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33
Continue on South Tennessee Street
1.1 mi · 3 min · South Tennessee Street
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34
Arrive at your destination
0 m · 1 sec · North Tennessee Street
Car Route Details
A richer read on the saved driving route between San Antonio and McKinney.
Long-distance drive
This route is long enough that fuel, rest stops, weather, and timing matter more than any single maneuver.
Purple Heart Trail
Keep slight right to continue on Purple Heart Trail
95.6 mi · 01h 40m
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.
Slight Chance Rain Showers leaving San Antonio and Mostly Sunny near McKinney.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from San Antonio to McKinney?
The road trip is about 325.1 miles (523.2 km) and usually takes 04h 46m 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?
Troy is a useful midpoint, sitting about 153 miles from San Antonio and 172.1 miles from McKinney.
How much longer is the road route than the straight-line distance?
The direct path is about 283.3 miles (455.9 km), while the road route adds roughly 41.8 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 CDT. If you want a more comfortable same-day return, try to leave by 7:28 AM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $43.35 one way or $86.69 round trip. Estimated CO2 is about 101.9 kg one way.
What should you check before leaving?
Before you leave, expect Slight Chance Rain Showers around San Antonio and Mostly Sunny near McKinney.
Stop Ideas Near Troy
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 Troy.
Temple
McGregor
Killeen, Texas
Waco, TX
Flight Path Map
This map shows the direct air route between San Antonio and McKinney. Straight-line distance: 283.31 mi (455.94 km).
#1 San Antonio
The seventh most populous city in the United States and the center of the San Antonio metropolitan area.
| Population | 1,567,118 |
| Coordinates | 29.4241200, -98.4936300 |
| Altitude | 198 |
| 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: 523 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 10h 49m |
| 40 mph (64.37 km/h) | 08h 07m |
| 50 mph (80.47 km/h) | 06h 30m |
| 60 mph (96.56 km/h) | 05h 25m |
| 70 mph (112.65 km/h) | 04h 38m |
| 80 mph (129 km/h) | 04h 03m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.78 | $43.35 | $86.69 |
| Mid-grade | $4.25 | $48.77 | $97.54 |
| Premium | $4.59 | $52.66 | $105.32 |
| Diesel | $3.99 | $45.80 | $91.60 |
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 19, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.