Origin
San Antonio, TX
Afternoon in San Antonio on Sunday
Local time
2:25 PM
CDT
Current temp
81°F
Unavailable
Live forecast
Trip from San Antonio, TX to McKinney, TX
Drive Time
5h 31m
Distance
305.6 mi
492 km
Drive Score
9/10
Great drive
Same Day?
Yes, doable
Fuel Cost
$47
one way
San Antonio, TX
Wikimedia Commons
McKinney, TX
Jeff Stapleton
Trip Overview
Traveling from San Antonio to McKinney covers 325.1 miles across the Texas Great Plains. You should plan for a driving time of approximately 4 hours and 46 minutes, making this a manageable day trip if you get an early start. Since the route relies on local roads like West Market Street, East Market Street, and East Commerce Street rather than major interstates, you will want to stay alert behind the wheel. Budget around $48 for fuel to complete the journey. Because this is a turn-heavy drive, it is best suited for those who prefer staying engaged with the road rather than cruising on autopilot. With only one recommended stop, you can easily reach your destination in McKinney by the end of the day.
Trip Pace
Same-day drive is realistic
A same-day return is possible, but it will make for a full day on the road.
Break Rhythm
1 planned break
Plan on a short reset every 3 to 4 hours to stay fresh behind the wheel.
Midpoint
152.8 miles from San Antonio, TX
A natural place for your longest stop of the day , about 2h 47m into the drive .
Drive Character
Expect a very different experience than your typical interstate commute on this 325.1-mile journey. Because the route features a 0% highway share, you will be navigating a turn-heavy local drive rather than high-speed lanes. The road demands your full attention as you transition between East Commerce Street and other local thoroughfares. While the terrain remains consistent throughout the Great Plains, the technical nature of these specific roads keeps the drive feeling active and hands-on. You will find that the lack of highway miles makes the trip feel longer than the clock suggests, so prepare for a steady pace rather than a quick sprint.
Expect a mix of faster highway mileage and slower local approaches near the beginning or end.
There are about 34 navigation steps in the underlying route data, so the final approach matters more than the middle miles.
Purple Heart Trail is the longest continuous segment at about 188.3 miles.
How Hard Is This Drive?
This route mixes highway mileage with some local-road sections near the start or finish. This route has several spots where lane changes, forks, or exits need your full attention. The trickiest moment comes around 0.9 miles in.
Route Complexity
10/10
High effort - long or complex enough to need steady focus all day
This is a demanding drive. With 19 significant decision points across 305.6 miles, you will need to stay alert — especially through interchange areas and urban stretches. Consider splitting it into segments if you are not comfortable with fast highway navigation.
Where does it get tricky?
The main spots that need attention: at 0.9 miles: Multiple destination signs - pick the right one; at 271.1 miles: Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one; at 272.8 miles: Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one.
Critical Maneuvers
5 of 19 key pointsThese are the spots where you need to pay the most attention. Preview them before you drive.
7
0.9 mi into trip
|
~1m in
Take the ramp toward US 281 North, I 37 North
Multiple destination signs - pick the right one
Toward US 281 North, I 37 North
8
271.1 mi into trip
|
~4h 49m in
Take the exit toward I 30 East: Texarkana, Riverfront Boulevard, Griffin Street
Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one
Use the slight right lane.
Exit 427A
Toward I 30 East: Texarkana, Riverfront Bouleva...
8
272.8 mi into trip
|
~4h 52m in
Take the exit toward I 45, US 75: Houston, McKinney
Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one
Use the slight right lane.
Exit 46
Toward I 45, US 75: Houston, McKinney
8
273.8 mi into trip
|
~4h 54m in
Keep slight right at fork toward US 75 North: McKinney, Bryan Street East
Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one
Use the none lane.
Toward US 75 North: McKinney, Bryan Street East
8
301.4 mi into trip
|
~5h 24m in
Take the exit toward SRT South, TX 5: Sam Rayburn Tollway
Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one
Use the straight / slight right lanes.
Exit 38C
Toward SRT South, TX 5: Sam Rayburn Tollway
Towns Along This Route
Between San Antonio, TX and McKinney, TX, road signs point toward Fort Worth, Texarkana, Convention Center and Bryan Street East.
Fort Worth
271.5 mi in
|
~4h 50m
Texarkana
271.5 mi in
|
~4h 50m
Convention Center
271.6 mi in
|
~4h 50m
Bryan Street East
273.8 mi in
|
~4h 54m
Main Roads
| Road | Distance | Duration |
|---|---|---|
| Purple Heart Trail | 188.3 mi | 3h 18m |
| I 35E | 56.2 mi | 58m |
| North Central Expressway | 26.6 mi | 28m |
| North Pan Am Expressway | 15.6 mi | 18m |
| South Jack Kultgen Expressway | 6.6 mi | 7m |
| Interstate Highway 35 | 1.9 mi | 2m |
| South Tennessee Street | 1.1 mi | 2m |
| South McDonald Street | 1 mi | 1m |
Longest stretch:
Purple Heart Trail
— 188.3 mi, about 3h 18m
Turn-by-Turn Driving Directions
Step-by-step road directions between San Antonio, TX and McKinney, TX.
1
Start on Dolorosa Street
143 ft
·
4 sec
·
Dolorosa Street
2
Continue on West Market Street
0.4 mi
·
42 sec
·
West Market Street
3
Continue on East Market Street
0.4 mi
·
45 sec
·
East Market Street
Use the none lane.
4
Turn left
363 ft
·
13 sec
Use the left lane.
5
Turn straight onto East Commerce Street
216 ft
·
12 sec
·
East Commerce Street
6
Take the ramp
0.2 mi
·
28 sec
Toward US 281 North, I 37 North
7
Merge onto I 37; US 281
0.8 mi
·
55 sec
·
William J Bordelon Freeway
8
Take the exit
0.6 mi
·
1 min
Exit 142A
Toward I 35 North: Austin
Use the slight right lane.
9
Merge onto I 35
8.2 mi
·
10 min
·
North Pan Am Expressway
Use the none lane.
10
Keep slight left at fork onto North Pan Am Expressway
7.4 mi
·
8 min
·
North Pan Am Expressway
Toward I 35: Austin
Use the none / straight / slight right lanes.
11
Continue on I 35
12 mi
·
12 min
·
Purple Heart Trail
Use the none / straight / slight right lanes.
12
Continue on I 35
1.9 mi
·
2 min
·
Interstate Highway 35
Use the none / straight / slight right lanes.
13
Continue on I 35
48 mi
·
52 min
·
Purple Heart Trail
Use the none lane.
14
Keep slight right at fork onto I 35; US 290
96 mi
·
1 hr 40 min
·
Purple Heart Trail
Use the none / straight / slight right lanes.
15
Continue on I 35
6.6 mi
·
7 min
·
South Jack Kultgen Expressway
Use the none / straight / slight right lanes.
16
Continue on I 35; US 77
33 mi
·
33 min
·
Purple Heart Trail
Use the none lane.
17
Keep slight right at fork onto I 35E
56 mi
·
58 min
·
I 35E
Toward I 35E: Dallas
Use the slight right lane.
18
Take the exit
0.4 mi
·
41 sec
Exit 427A
Toward I 30 East: Texarkana, Riverfront Boulevard, Griffin Street
Use the slight right lane.
19
Keep slight left at fork
422 ft
·
5 sec
Toward I 35E North, I 30 West: Denton, Fort Worth, Texarkana
20
Keep slight right at fork
0.4 mi
·
32 sec
Toward I 30 East: Texarkana, Convention Center
21
Keep slight left at fork
385 ft
·
6 sec
Toward I 30 East: Texarkana
Use the none lane.
22
Continue on I 30; US 67
0.8 mi
·
1 min
·
East R L Thornton Freeway
23
Take the exit
0.5 mi
·
45 sec
Exit 46
Toward I 45, US 75: Houston, McKinney
Use the slight right lane.
24
Keep slight left at fork
0.5 mi
·
1 min
Toward US 75 North: McKinney
Use the slight left lane.
25
Keep slight right at fork
0.3 mi
·
26 sec
Toward US 75 North: McKinney, Bryan Street East
Use the none lane.
26
Merge onto US 75
0.7 mi
·
49 sec
·
Julius Schepps Freeway
Use the none lane.
27
Continue on US 75
27 mi
·
28 min
·
North Central Expressway
Use the none / straight / right lanes.
28
Take the exit
0.3 mi
·
21 sec
Exit 38C
Toward SRT South, TX 5: Sam Rayburn Tollway
Use the straight / slight right lanes.
29
Keep slight right at fork
0.7 mi
·
1 min
Use the slight right lane.
30
Merge onto Spur 399
0.9 mi
·
1 min
·
Spur 399
Use the none lane.
31
Continue on TX 5
1.0 mi
·
1 min
·
South McDonald Street
Use the none lane.
32
Turn slight left
281 ft
·
10 sec
33
Continue on South Tennessee Street
1.1 mi
·
2 min
·
South Tennessee Street
34
Arrive at destination
North Tennessee Street
Trip Plan
To keep your 4-hour and 46-minute trip moving smoothly, try to depart early in the morning to avoid local traffic congestion. Since this route is entirely local, your pace will be dictated by turns and intersections, making your single planned stop essential for stretching your legs. Keep that $48 fuel budget in mind when filling up, as local driving can sometimes be less fuel-efficient than steady highway cruising. Since you are navigating through several local streets, double-check your GPS frequently to ensure you stay on the correct path. This route offers plenty of flexibility, so do not hesitate to pull over if you need a break from the constant turning required along this path.
Morning Departure
An early start around 7-8 AM gets you there with plenty of daylight left.
Evening Departure
A late afternoon start means arriving after dark. Morning is better.
You can normally do this drive in one day.
Plan roughly 1 meaningful break for fuel, food, and rest.
The halfway point lands around 152.8 miles from San Antonio, TX, or about 2h 47m into the drive.
The longest continuous stretch on this route runs about 188.3 miles.
This is a comfortable same-day trip.
Departure
Before you leave
Start with fuel, water, and navigation already sorted so the first hour feels easy.
First stop
Around 80 miles or 1h 30m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 152.8 miles or 2h 47m in
This is the best place for your longest stop, a real meal, and a full fuel check.
Final approach
Final hour starts around 4h 28m
Traffic, exits, and arrival timing usually matter more near McKinney, TX than in the middle of the route.
Before You Leave
+
Open the route before leaving San Antonio, TX so your first major turns are already loaded.
+
Leave with enough water and a charging cable within reach, not packed away.
+
Check your fuel range against the first long segment, especially if you are starting outside city service areas.
Day 1
Settle into the route from San Antonio, TX
This is one driving day of about 305.6 miles and 5h 31m.
Your first comfortable stop window is around 80 miles from San Antonio, TX.
This route can stay practical as a one-day drive if traffic stays reasonable.
Plan about 1 real break rather than only quick fuel stops.
The longest stretch is on Purple Heart Trail for about 188.3 miles.
Where to Stop
Rest stops, refuel points, and overnight suggestions along this route.
Halfway Point
Midpoint
About 152.8 mi from San Antonio, TX · 2h 47m into the drive
Mid-route town
Meal stop
153 mi into the route
Best for: Lunch, fuel, and a longer reset
This sits close to the middle of the route, so it works well for the longest stop of the day.
Pacing Suggestions
Fuel and coffee
A short stop after about 80 miles helps settle the day before fatigue starts building.
Meal break
The midpoint is around 152.8 miles from San Antonio, TX, which is a good place for a longer meal and fuel stop.
Before the longest stretch
Fuel checkTop up before Purple Heart Trail if your tank is already low. That segment runs about 188.3 miles.
Arriving in McKinney, TX
The final approach into McKinney, TX usually feels slower than the middle of the drive, so avoid planning your tightest schedule at the very end.
Try to arrive with enough fuel left to skip an immediate station stop unless you already know the area around McKinney, TX.
After long uninterrupted mileage, take five minutes before the last urban segment to reset and refocus on exits, merges, and city traffic.
These stop ideas are pacing suggestions — the exact town or exit can change with traffic, hotel plans, and fuel range.
Fuel & Cost
Regular Gas
$46.68 one way
$93.36 round trip
$3.88/gal
25.4 MPG avg
107 kg CO2
| Fuel Type | $/gal | One Way | Round Trip |
|---|---|---|---|
| midgrade | $4.25 | $51.16 | $102.32 |
| premium | $4.59 | $55.24 | $110.47 |
| diesel | $5.64 | $67.89 | $135.79 |
Estimated Tolls: $2.13
Central Expressway
(26.6 mi)
$2.13
Toll estimates based on average 2024-2025 rates. EZ-Pass/SunPass discounts may lower the actual cost.
Estimated Trip Cost (one way, 1 person)
Fuel
$47
Tolls
$2
Meals
$25–$50
Total
$74–$99
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 106.9 kg one way. Prices: EIA weekly data, 2026-04-06.
Driving Electric?
About $32 in charging · 1 stop · 66% less CO2
| Vehicle Type | kWh | Stops | DC Fast | Home Charge |
|---|---|---|---|---|
| Average EV | 91.7 | 1 | $32.09 | $14.67 |
| Efficient EV | 76.4 | 0 | $26.74 | $12.22 |
| EV Truck/SUV | 122.2 | 1 | $42.78 | $19.56 |
Gas CO2
107 kg
EV CO2
36 kg (66% less)
Plan for 1 charging stop. A 30-minute DC fast charge mid-route should be enough to complete the trip comfortably.
DC fast charging avg $0.35/kWh. Home charging avg $0.16/kWh. US grid CO2: 0.39 kg/kWh.
Travel Intel
Current conditions at both ends of the drive.
Destination
McKinney, TX
Afternoon in McKinney on Sunday
Local time
2:25 PM
CDT
Current temp
59°F
Unavailable
Live forecast
Seasonal Notes
Summer travel usually means heavier construction, hotter rest stops, and busier weekend traffic around major cities.
Winter travel shortens daylight, so a route that looks manageable on paper can feel much longer after dark.
Holiday weekends tend to make both departure and arrival windows slower than the raw route time suggests.
Time zone
Same local time
Origin and destination are on the same clock, so arrival timing is easier to judge at a glance.
Temperature spread
22 degrees cooler at arrival
A meaningful temperature swing is a good cue to rethink layers, water, and how soon you want to arrive.
Road read
5h 31m on the road
An early start around 7-8 AM gets you there with plenty of daylight left.
Weather data from the National Weather Service. Conditions may change; check closer to your travel date.
Frequently Asked Questions
The drive from San Antonio, TX to McKinney, TX covers 305.6 miles and takes about 5h 31m without stops. Add 15-30 minutes for a fuel or rest stop on longer drives.
The main roads are Purple Heart Trail, I 35E, North Central Expressway. Expect a mix of highway and local road driving.
This is a comfortable same-day trip.
The midpoint is about 152.8 miles from San Antonio, TX. Look for rest areas, gas stations, or food options near the halfway mark.
At current regular gas prices, expect to spend about $46.68 one way. This estimate uses 25.4 MPG — your actual cost will vary with your vehicle's fuel efficiency and current gas prices.
An early start around 7-8 AM gets you there with plenty of daylight left. A late afternoon start means arriving after dark. Morning is better.
Plan about 1 meaningful break for fuel, food, or rest. Plan on a short reset every 3 to 4 hours to stay fresh behind the wheel.
This is a demanding drive. With 19 significant decision points across 305.6 miles, you will need to stay alert — especially through interchange areas and urban stretches. Consider splitting it into segments if you are not comfortable with fast highway navigation.
The main spots that need attention: at 0.9 miles: Multiple destination signs - pick the right one; at 271.1 miles: Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one; at 272.8 miles: Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one.
Between San Antonio, TX and McKinney, TX, road signs point toward Fort Worth, Texarkana, Convention Center and Bryan Street East.
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