The drive from Corpus Christi, TX to Mount Vernon, TX covers 492.6 miles and takes about 8h 51m behind the wheel.
It usually feels better as a 2-day road trip than as one long push.
The route leans on East R L Thornton Freeway, Purple Heart Trail, Pickle Parkway for much of the mileage,
and the overall profile is highway-focused drive.
The longest uninterrupted segment is about 100.8 miles on East R L Thornton Freeway.
At current regular gas prices, budget about $74.43 one way before food or hotel costs.
Trip Pace
Best split across 2 days
Treat the return leg as its own travel day rather than an afterthought.
Break Rhythm
2 planned breaks
Plan on a short reset every 3 to 4 hours to stay fresh behind the wheel.
Midpoint
246.3 miles from Corpus Christi, TX
A natural place for your longest stop of the day
, about 4h 32m into the drive
.
Drive Character
This is a 8h 51m highway drive covering 492.6 miles, with most of the trip on East R L Thornton Freeway and Purple Heart Trail. The longest continuous stretch is about 100.8 miles on East R L Thornton Freeway.
Most of the miles stay on highways, which makes pacing and fuel planning easier than turn-by-turn city driving.
There are about 40 navigation steps in the underlying route data, so the final approach matters more than the middle miles.
East R L Thornton Freeway is the longest continuous segment at about 100.8 miles.
How Hard Is This Drive?
This is a straightforward highway drive that stays mostly on East R L Thornton Freeway and Purple Heart Trail. This route has several spots where lane changes, forks, or exits need your full attention. The trickiest moment comes around 0.2 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 22 significant decision points across 492.6 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 0.2 miles: Exit ramp - move to the correct lane early. Lane positioning matters here; at 226.9 miles: Highway fork - watch signs carefully. Lane positioning matters here; at 331.7 miles (I 35E): Highway fork - watch signs carefully. Lane positioning matters here.
Critical Maneuvers
5 of 22 key points
These are the spots where you need to pay the most attention. Preview them before you drive.
6
0.2 mi into trip|~0m in
Take the exit
Exit ramp - move to the correct lane early. Lane positioning matters here
Use the straight / slight right lanes.
7
226.9 mi into trip|~4h 12m in
Keep slight left at fork toward I 35 North: Waco
Highway fork - watch signs carefully. Lane positioning matters here
Use the slight left / slight right lanes.
Toward I 35 North: Waco
7
331.7 mi into trip|~6h 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
387.9 mi into trip|~6h 58m 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...
7
396.3 mi into trip|~7h 9m in|I 30; US 67 / East R L Thornton Freeway
Keep slight left at fork onto I 30; US 67 / East R L Thornton Freeway toward I 30 East: Texarkana
Highway fork - watch signs carefully. Lane positioning matters here
Use the straight / right lanes.
Toward I 30 East: Texarkana
Towns Mentioned on Route Signs
Based on OSRM destination-sign hints, not a full list of every settlement the road passes.
Between Corpus Christi, TX and Mount Vernon, TX, road signs point toward Waco, Fort Worth, Texarkana and Convention Center.
Waco
168 mi in|~3h 16m
Fort Worth
388.3 mi in|~6h 59m
Texarkana
388.3 mi in|~6h 59m
Convention Center
388.3 mi in|~6h 59m
Main Roads
Road
Distance
Duration
East R L Thornton Freeway
100.8 mi
1h 45m
Purple Heart Trail
97.7 mi
1h 39m
Pickle Parkway
58.5 mi
54m
I 35E
56.2 mi
58m
US Highway 181 South
40.2 mi
45m
State Highway 80 North
30.8 mi
35m
State Highway 80
23.6 mi
25m
US Highway 181
16 mi
18m
Longest stretch:
East R L Thornton Freeway
— 100.8 mi, about 1h 45m
Turn-by-Turn Driving Directions
Step-by-step road directions between Corpus Christi, TX and Mount Vernon, TX.
1
Start on I 37
0.2 mi·21 sec·I 37
2
Take the exit
0.2 mi·29 sec
Use the straight / slight right lanes.
3
Keep slight left at fork
0.3 mi·39 sec
4
Turn right onto North Brownlee Boulevard
122 ft·2 sec·North Brownlee Boulevard
5
Take the ramp
0.1 mi·16 sec
6
Merge onto US 181; TX 35
10 mi·11 min·New Harbor Bridge
7
Keep slight right at fork onto US 181
1.0 mi·1 min·US 181
8
Keep slight left at fork onto US 181
14 mi·15 min·US 181
9
Continue on TX 89
4.1 mi·4 min·State Highway 89
10
Continue on US 181
16 mi·18 min·US Highway 181
11
Continue on US 181
0.8 mi·55 sec·South 8th Street
12
Continue on US 181
40 mi·45 min·US Highway 181 South
13
Continue on US 181
1.2 mi·1 min·South Sunset Strip Drive
14
Turn right onto TX 72; TX 239
0.8 mi·1 min·West Main Street
15
Keep slight left at fork onto TX 72; TX 239
233 ft·3 sec·East Main Street
16
Continue on FM 792
8.4 mi·10 min·Helena Road
17
Turn straight onto TX 80
24 mi·25 min·State Highway 80
18
Continue on TX 80
1.0 mi·2 min·South Nixon Avenue
19
Continue on TX 80; TX 97
31 mi·35 min·State Highway 80 North
20
Continue on US 183
10 mi·11 min·US 183
21
Continue on US 183
4.9 mi·8 min·South Colorado Street
22
Continue on US 183
0.2 mi·16 sec·United States Highway 183
23
Keep slight left at fork
0.5 mi·35 sec
Toward TX 130 Toll North: Austin, Waco
24
Merge onto TX 130 Toll
59 mi·54 min·Pickle Parkway
Use the straight / slight right lanes.
25
Keep slight left at fork
0.4 mi·49 sec
Toward I 35 North: WacoUse the slight left / slight right lanes.
26
Merge onto I 35
65 mi·1 hr 6 min·Purple Heart Trail
Use the straight / slight right lanes.
27
Continue on I 35
6.6 mi·7 min·South Jack Kultgen Expressway
Use the straight / slight right lanes.
28
Continue on I 35; US 77
33 mi·33 min·Purple Heart Trail
Use the straight / slight right lanes.
29
Keep slight right at fork onto I 35E
56 mi·58 min·I 35E
Toward I 35E: DallasUse the slight right lane.
30
Take the exit
0.4 mi·41 sec
Exit 427AToward I 30 East: Texarkana, Riverfront Boulevard, Griffin StreetUse the slight right lane.
31
Keep slight left at fork
422 ft·5 sec
Toward I 35E North, I 30 West: Denton, Fort Worth, Texarkana
32
Keep slight right at fork
0.4 mi·32 sec
Toward I 30 East: Texarkana, Convention Center
33
Keep slight left at fork
385 ft·6 sec
Toward I 30 East: Texarkana
34
Continue on I 30; US 67
7.5 mi·9 min·East R L Thornton Freeway
Use the straight / slight right lanes.
35
Keep slight left at fork onto I 30; US 67
93 mi·1 hr 36 min·East R L Thornton Freeway
Toward I 30 East: TexarkanaUse the straight / right lanes.
36
Take the exit
0.2 mi·26 sec
Toward SH 37: Clarksville, Winnsboro
37
Turn straight onto West Interstate 30
0.3 mi·44 sec·West Interstate 30
38
Turn left onto TX 37
2.0 mi·3 min·State Highway 37 South
39
Turn right onto US 67; TX 37 Bus
0.6 mi·1 min·West Main Street
40
Arrive at destination
US 67
Trip Plan
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.
This drive is better paced as a 2-day trip.
Plan roughly 2 meaningful breaks for fuel, food, and rest.
The halfway point lands around 246.3 miles from Corpus Christi, TX, or about 4h 32m into the drive.
The longest continuous stretch on this route runs about 100.8 miles.
Consider an overnight stop or starting very early.
Departure
Before you leave
Start with fuel, water, and navigation already sorted so the first hour feels easy.
First stop
Around 108 miles or 2h 4m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 246.3 miles or 4h 32m in
This is the best place for your longest stop, a real meal, and a full fuel check.
Overnight split
Day 1 wrap after about 246.3 miles or 4h 32m
Stop before fatigue turns the last few hours into a grind. You want day two to start fresh, not just resumed.
Final approach
Final hour starts around 7h 46m
Traffic, exits, and arrival timing usually matter more near Mount Vernon, TX than in the middle of the route.
Before You Leave
+
Open the route before leaving Corpus Christi, 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.
+
Pick one backup stop option before the midpoint in case traffic changes your pacing.
+
Treat this as a 2-day road trip and book the overnight stop before the busiest arrival window.
Day 1
Settle into the route from Corpus Christi, TX
Aim for roughly 246 miles and 4.4 hours of wheel time on this day.
Day 2
Finish the approach into Mount Vernon, TX
Aim for roughly 246 miles and 4.4 hours of wheel time on this day.
Your first comfortable stop window is around 108 miles from Corpus Christi, TX.
This route usually feels better as a 2-day drive than as one long push.
Plan about 2 real breaks rather than only quick fuel stops.
The longest stretch is on East R L Thornton Freeway for about 100.8 miles.
Where to Stop
Rest stops, refuel points, and overnight suggestions along this route.
Halfway Point
Midpoint
About 246.3 mi from Corpus Christi, TX
· 4h 32m 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...
7 mi from route
~18 min detour
Free
near mile 305.8
Park data from the National Park Service API. Alerts update every 2 hours.
Fuel & Cost
Regular Gas
$74.43 one way
$148.87 round trip
$3.84/gal25.4 MPG avg172 kg CO2
Fuel Type
$/gal
One Way
Round Trip
midgrade
$4.20
$81.47
$162.95
premium
$4.54
$87.95
$175.90
diesel
$5.61
$108.76
$217.52
No toll roads detected on this route.
Estimated Trip Cost (one way, 1 person)
Fuel
$74
Hotel (1n)
$80–$140
Meals
$50–$100
Total
$204–$314
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 172.4 kg one way.
Prices: EIA weekly data, 2026-04-13.
Driving Electric?
About $52 in charging
· 1 stop
· 66% less CO2
Vehicle Type
kWh
Stops
DC Fast
Home Charge
Average EV
147.8
1
$51.72
$23.64
Efficient EV
123.2
1
$43.10
$19.70
EV Truck/SUV
197
2
$68.96
$31.53
Gas CO2
172 kg
EV CO2
58 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
Corpus Christi, TX
Night
in Corpus Christi on Thursday
Local time
9:39 PM
CDT
Current temp
72°F
Unavailable
Live forecast
Destination
Mount Vernon, TX
Night
in Mount Vernon on Thursday
Local time
9:39 PM
CDT
Current temp
57°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.
For long drives, weather on day two can matter just as much as conditions at departure, so check the whole travel window rather than only the first day.
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
15 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
8h 51m on the road
This is long enough that the arrival forecast matters almost as much as departure conditions. Recheck both ends before you roll.
Weather data from the National Weather Service. Conditions may change; check closer to your travel date.
Frequently Asked Questions
The drive from Corpus Christi, TX to Mount Vernon, TX covers 492.6 miles and takes about 8h 51m without stops. Add 15-30 minutes for a fuel or rest stop on longer drives.
The main roads are East R L Thornton Freeway, Purple Heart Trail, Pickle Parkway. Most of the drive stays on highways, so watch for ramps and exits.
Consider an overnight stop or starting very early.
Yes. This route is usually more comfortable as a 2-day drive. A sensible stopping point is after roughly 246 miles on day one.
The midpoint is about 246.3 miles from Corpus Christi, TX. Look for rest areas, gas stations, or food options near the halfway mark.
At current regular gas prices, expect to spend about $74.43 one way. This estimate uses 25.4 MPG — your actual cost will vary with your vehicle's fuel efficiency and current gas prices.
Start early — leave by 6-7 AM to arrive at a reasonable hour. This is a long drive — plan for a morning departure or consider splitting it into two days.
Plan about 2 meaningful breaks 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 22 significant decision points across 492.6 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 0.2 miles: Exit ramp - move to the correct lane early. Lane positioning matters here; at 226.9 miles: Highway fork - watch signs carefully. Lane positioning matters here; at 331.7 miles (I 35E): Highway fork - watch signs carefully. Lane positioning matters here.
Between Corpus Christi, TX and Mount Vernon, TX, road signs point toward Waco, Fort Worth, Texarkana and Convention Center.
