Plano, TX to La Coste, TX is 315.7 miles and takes about 5h 43m via Purple Heart Trail, South R L Thornton Freeway, and I 35, with a fuel budget near $48 and enough daylight to finish in a day. This trip takes you across Texas, starting in the Great Plains region and ending in the same area. Expect a mixed drive that's manageable for a single day, with the bulk of your journey on major roadways. It's a straightforward path that should get you to your destination without too many surprises.
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
157.8 miles from Plano, TX
A natural place for your longest stop of the day
, about 2h 47m into the drive
.
Plano is a city of 285,000 people (2020) in the Dallas-Fort Worth Metroplex region of Texas and is north of Dallas. It is home to the headquarters of several large corporations.
Doable as a same-day drive at 5h 43m. Total distance: 315.7 miles.
Family Friendly
Moderate complexity with 1 natural rest stops along the way.
Solo Traveler
5h 43m drive, comfortable solo distance.
Drive Character
This route offers a mixed drive experience, with about 60% of it being highway travel. You'll encounter stretches on the Purple Heart Trail, South R L Thornton Freeway, and I 35. The longest uninterrupted segment you'll navigate is 99.6 miles on the Purple Heart Trail, so be prepared for a solid block of driving there. The road character is generally practical, designed for efficient travel across the Texas landscape.
Most of the miles stay on highways, which makes pacing and fuel planning easier than turn-by-turn city driving.
There are about 35 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 99.6 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 17.5 miles in.
Driving Effort9/10
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 26 significant decision points across 315.7 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 17.5 miles: Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one; at 19.7 miles: Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one; at 19.7 miles: Highway fork - watch signs carefully. Lane positioning matters here.
Critical Maneuvers
5 of 26 key points
These are the spots where you need to pay the most attention. Preview them before you drive.
8
17.5 mi into trip|~19m in
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
Use the slight left lane.
Exit 284C
Toward Downtown, Good-Latimer Expressway
9
19.7 mi into trip|~24m in
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
Use the straight / slight right lanes.
Toward I 35E North, I 35E South: Denton, Waco
7
19.7 mi into trip|~24m in
Keep slight left at fork toward I 35E South: Waco
Highway fork - watch signs carefully. Lane positioning matters here
Use the left / right lanes.
Toward I 35E South: Waco
8
210.3 mi into trip|~3h 42m in|I 35; US 290 / Purple Heart Trail
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
Use the slight left lane.
Toward 32nd Street, Dean Keeton Street
8
280.6 mi into trip|~4h 59m in
Take the exit toward I 410 West, Loop 368 South
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 166
Toward I 410 West, Loop 368 South
Towns Mentioned on Route Signs
Based on OSRM destination-sign hints, not a full list of every settlement the road passes.
Between Plano, TX and La Coste, TX, road signs point toward Downtown, Denton, Waco, Dallas Zoo and Loop 368 South.
Step-by-step road directions between Plano, TX and La Coste, TX.
1
Start on East 15th Street
0.6 mi·1 min·East 15th Street
Use the straight lane.
2
Turn left onto Central Expressway
0.2 mi·17 sec·Central Expressway
Use the left / straight lanes.
3
Take the ramp
0.2 mi·19 sec
Toward US 75 South
4
Merge onto US 75
17 mi·17 min·Central Expressway
Use the straight / slight right lanes.
5
Take the exit
501 ft·12 sec
Exit 284CToward Downtown, Good-Latimer ExpresswayUse the slight left lane.
6
Continue on North Central Expressway
0.7 mi·1 min·North Central Expressway
Use the left / straight lanes.
7
Turn right onto Elm Street
304 ft·10 sec·Elm Street
8
Turn left onto North Pearl Expressway
0.2 mi·28 sec·North Pearl Expressway
Use the straight lane.
9
Turn right onto Young Street
0.1 mi·19 sec·Young Street
10
Turn left onto South Harwood Street
315 ft·8 sec·South Harwood Street
Use the left lane.
11
Turn right onto Canton Street
0.4 mi·47 sec·Canton Street
12
Take the ramp
0.3 mi·38 sec
Toward I 30 West
13
Keep slight left at fork
0.1 mi·14 sec
Toward I 35E South, I 35E North: Waco, Denton
14
Keep slight left at fork
221 ft·5 sec
Toward I 35E North, I 35E South: Denton, WacoUse the straight / slight right lanes.
15
Keep slight left at fork
0.4 mi·30 sec
Toward I 35E South: WacoUse the left / right lanes.
16
Continue on I 35E
0.5 mi·44 sec·South R L Thornton Freeway
17
Continue on I 35E
89 mi·1 hr 31 min·South R L Thornton Freeway
Exit 426Toward Dallas ZooUse the straight / slight right lanes.
18
Continue on I 35; US 77
6.6 mi·7 min·North Jack Kultgen Expressway
Use the straight / slight right lanes.
19
Continue on I 35
38 mi·39 min·Purple Heart Trail
Use the straight / slight right lanes.
20
Keep slight left at fork onto I 35
56 mi·58 min·I 35
Use the straight / slight right lanes.
21
Keep slight left at fork onto I 35; US 290
50 mi·54 min·Purple Heart Trail
Toward 32nd Street, Dean Keeton StreetUse the slight left lane.
22
Continue on I 35
1.7 mi·1 min·Interstate Highway 35
Use the straight / slight right lanes.
23
Continue on I 35
12 mi·12 min·Purple Heart Trail
Use the straight / slight right lanes.
24
Continue on I 35
6.9 mi·7 min·North Pan Am Expressway
Use the straight / slight right lanes.
25
Take the exit
0.4 mi·55 sec
Exit 166Toward I 410 West, Loop 368 SouthUse the straight / slight right lanes.
26
Keep slight left at fork
0.3 mi·33 sec
Toward I 410 WestUse the straight / slight right lanes.
27
Merge onto I 410
19 mi·22 min·Connally Loop
Use the straight / slight right lanes.
28
Take the exit
1.4 mi·2 min
Exit 6AToward US 90 West: Del RioUse the straight / slight right lanes.
29
Merge onto US 90
3.2 mi·3 min·Cleto Rodriguez Freeway
30
Continue on US 90
6.3 mi·6 min·West US Highway 90
31
Turn left onto County Road 482
1.9 mi·2 min·County Road 482
32
At end of road, turn left onto FM 471
1.9 mi·3 min·FM 471 South
33
Turn left onto South Front Street
0.2 mi·37 sec·South Front Street
34
Turn right
154 ft·6 sec
35
Arrive at destination
Trip Plan
Given the 5h 43m estimated drive time, leaving Plano, TX in the morning should allow you to reach La Coste, TX with plenty of daylight to spare. The total fuel cost is estimated at $48, so ensure your tank is full before departing. With only one recommended stop and a longest stretch of nearly 100 miles, consider planning your break strategically during that longer segment. Keep an eye on your fuel gauge, especially before heading into that 99.6-mile stretch on Purple Heart Trail.
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 157.8 miles from Plano, TX, or about 2h 47m into the drive.
The longest continuous stretch on this route runs about 99.6 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 69 miles or 1h 15m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 157.8 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 35m
Traffic, exits, and arrival timing usually matter more near La Coste, TX than in the middle of the route.
Before You Leave
+
Open the route before leaving Plano, 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 Plano, TX
This is one driving day of about 315.7 miles and 5h 43m.
Your first comfortable stop window is around 69 miles from Plano, 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 99.6 miles.
Where to Stop
Rest stops, refuel points, and overnight suggestions along this route.
Halfway Point
Midpoint
About 157.8 mi from Plano, TX
· 2h 47m into the drive
Place data sourced from public business listings. Hours and availability may vary.
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...
4 mi from route
~10 min detour
Free
near mile 108.9
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...
14 mi from route
~35 min detour
Free
near mile 283
Park data from the National Park Service API. Alerts update every 2 hours.
Fuel & Cost
Regular Gas
$47.70 one way
$95.41 round trip
$3.84/gal25.4 MPG avg111 kg CO2
Fuel Type
$/gal
One Way
Round Trip
midgrade
$4.20
$52.21
$104.43
premium
$4.54
$56.37
$112.73
diesel
$5.61
$69.70
$139.41
Estimated Tolls: $1.40
Central Expressway
(17.5 mi)$1.40
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
$48
Tolls
$1
Meals
$25–$50
Total
$74–$99
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 110.5 kg one way.
Prices: EIA weekly data, 2026-04-13.
Driving Electric?
About $33 in charging
· 1 stop
· 66% less CO2
Vehicle Type
kWh
Stops
DC Fast
Home Charge
Average EV
94.7
1
$33.15
$15.15
Efficient EV
78.9
0
$27.62
$12.63
EV Truck/SUV
126.3
1
$44.20
$20.20
Gas CO2
110 kg
EV CO2
37 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.
Forecast as of Apr 15, 2026
Origin
Plano, TX
Morning
in Plano on Saturday
Local time
11:53 AM
CDT
Current temp
61°F
Unavailable
Live forecast
Destination
La Coste, TX
Morning
in La Coste on Saturday
Local time
11:53 AM
CDT
Current temp
62°F
Unavailable
Live forecast
60°F
Troy, TX
158 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
1 degrees warmer at arrival
A meaningful temperature swing is a good cue to rethink layers, water, and how soon you want to arrive.
Road read
5h 43m 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 Plano, TX to La Coste, TX covers 315.7 miles and takes about 5h 43m without stops. Add 15-30 minutes for a fuel or rest stop on longer drives.
The main roads are Purple Heart Trail, South R L Thornton Freeway, I 35. Expect a mix of highway and local road driving.
This is a comfortable same-day trip.
The midpoint is about 157.8 miles from Plano, TX. Look for rest areas, gas stations, or food options near the halfway mark.
At current regular gas prices, expect to spend about $47.70 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 26 significant decision points across 315.7 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 17.5 miles: Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one; at 19.7 miles: Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one; at 19.7 miles: Highway fork - watch signs carefully. Lane positioning matters here.
Between Plano, TX and La Coste, TX, road signs point toward Downtown, Denton, Waco, Dallas Zoo and Loop 368 South.
How this page is built
Compiled by the Trip.ovh planning team at COD Solutions Oy from open government datasets — OSRM over OpenStreetMap for geometry, EIA for fuel prices, and NPS for national parks. See our methodology for refresh cadence and limitations.
