This straightforward 135.5-mile drive from Hewitt, TX to McKinney, TX is easily manageable as a single-day trip, taking approximately 2 hours and 28 minutes. You'll primarily navigate major highways, including I-35E and North Central Expressway, making it a largely highway-focused experience. With an estimated fuel cost of $20, this route offers an economical option for travelers. Both Hewitt and McKinney are situated within the Great Plains region, so you can expect a consistent landscape throughout your journey. This trip is ideal for those seeking a direct and efficient connection between these two Texas cities.
Trip Pace
Same-day drive is realistic
A same-day return is realistic if you keep stops short.
Midpoint
67.8 miles from Hewitt, TX
A natural place for your longest stop of the day
, about 1h 12m into the drive
.
Main Roads
Road
Distance
Duration
I 35E
56.2 mi
58m
Purple Heart Trail
35.6 mi
35m
North Central Expressway
26.6 mi
28m
South Jack Kultgen Expressway
6.6 mi
7m
South Tennessee Street
1.1 mi
2m
1st Street
1 mi
2m
South McDonald Street
1 mi
1m
Spur 399
0.9 mi
1m
Longest stretch:
I 35E
— 56.2 mi, about 58m
Turn-by-Turn Driving Directions
Step-by-step road directions between Hewitt, TX and McKinney, TX.
1
Start on 1st Street
1.0 mi·2 min·1st Street
2
Continue on Flint Rock Road
0.2 mi·28 sec·Flint Rock Road
3
Turn left onto FM 2113
0.6 mi·1 min·East Spring Valley Road
4
Take the ramp
0.9 mi·1 min
Toward I 35 North
5
Merge onto I 35
2.6 mi·2 min·Purple Heart Trail
Use the straight / slight right lanes.
6
Continue on I 35
6.6 mi·7 min·South Jack Kultgen Expressway
Use the straight / slight right lanes.
7
Continue on I 35; US 77
33 mi·33 min·Purple Heart Trail
Use the straight / slight right lanes.
8
Keep slight right at fork onto I 35E
56 mi·58 min·I 35E
Toward I 35E: DallasUse the slight right lane.
9
Take the exit
0.4 mi·41 sec
Exit 427AToward I 30 East: Texarkana, Riverfront Boulevard, Griffin StreetUse the slight right lane.
10
Keep slight left at fork
422 ft·5 sec
Toward I 35E North, I 30 West: Denton, Fort Worth, Texarkana
11
Keep slight right at fork
0.4 mi·32 sec
Toward I 30 East: Texarkana, Convention Center
12
Keep slight left at fork
385 ft·6 sec
Toward I 30 East: Texarkana
13
Continue on I 30; US 67
0.8 mi·1 min·East R L Thornton Freeway
14
Take the exit
0.5 mi·45 sec
Exit 46Toward I 45, US 75: Houston, McKinneyUse the slight right lane.
15
Keep slight left at fork
0.5 mi·1 min
Toward US 75 North: McKinneyUse the slight left lane.
16
Keep slight right at fork
0.3 mi·26 sec
Toward US 75 North: McKinney, Bryan Street East
17
Merge onto US 75
0.7 mi·49 sec·Julius Schepps Freeway
Use the straight / slight right lanes.
18
Continue on US 75
27 mi·28 min·North Central Expressway
Use the straight / right lanes.
19
Take the exit
0.3 mi·21 sec
Exit 38CToward SRT South, TX 5: Sam Rayburn TollwayUse the straight / slight right lanes.
20
Keep slight right at fork
0.7 mi·1 min
Use the slight right lane.
21
Merge onto Spur 399
0.9 mi·1 min·Spur 399
22
Continue on TX 5
1.0 mi·1 min·South McDonald Street
23
Turn slight left
281 ft·10 sec
24
Continue on South Tennessee Street
1.1 mi·2 min·South Tennessee Street
25
Arrive at destination
North Tennessee Street
Trip Plan
Given the 2 hour and 28 minute duration, this is a perfect one-day trip, offering flexibility on when you depart. Leaving in the morning or early afternoon will allow you to avoid peak traffic, especially as you approach the Dallas-Fort Worth metroplex. Keep an eye on your fuel gauge, as the longest stretch without a major exit opportunity is 56.2 miles on I-35E. While there are no specified stops in the data, planning a brief break around the halfway point can help you stay refreshed for the final leg of your drive.
Morning Departure
Leave by 9 AM and you'll arrive before lunch.
Evening Departure
Even a 4 PM departure gets you there before dark in summer.
You can normally do this drive in one day.
You may only need one short stretch break if traffic stays light.
The halfway point lands around 67.8 miles from Hewitt, TX, or about 1h 12m into the drive.
The longest continuous stretch on this route runs about 56.2 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 30 miles or 33m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 67.8 miles or 1h 12m in
This is the best place for your longest stop, a real meal, and a full fuel check.
Final approach
Final hour starts around 1h 59m
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 Hewitt, 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 Hewitt, TX
This is one driving day of about 135.5 miles and 2h 28m.
Your first comfortable stop window is around 30 miles from Hewitt, TX.
This route can stay practical as a one-day drive if traffic stays reasonable.
The longest stretch is on I 35E for about 56.2 miles.
Where to Stop
Rest stops, refuel points, and overnight suggestions along this route.
Place data sourced from public business listings. Hours and availability may vary.
Heads-up: tricky spots
5 of 15
5 decision points cluster between mile 44.9 and 131.4 — GPS handles the exact turns, but know they're coming. Your lane choice matters more than the turn itself.
7
44.9 mi into trip|~48m in|I 35E
Keep slight right at fork onto I 35E toward I 35E: Dallas
Highway fork - watch signs carefully. Lane positioning matters here
Use the slight right lane.
Toward I 35E: Dallas
8
101.1 mi into trip|~1h 46m 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
102.8 mi into trip|~1h 49m 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
7
103.2 mi into trip|~1h 50m in
Keep slight left at fork toward US 75 North: McKinney
Highway fork - watch signs carefully. Lane positioning matters here
Use the slight left lane.
Toward US 75 North: McKinney
8
131.4 mi into trip|~2h 21m 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
Fuel & Cost
Regular Gas
$20.47 one way
$40.95 round trip
$3.84/gal25.4 MPG avg47 kg CO2
Fuel Type
$/gal
One Way
Round Trip
midgrade
$4.20
$22.41
$44.82
premium
$4.54
$24.19
$48.39
diesel
$5.61
$29.92
$59.83
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
$20
Tolls
$2
Meals
$25–$50
Total
$48–$73
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 47.4 kg one way.
Prices: EIA weekly data, 2026-04-13.
Driving Electric?
About $14 in charging
· 0 stops
· 66% less CO2
Vehicle Type
kWh
Stops
DC Fast
Home Charge
Average EV
40.7
0
$14.23
$6.50
Efficient EV
33.9
0
$11.86
$5.42
EV Truck/SUV
54.2
0
$18.97
$8.67
Gas CO2
47 kg
EV CO2
16 kg (66% less)
This trip is well within single-charge range for most EVs. No charging stops needed if you start fully charged.
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.
Forecast as of Apr 15, 2026
Origin
Hewitt, TX
Late night
in Hewitt on Sunday
Local time
3:01 AM
CDT
Current temp
60°F
Unavailable
Live forecast
Destination
McKinney, TX
Late night
in McKinney on Sunday
Local time
3:01 AM
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
1 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
2h 28m on the road
Use the two city cards together: check the sky where you start, then compare it with the local time and temperature at arrival.
Weather data from the National Weather Service. Conditions may change; check closer to your travel date.
National Parks Near This Route
Worth a detour if your schedule allows.
Waco Mammoth National Monument
National Monument
Standing as tall as 14 feet and weighing 20,000 pounds, Columbian mammoths roamed across what is present-day Texas thousands of years ago. Today, the fossil specimens represent the nation's first and...
Park data from the National Park Service API. Alerts update every 2 hours.
More Details
What kind of drive is this?
Expect a highway-centric journey for 67% of this 135.5-mile route. You'll spend a significant portion of your time on I-35E, which features the longest uninterrupted stretch at 56.2 miles. While the drive is predominantly on major thoroughfares like Purple Heart Trail and North Central Expressway, the focus remains on efficient travel rather than scenic detours. This highway-focused profile means you'll experience consistent speeds and straightforward navigation, making it a predictable drive.
67% highway — fuel and pacing are the main things to plan.
25 navigation steps total — most of the decisions cluster near the start and finish.
Longest single stretch: 56.2 mi on I 35E.
How Hard Is This Drive?
10/10
This is a straightforward highway drive that stays mostly on I 35E and Purple Heart Trail. This route has several spots where lane changes, forks, or exits need your full attention. The trickiest moment comes around 44.9 miles in near I 35E.
Driving Effort10/10
High effort - long or complex enough to need steady focus all day
Balances navigation complexity with total wheel time.
This is a demanding drive. With 15 significant decision points across 135.5 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 44.9 miles (I 35E): Highway fork - watch signs carefully. Lane positioning matters here; at 101.1 miles: Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one; at 102.8 miles: Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one.
Towns Mentioned on Route Signs
Based on OSRM destination-sign hints, not a full list of every settlement the road passes.
Between Hewitt, TX and McKinney, TX, road signs point toward Fort Worth, Texarkana, Convention Center and Bryan Street East.
Doable as a same-day drive at 2h 28m. Total distance: 135.5 miles.
Family Friendly
Moderate complexity with 0 natural rest stops along the way.
Solo Traveler
2h 28m drive, comfortable solo distance.
First-Time Driver
Mostly highway driving (67%). Some complex stretches to watch for.
Frequently Asked Questions
The longest stretch is about 56.2 miles on I 35E. The full list of main roads is in the Roads section above.
Expect about $2.13 in tolls one way, starting with Central Expressway. Most Northeast and Midwest toll agencies accept E-ZPass; in the West and Texas, transponders like TxTag or FasTrak apply. If you do not have a transponder, cashless tolling plates will mail a bill to the vehicle's registered address — usually with a surcharge, so a rental-car toll pass is often cheaper than paying by mail.
It helps. This route has a higher-than-average number of complex decision points, which get harder in the dark. If the last hour of the trip is on surface roads or mountain grades, aim to arrive at McKinney, TX before sunset when you can. Check the Trip Plan for departure windows that land you in daylight.
Only with planning. This is a long drive for kids — consider splitting it into two days rather than pushing through. Dedicated rest areas are limited, so plan gas or food stops as your bathroom breaks.
The main spots that need attention: at 44.9 miles (I 35E): Highway fork - watch signs carefully. Lane positioning matters here; at 101.1 miles: Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one; at 102.8 miles: Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one.
Yes — Waco Mammoth National Monument. See the National Parks section for detour distances and tips on detours.
Yes. A round trip is manageable in a single day if you plan a break at McKinney, TX before heading back.
