La Coste to Plano is 316.3 miles and takes about 5h 43m via Purple Heart Trail and I 35E, with a fuel budget near $48 and enough daylight to finish in a day. This drive spans the Great Plains region of Texas, offering a straightforward path north. It's a solid choice for a single-day journey, especially if you're looking for an efficient way to cover ground. You'll encounter a mix of driving conditions, so be prepared for varying road types as you make your way to Plano.
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
158.1 miles from La Coste, TX
A natural place for your longest stop of the day
, about 2h 55m into the drive
.
Step-by-step road directions between La Coste, TX and Plano, TX.
1
Start on this road
154 ft·11 sec·this road
2
Turn left onto South Front Street
0.2 mi·37 sec·South Front Street
3
Turn right onto FM 471
1.9 mi·3 min·Castro Avenue
4
Turn right onto County Road 482
1.8 mi·2 min·County Road 482
5
Turn right onto US 90
6.3 mi·6 min·US Highway 90 East
6
Continue on US 90
3.3 mi·3 min·Cleto Rodriguez Freeway
Use the straight / slight right lanes.
7
Take the exit
1.3 mi·2 min
Toward I 410 North, TX 16 NorthUse the straight / slight right lanes.
8
Merge onto I 410; TX 16
20 mi·22 min·Connally Loop
Use the straight / slight right lanes.
9
Keep slight left at fork
0.3 mi·41 sec
Toward I 35 North: Austin
10
Merge onto I 35
6.8 mi·7 min·North Pan Am Expressway
Use the straight / slight right lanes.
11
Continue on I 35
12 mi·12 min·Purple Heart Trail
Use the straight / slight right lanes.
12
Continue on I 35
1.9 mi·2 min·Interstate Highway 35
Use the straight / slight right lanes.
13
Continue on I 35
48 mi·52 min·Purple Heart Trail
Use the straight / slight right lanes.
14
Keep slight right at fork onto I 35; US 290
96 mi·1 hr 40 min·Purple Heart Trail
Use the straight / slight right lanes.
15
Continue on I 35
6.6 mi·7 min·South Jack Kultgen Expressway
Use the straight / slight right lanes.
16
Continue on I 35; US 77
33 mi·33 min·Purple Heart Trail
Use the straight / slight right lanes.
17
Keep slight right at fork onto I 35E
56 mi·58 min·I 35E
Toward I 35E: DallasUse the slight right lane.
18
Take the exit
0.4 mi·41 sec
Exit 427AToward I 30 East: Texarkana, Riverfront Boulevard, Griffin StreetUse 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
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 46Toward I 45, US 75: Houston, McKinneyUse the slight right lane.
24
Keep slight left at fork
0.5 mi·1 min
Toward US 75 North: McKinneyUse the slight left lane.
25
Keep slight right at fork
0.3 mi·26 sec
Toward US 75 North: McKinney, Bryan Street East
26
Merge onto US 75
0.7 mi·49 sec·Julius Schepps Freeway
Use the straight / slight right lanes.
27
Continue on US 75
15 mi·16 min·North Central Expressway
Use the straight / right lanes.
28
Take the exit
0.4 mi·52 sec
Exit 28AToward Plano Parkway, 15th StreetUse the straight / slight right lanes.
29
Turn straight onto North Central Expressway
1.4 mi·2 min·North Central Expressway
Use the straight / left / right lanes.
30
Turn right onto East 15th Street
0.6 mi·1 min·East 15th Street
Use the straight / right lanes.
31
Arrive at destination
East 15th Street
Trip Plan
Given the 5h 43m estimated duration, departing from La Coste in the morning will allow ample time to reach Plano before evening. With only one recommended stop, you have flexibility in pacing your journey. Keep an eye on your fuel levels, especially before embarking on the longest stretch of 188.3 miles on Purple Heart Trail, as services might be less frequent. Planning your fuel stops strategically will ensure a smooth and uninterrupted drive.
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 158.1 miles from La Coste, TX, or about 2h 55m 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 70 miles or 1h 21m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 158.1 miles or 2h 55m 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 40m
Traffic, exits, and arrival timing usually matter more near Plano, TX than in the middle of the route.
Before You Leave
+
Open the route before leaving La Coste, 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 La Coste, TX
This is one driving day of about 316.3 miles and 5h 43m.
Your first comfortable stop window is around 70 miles from La Coste, 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.
Place data sourced from public business listings. Hours and availability may vary.
Heads-up: tricky spots
5 of 21
5 decision points cluster between mile 13.7 and 313.9 — GPS handles the exact turns, but know they're coming. Your lane choice matters more than the turn itself.
7
13.7 mi into trip|~16m in
Take the exit toward I 410 North, TX 16 North
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.
Toward I 410 North, TX 16 North
7
238.8 mi into trip|~4h 19m 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
295 mi into trip|~5h 17m 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
296.7 mi into trip|~5h 19m 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
313.9 mi into trip|~5h 39m in
Take the exit toward Plano Parkway, 15th Street
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 28A
Toward Plano Parkway, 15th Street
Fuel & Cost
Regular Gas
$47.79 one way
$95.59 round trip
$3.84/gal25.4 MPG avg111 kg CO2
Fuel Type
$/gal
One Way
Round Trip
midgrade
$4.20
$52.31
$104.63
premium
$4.54
$56.47
$112.95
diesel
$5.61
$69.84
$139.67
Estimated Tolls: $1.32
Central Expressway
(16.6 mi)$1.32
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: 110.7 kg one way.
Prices: EIA weekly data, 2026-04-13.
Driving Electric?
About $33 in charging
· 1 stop
· 67% less CO2
Vehicle Type
kWh
Stops
DC Fast
Home Charge
Average EV
94.9
1
$33.21
$15.18
Efficient EV
79.1
0
$27.68
$12.65
EV Truck/SUV
126.5
1
$44.28
$20.24
Gas CO2
111 kg
EV CO2
37 kg (67% 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 20, 2026
Origin
La Coste, TX
Late night
in La Coste on Tuesday
Local time
5:34 AM
CDT
Current temp
53°F
Chance Showers And Thunderstorms
NNE 5 mph74% chanceLive forecast
Rip Current Statement
Rip Current Statement issued April 20 at 1:00AM CDT until April 21 at 7:00AM CDT by NWS Brownsville TX
Destination
Plano, TX
Late night
in Plano on Tuesday
Local time
5:34 AM
CDT
Current temp
51°F
Partly Cloudy
ESE 0 to 5 mph0% chanceLive forecast
Rip Current Statement
Rip Current Statement issued April 20 at 1:00AM CDT until April 21 at 7:00AM CDT by NWS Brownsville TX
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
2 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 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.
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 207.2
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 32.7
Park data from the National Park Service API. Alerts update every 2 hours.
More Details
What kind of drive is this?
This trip features a mixed drive profile, with 31% of the journey on highways. You'll experience a significant stretch of 188.3 miles primarily on the Purple Heart Trail, which offers a different feel than the interstate. The route then transitions to I 35E, a more typical highway experience. Expect the road character to evolve from potentially more local roads to faster-paced interstate driving as you progress toward your destination.
31% highway, the rest on surface roads — varied driving throughout.
31 navigation steps total — most of the decisions cluster near the start and finish.
Longest single stretch: 188.3 mi on Purple Heart Trail.
How Hard Is This Drive?
9/10
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 13.7 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 21 significant decision points across 316.3 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 13.7 miles: Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one; at 238.8 miles (I 35E): Highway fork - watch signs carefully. Lane positioning matters here; at 295 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 La Coste, TX and Plano, TX, road signs point toward Fort Worth, Texarkana, Convention Center, Mckinney and Bryan Street East.
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: 316.3 miles.
Family Friendly
Moderate complexity with 1 natural rest stops along the way.
Solo Traveler
5h 43m drive, comfortable solo distance.
Scenic Drive
Mixed highway & surface route profile with national parks nearby.
Frequently Asked Questions
The longest stretch is about 188.3 miles on Purple Heart Trail. The full list of main roads is in the Roads section above.
Expect about $1.32 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.
We did not find dedicated rest areas on this route. For a drive this long, plan bathroom and stretch breaks around gas stations, fast-food stops, or small-town downtowns — check the Nearby Places section for options.
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 Plano, 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. Plan at least 1 meaningful breaks. Dedicated rest areas are limited, so plan gas or food stops as your bathroom breaks.
The main spots that need attention: at 13.7 miles: Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one; at 238.8 miles (I 35E): Highway fork - watch signs carefully. Lane positioning matters here; at 295 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 and San Antonio Missions National Historical Park. See the National Parks section for detour distances and tips on detours.
Not recommended in a single day. At 5.7 hours each way, a round trip means 11.5 hours of driving — that is an unsafe level of fatigue for most drivers. Plan at least one night at Plano, TX before the return drive.
