Trip from Cotulla, TX to Plano, TX

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Compiled and reviewed by the US Trip Planner planning team at COD Solutions Oy · Last reviewed Jul 20, 2026 · Editorial standards

Drive Time

6h 46m

Distance

380.4 mi

612 km

Drive Score

9/10

Great drive

Same Day?

Yes, doable

Fuel Cost

$52

one way

EV Charging

Unknown

Best Time to Leave

Save up to 36 min

4 AM

6h 34m ★

6 AM

6h 46m

8 AM

7h 10m

10 AM

6h 54m

12 PM

6h 52m

3 PM

6h 56m

5 PM

7h 9m

8 PM

6h 39m

Estimated drive times based on typical traffic patterns. Actual times may vary with weather, construction, and real-time conditions.

Best Time

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city in and the county seat of La Salle County, Texas, United States

Cotulla, TX

Wikimedia Commons

city in Collin and Denton counties in Texas, United States

Plano, TX

Wikimedia Commons

Trip Overview

Cotulla, TX to Plano, TX is 380.4 miles and takes about 6h 46m via Purple Heart Trail and I-35E, with a fuel budget near $55 and enough daylight to finish in a day. This drive primarily stays within Texas, moving from the Great Plains region to another part of the Great Plains. You'll spend most of your time on surface roads, making it a more leisurely pace than a pure interstate trip. It's a manageable single-day drive, but be prepared for a substantial amount of time on local routes.

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

190.2 miles from Cotulla, TX

A natural place for your longest stop of the day , about 3h 23m into the drive .

Main Roads

Road	Distance	Duration
Purple Heart Trail	264.3 mi	4h 34m
I 35E	56.2 mi	58m
South Pan Am Expressway	21.5 mi	26m
North Central Expressway	16.6 mi	18m
North Pan Am Expressway	7.4 mi	8m
South Jack Kultgen Expressway	6.6 mi	7m
Interstate Highway 35	1.9 mi	2m
North Main Street	0.8 mi	1m

Longest stretch: Purple Heart Trail — 264.3 mi, about 4h 34m

Traffic on I-35

Hour-of-day weekday pattern from 120 FHWA count stations on your route.

Peak

5 PM

~3,584 veh/hr typical

Quietest

2 AM

~583 veh/hr

Peak-to-quiet ratio

6.1×

busier at peak than in the quiet hours

12a 6a noon 6p 11p

Averaged across 52 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 Cotulla, TX and Plano, TX.

Start on TX 97

49 ft · 5 sec · Tilden Street

Turn right onto I 35 Bus

0.8 mi · 1 min · North Main Street

Turn slight right onto I 35 Bus

0.1 mi · 12 sec · I 35 Bus

Take the ramp

0.2 mi · 30 sec

Merge onto I 35

76 mi · 1 hr 16 min · Purple Heart Trail

Use the straight / slight right lanes.

Continue on I 35

9.3 mi · 11 min · South Pan Am Expressway

Use the straight / slight left lanes.

Keep slight left at fork onto I 35

1.7 mi · 2 min · South Pan Am Expressway

Use the straight / slight right lanes.

Keep slight right at fork onto I 35

10 mi · 13 min · South Pan Am Expressway

Toward I 37, US 281: Upper Level, Corpus Christi, Johnson City Use the straight lane.

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 straight / slight right lanes.

Continue on I 35

12 mi · 12 min · Purple Heart Trail

Use the straight / slight right lanes.

Continue on I 35

1.9 mi · 2 min · Interstate Highway 35

Use the straight / slight right lanes.

Continue on I 35

48 mi · 52 min · Purple Heart Trail

Use the straight / slight right lanes.

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.

Continue on I 35

6.6 mi · 7 min · South Jack Kultgen Expressway

Use the straight / slight right lanes.

Continue on I 35; US 77

33 mi · 33 min · Purple Heart Trail

Use the straight / slight right lanes.

Keep slight right at fork onto I 35E

56 mi · 58 min · I 35E

Toward I 35E: Dallas Use the slight right lane.

Take the exit

0.4 mi · 41 sec

Exit 427A Toward I 30 East: Texarkana, Riverfront Boulevard, Griffin Street Use the slight right lane.

Keep slight left at fork

422 ft · 5 sec

Toward I 35E North, I 30 West: Denton, Fort Worth, Texarkana

Keep slight right at fork

0.4 mi · 32 sec

Toward I 30 East: Texarkana, Convention Center

Keep slight left at fork

385 ft · 6 sec

Toward I 30 East: Texarkana

Continue on I 30; US 67

0.8 mi · 1 min · East R L Thornton Freeway

Take the exit

0.5 mi · 45 sec

Exit 46 Toward I 45, US 75: Houston, McKinney Use the slight right lane.

Keep slight left at fork

0.5 mi · 1 min

Toward US 75 North: McKinney Use the slight left lane.

Keep slight right at fork

0.3 mi · 26 sec

Toward US 75 North: McKinney, Bryan Street East

Merge onto US 75

0.7 mi · 49 sec · Julius Schepps Freeway

Use the straight / slight right lanes.

Continue on US 75

15 mi · 16 min · North Central Expressway

Use the straight / right lanes.

Take the exit

0.4 mi · 52 sec

Exit 28A Toward Plano Parkway, 15th Street Use the straight / slight right lanes.

Turn straight onto North Central Expressway

1.4 mi · 2 min · North Central Expressway

Use the straight / left / right lanes.

Turn right onto East 15th Street

0.6 mi · 1 min · East 15th Street

Use the straight / right lanes.

Arrive at destination

East 15th Street

Trip Plan

For this 6-hour, 46-minute drive, leaving in the morning is recommended to maximize daylight. With a single stop planned, you can easily complete this trip in one day. Keep an eye on your fuel, especially during the 264.3-mile section on the Purple Heart Trail, as services might be more spread out. The majority of this route is on surface roads, so factor in potentially slower speeds and more frequent stops at traffic lights. Your estimated fuel cost is around $55.

Morning Departure

Start early — leave by 6-7 AM to arrive at a reasonable hour.

Evening Departure

This is a long drive — plan for a morning departure or consider splitting it into two days.

You can normally do this drive in one day.

Plan roughly 1 meaningful break for fuel, food, and rest.

The halfway point lands around 190.2 miles from Cotulla, TX, or about 3h 23m into the drive.

The longest continuous stretch on this route runs about 264.3 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 84 miles or 1h 26m in

Use this first pause for coffee, a restroom break, and a quick traffic check ahead.

Halfway reset

Around 190.2 miles or 3h 23m in

This is the best place for your longest stop, a real meal, and a full fuel check.

Final approach

Final hour starts around 5h 39m

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 Cotulla, 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 Cotulla, TX

This is one driving day of about 380.4 miles and 6h 46m.

Your first comfortable stop window is around 84 miles from Cotulla, 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 264.3 miles.

Where to Stop

Rest stops, refuel points, and overnight suggestions along this route.

city in Williamson County, Texas, United States

Mid-route town

Meal stop

Jarrell, TX

190 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

San Antonio, TX

Fuel and coffee

A short stop after about 84 miles helps settle the day before fatigue starts building.

Jarrell, TX

Meal break

The midpoint is around 190.2 miles from Cotulla, TX, which is a good place for a longer meal and fuel stop.

Before the longest stretch

2.4 mi from route

Pilot Travel Center

2.5 mi from route

5 of 19

5 decision points cluster between mile 88.3 and 378.1 — GPS handles the exact turns, but know they're coming. Your lane choice matters more than the turn itself.

88.3 mi into trip | ~1h 31m in | I 35 / South Pan Am Expressway

Keep slight right at fork onto I 35 / South Pan Am Expressway toward I 37, US 281: Upper Level, Corpus Christi, Johnson City

Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one

Use the straight lane. Toward I 37, US 281: Upper Level, Corpus Christ...

98.8 mi into trip | ~1h 44m in | North Pan Am Expressway

Keep slight left at fork onto North Pan Am Expressway toward I 35: Austin

Highway fork - watch signs carefully. Lane positioning matters here

Use the straight / slight right lanes. Toward I 35: Austin

359.2 mi into trip | ~6h 19m 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...

360.9 mi into trip | ~6h 22m 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

378.1 mi into trip | ~6h 41m 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

$52.10 one way

$104.21 round trip

$3.48/gal 25.4 MPG avg 133 kg CO₂

Fuel Type	$/gal	One Way	Round Trip
midgrade	$3.89	$58.20	$116.40
premium	$4.23	$63.28	$126.55
diesel	$4.80	$71.83	$143.65

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

$52

Tolls

Meals

$25–$50

Total

$78–$103

Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.

Estimated CO2 emission: 133.1 kg one way. Prices: EIA weekly data, 2026-07-13.

Driving Electric?

About $40 in charging · 1 stop · 66% less CO₂

Vehicle Type	kWh	Stops	DC Fast	Home Charge
Average EV	114.1	1	$39.94	$18.26
Efficient EV	95.1	1	$33.29	$15.22
EV Truck/SUV	152.2	1	$53.26	$24.35

Gas CO2

133 kg

EV CO2

45 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 Jul 17, 2026

Origin

Cotulla, TX

Evening in Cotulla on Monday

Local time

6:47 PM

CDT

Current temp

77°F

Mostly Cloudy

SE 14 mph 11% chance Live forecast

Flash Flood Warning

Flash Flood Warning issued July 16 at 11:42PM CDT until July 17 at 7:00AM CDT by NWS Austin/San Antonio TX

Flash Flood Warning

Flash Flood Warning issued July 16 at 10:46PM CDT until July 17 at 3:45AM CDT by NWS Austin/San Antonio TX

Destination

Plano, TX

Evening in Plano on Monday

Local time

6:47 PM

CDT

Current temp

75°F

Mostly Cloudy

S 5 mph 11% chance Live forecast

Flash Flood Warning

Flash Flood Warning issued July 16 at 11:42PM CDT until July 17 at 7:00AM CDT by NWS Austin/San Antonio TX

Flash Flood Warning

Flash Flood Warning issued July 16 at 10:46PM CDT until July 17 at 3:45AM CDT by NWS Austin/San Antonio 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

6h 46m on the road

Start early — leave by 6-7 AM to arrive at a reasonable hour.

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...

6 mi from route ~15 min detour Free near mile 275.5

View on nps.gov

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...

9 mi from route ~22 min detour Free near mile 91.8

View on nps.gov

Park data from the National Park Service API. Alerts update every 2 hours.

What kind of drive is this?

This route is mostly surface roads, with only 29% of the drive on highways. You'll experience a long stretch of 264.3 miles on the Purple Heart Trail before transitioning to I-35E. Expect to encounter numerous exits and intersections as you navigate through towns and rural areas. The shift from highway cruising to surface road navigation will be a noticeable change in driving pace.

Only 29% highway — the rest is turn-by-turn surface driving.

30 navigation steps total — most of the decisions cluster near the start and finish.

Longest single stretch: 264.3 mi on Purple Heart Trail.

How Hard Is This Drive?

9/10

Expect a hands-on drive with frequent turns and local roads rather than long highway stretches. This route has several spots where lane changes, forks, or exits need your full attention. The trickiest moment comes around 88.3 miles in near I 35 / South Pan Am Expressway.

Driving Effort 9/10

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 19 significant decision points across 380.4 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 88.3 miles (I 35 / South Pan Am Expressway): Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one; at 98.8 miles (North Pan Am Expressway): Highway fork - watch signs carefully. Lane positioning matters here; at 359.2 miles: Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one.

Elevation Profile

Gently rolling terrain

870 ft 425 ft

Total Climb

1,109 ft

Total Descent

865 ft

Highest Point

870 ft

~190.2 mi in

Elevation Range

445 ft

Towns Mentioned on Route Signs

Based on OSRM destination-sign hints, not a full list of every settlement the road passes.

Between Cotulla, TX and Plano, TX, road signs point toward Corpus Christi, Johnson City, Fort Worth, Texarkana, Convention Center and Mckinney.

Corpus Christi

88.3 mi in | ~1h 31m | via I 35

Johnson City

88.3 mi in | ~1h 31m | via I 35

Fort Worth

359.6 mi in | ~6h 20m

Texarkana

359.6 mi in | ~6h 20m

Convention Center

359.7 mi in | ~6h 20m

Mckinney

360.9 mi in | ~6h 22m

About the Cities

Starting in Cotulla, TX

Full guide →

Founded 1882

Arriving in Plano, TX

Full guide →

Founded 1873

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.

Top landmarks

• Heritage Farmstead Museum — building in Texas, United States
• Plano Station, Texas Electric Railway — historic place in Plano, Collin 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 6h 46m. Total distance: 380.4 miles.

Family Friendly

Moderate complexity with 1 natural rest stops along the way.

Solo Traveler

6h 46m drive, plan rest stops for pacing.

Scenic Drive

Mostly surface roads route profile with national parks nearby.

Frequently Asked Questions

The longest stretch is about 264.3 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.

Yes — we found about 44 rest areas or service plazas within a short detour of the route (from OpenStreetMap). See the Rest Stops tab under Nearby Places for locations and mile markers. Plan to stretch, use the bathroom, and top off fluids every 2–3 hours on longer drives.

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. There are 44 rest areas along the route for bathroom stops.

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 6.8 hours each way, a round trip means 13.5 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.

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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