Trip from McKinney, TX to Boerne, TX
Pin this tripCompiled and reviewed by the US Trip Planner planning team at COD Solutions Oy · Last reviewed Jul 20, 2026 · Editorial standards
Drive Time
5h 50m
Distance
324 mi
521 km
Drive Score
9/10
Great drive
Same Day?
Yes, doable
Fuel Cost
$44
one way
EV Charging
Unknown
Best Time to Leave
Estimated drive times based on typical traffic patterns. Actual times may vary with weather, construction, and real-time conditions.
McKinney, TX
Wikimedia Commons
Boerne, TX
Wikimedia Commons
Trip Overview
McKinney to Boerne is 324 miles and takes about 5 hours 50 minutes via Purple Heart Trail and I-35, with a fuel budget near $51 and enough daylight to finish in a day. This drive primarily traverses the Great Plains region of Texas, offering a straightforward path with mostly highway driving. It's a practical choice for a single-day trip, connecting two points within the state with minimal fuss. You'll experience a consistent driving environment for the majority of the trip.
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
162 miles from McKinney, TX
A natural place for your longest stop of the day , about 2h 53m into the drive .
Main Roads
| Road | Distance | Duration |
|---|---|---|
| Purple Heart Trail | 99.6 mi | 1h 46m |
| South R L Thornton Freeway | 89.9 mi | 1h 32m |
| I 35 | 55.8 mi | 58m |
| Central Expressway | 29.2 mi | 31m |
| Anderson Loop | 16.7 mi | 18m |
| I 10 | 14.5 mi | 15m |
| North Jack Kultgen Expressway | 6.6 mi | 7m |
| North Pan Am Expressway | 1.8 mi | 1m |
Traffic on I-35
Hour-of-day weekday pattern from 96 FHWA count stations on your route.
Peak
5 PM
~4,090 veh/hr typical
Quietest
2 AM
~671 veh/hr
Peak-to-quiet ratio
6.1×
busier at peak than in the quiet hours
Averaged across 51 weeks of 2023 FHWA Travel Monitoring Analysis System data. Weekday hours only (Mon–Fri).
Turn-by-Turn Driving Directions
Step-by-step road directions between McKinney, TX and Boerne, TX.
Start on North Tennessee Street
Turn left onto East Virginia Street
Turn left onto South Central Expressway
Take the ramp
Merge onto US 75; TX 121
Take the exit
Continue on North Central Expressway
Turn right onto Elm Street
Turn left onto North Pearl Expressway
Turn right onto Young Street
Turn left onto South Harwood Street
Turn right onto Canton Street
Take the ramp
Keep slight left at fork
Keep slight left at fork
Keep slight left at fork
Continue on I 35E
Continue on I 35E
Continue on I 35; US 77
Continue on I 35
Keep slight left at fork onto I 35
Keep slight left at fork onto I 35; US 290
Continue on I 35
Continue on I 35
Continue on I 35
Take the exit
Keep slight right at fork
Keep slight left at fork
Merge onto Loop 1604
Take the exit
Turn straight onto North Loop 1604 West
Turn right onto Interstate 10 West
Take the ramp
Merge onto I 10; US 87
Keep slight right at fork onto I 10; US 87
Take the exit
Turn straight onto Interstate 10 West
Turn right onto Christus Parkway
Turn left onto US 87 Bus
Turn right onto RM 474
Arrive at destination
Trip Plan
Given the 5 hour 50 minute estimated drive time, departing McKinney in the morning should allow you to reach Boerne with daylight to spare. With only one recommended stop and a fuel cost around $51, this trip is easily manageable in a single day. Keep an eye on your fuel gauge, especially during the longest stretch on the Purple Heart Trail, as services can be spaced out. You'll want to plan your refueling before hitting that longer segment to ensure a smooth onward journey.
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.
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 71 miles or 1h 19m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 162 miles or 2h 53m 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 44m
Traffic, exits, and arrival timing usually matter more near Boerne, TX than in the middle of the route.
Before You Leave
Open the route before leaving McKinney, 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 McKinney, TX
This is one driving day of about 324 miles and 5h 50m.
Where to Stop
Rest stops, refuel points, and overnight suggestions along this route.
Mid-route town
Meal stop
162 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
A short stop after about 71 miles helps settle the day before fatigue starts building.
The midpoint is around 162 miles from McKinney, 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 99.6 miles.
These stop ideas are pacing suggestions — the exact town or exit can change with traffic, hotel plans, and fuel range.
Stops Along Your Drive
Picked by where they fit in your drive — first break, midpoint reset, final stretch.
Service Plaza
Hill County Northbound Rest Area
Buc-ee's
Flying J Travel Center
Walburg Travel Center & Food Court
Love's Travel Stop
Petro Stopping Centers
Buc-ee's
Service Plaza
QuikTrip
Ascent Travel Center
TA
Flying J Travel Plaza
Pilot Travel Center
Hill County Southbound Rest Area
QuikTrip
Road Ranger
Marlstone Retail Center
Love's Travel Stop
Love's Travel Stop
Buc-ee's
Pilot Travel Center
TA
Service Plaza
Bell County Southbound Rest Area
QuikTrip
Service Plaza
Service Plaza
Service Plaza
Service Plaza
Service Plaza
Service Plaza
Service Plaza
Service Plaza
Service Plaza
Service Plaza
Service Plaza
Service Plaza
Love's Travel Stop
Minuteman Press
SoPac Trail Rest Area
Service Plaza
Pilot Travel Center
Animal World & Snake Farm Zoo
Near the end, short detour
New Braunfels, Texas
Hours: 10 am–6 pm
+18304024603
Visit websiteMaui Maui Kids Play Island
Near the end, short detour
San Antonio, Texas
Hours: 9 am–6 pm
+12102578118
Visit websiteGet Out of My Escape Room
Near the end, short detour
Hill Country Village, Texas
Hours: Closed
+12104753174
Visit websiteChildren's Park
Later in the drive, short detour
San Marcos, Texas
Hours: 6 am–11 pm
+15123938400
Visit websiteHeard Natural Science Museum & Wildlife Sanctuary
Near the start, short detour
McKinney, Texas
Hours: 9 am–4 pm
+19725625566
Visit websiteCalaboose African American History Museum
Later in the drive, short detour
San Marcos, Texas
Hours: 10 am–2 pm
+15123938421
Visit websiteCultural Activities Center
Around the midpoint, short detour
Temple, Texas
Hours: 8:30 am–4 pm
+12547739926
Visit websiteCascade Caverns
Near the end, ~9 min detour
Boerne, Texas
Hours: 9 am–5 pm
+18307558080
Visit websitePlace data sourced from public business listings. Hours and availability may vary.
Heads-up: tricky spots
5 of 305 decision points cluster between mile 31.5 and 322.1 — GPS handles the exact turns, but know they're coming. Your lane choice matters more than the turn itself.
Take the exit toward Downtown, Good-Latimer Expressway
Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one
Keep slight left at fork toward I 35E North, I 35E South: Denton, Waco
Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one
Keep slight left at fork toward I 35E South: Waco
Highway fork - watch signs carefully. Lane positioning matters here
Keep slight left at fork onto I 35; US 290 / Purple Heart Trail toward 32nd Street, Dean Keeton Street
Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one
Take the exit toward TX 46: New Braunfels, Bandera
Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one
Fuel & Cost
Regular Gas
$44.38 one way
$88.76 round trip
| Fuel Type | $/gal | One Way | Round Trip |
|---|---|---|---|
| midgrade | $3.89 | $49.57 | $99.14 |
| premium | $4.23 | $53.89 | $107.79 |
| diesel | $4.80 | $61.18 | $122.35 |
Estimated Tolls: $2.44
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
$44
Tolls
$2
Meals
$25–$50
Total
$72–$97
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 113.4 kg one way. Prices: EIA weekly data, 2026-07-13.
Driving Electric?
About $34 in charging · 1 stop · 66% less CO2
| Vehicle Type | kWh | Stops | DC Fast | Home Charge |
|---|---|---|---|---|
| Average EV | 97.2 | 1 | $34.02 | $15.55 |
| Efficient EV | 81 | 0 | $28.35 | $12.96 |
| EV Truck/SUV | 129.6 | 1 | $45.36 | $20.74 |
Gas CO2
113 kg
EV CO2
38 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.
Origin
McKinney, TX
Late night in McKinney on Monday
Local time
1:22 AM
CDT
Current temp
77°F
Mostly Clear
Flood Warning
Flood Warning issued July 19 at 2:06AM CDT until July 20 at 5:00AM CDT by NWS Austin/San Antonio TX
Flood Warning
Flood Warning issued July 19 at 2:06AM CDT until July 21 at 6:00AM CDT by NWS Austin/San Antonio TX
Destination
Boerne, TX
Late night in Boerne on Monday
Local time
1:22 AM
CDT
Current temp
73°F
Mostly Cloudy
Flood Warning
Flood Warning issued July 19 at 2:06AM CDT until July 20 at 5:00AM CDT by NWS Austin/San Antonio TX
Flood Warning
Flood Warning issued July 19 at 2:06AM CDT until July 21 at 6:00AM CDT by NWS Austin/San Antonio TX
96°F
Troy, TX
162 mi in
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
4 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 50m 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.
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...
San Antonio Missions National Historical Park
National Historical Park
Welcome to San Antonio Missions, a National Park Service site and the only UNESCO World Heritage Site in Texas. Each mission in the park is a center of community and has been since the early 1700s. Th...
Park data from the National Park Service API. Alerts update every 2 hours.
What kind of drive is this?
This route is mostly highway, with 62% of the total mileage on interstates. You'll encounter a continuous stretch of 99.6 miles on the Purple Heart Trail, indicating a significant portion of the drive will be on high-speed roads. Expect a consistent driving experience with fewer transitions between highway and surface streets until later in the drive.
How Hard Is This Drive?
9/10
This is a straightforward highway drive that stays mostly on Purple Heart Trail and South R L Thornton Freeway. This route has several spots where lane changes, forks, or exits need your full attention. The trickiest moment comes around 31.5 miles in.
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 30 significant decision points across 324 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 31.5 miles: Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one; at 33.6 miles: Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one; at 33.7 miles: Highway fork - watch signs carefully. Lane positioning matters here.
Elevation Profile
Gently rolling terrain
Total Climb
1,273 ft
Total Descent
494 ft
Highest Point
1,406 ft
~324 mi in
Elevation Range
872 ft
Towns Mentioned on Route Signs
Based on OSRM destination-sign hints, not a full list of every settlement the road passes.
Towns Mentioned on Route Signs
Based on OSRM destination-sign hints, not a full list of every settlement the road passes.
Between McKinney, TX and Boerne, TX, road signs point toward Downtown, Denton, Waco, Dallas Zoo and Loop 1604 West.
Downtown
Denton
Waco
Dallas Zoo
Loop 1604 West
About the Cities
Starting in McKinney, TX
Full guide →Founded 1848
McKinney is a city in the Blackland Prairie region of Texas.
Arriving in Boerne, TX
Full guide →Founded 1849
Top landmarks
- • Kendall Inn — historic place in Boerne, Kendall County, Texas
- • Herff-Rozelle Farm — historic district in Boerne, Kendall County, Texas
- • Kendall County Courthouse and Jail — historic place in Boerne, Kendall County, Texas
City content from Wikivoyage (CC BY-SA 4.0) and Wikidata (CC0).
Who Is This Route For?
Weekend Trip
Doable as a same-day drive at 5h 50m. Total distance: 324 miles.
Family Friendly
Moderate complexity with 1 natural rest stops along the way.
Solo Traveler
5h 50m drive, comfortable solo distance.
Frequently Asked Questions
How this page is built
Compiled by the US Trip Planner planning team at COD Solutions Oy from open government datasets — OSRM over OpenStreetMap for geometry, EIA for fuel prices, USGS 3DEP for elevation, NPS for national parks, and FHWA TMAS for hourly traffic volumes. See our methodology for refresh cadence and limitations.
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