Origin
Port Lavaca, TX
Morning in Port Lavaca on Wednesday
Local time
7:17 AM
CDT
Current temp
79°F
Unavailable
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Drive Time
6h 16m
Distance
326.1 mi
525 km
Drive Score
10/10
Great drive
Same Day?
Yes, doable
Fuel Cost
$49
one way
EV Charging
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station data
Estimated drive times based on typical traffic patterns. Actual times may vary with weather, construction, and real-time conditions.
Port Lavaca, TX
Wikimedia Commons
Grand Prairie, TX
Wikimedia Commons
The drive from Port Lavaca, TX to Grand Prairie, TX covers 326.1 miles and takes about 6h 16m behind the wheel. This route is realistic as a one-day drive if you keep your stops efficient.
The route leans on US 77, North Travis Avenue, South Main Street for much of the mileage, and the overall profile is mixed drive. The longest uninterrupted segment is about 48.6 miles on US 77. At current regular gas prices, budget about $49.27 one way before food or hotel costs.
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
163.1 miles from Port Lavaca, TX
A natural place for your longest stop of the day , about 3h 12m into the drive .
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The drive from Port Lavaca, TX to Grand Prairie, TX covers 326.1 miles and takes about 6h 16m, using a mix of highways and local roads.
This route mixes highway mileage with some local-road sections near the start or finish. You will hit about 15 points where you need to pay attention to lane position or signs. The trickiest moment comes around 27 miles in near US 87 / North Navarro Street.
Moderate - straightforward overall, but long enough or busy enough to require pacing
This drive requires moderate attention. Across 326.1 miles you will encounter 15 spots where lane choice or exit timing matters. Not difficult for experienced highway drivers, but worth previewing the tricky sections before you go.
Where does it get tricky?
The main spots that need attention: at 27 miles (US 87 / North Navarro Street): Lane positioning matters here; at 176.7 miles (US 77 / North Travis Avenue): Lane positioning matters here; at 263 miles (I 35E): Highway fork - watch signs carefully. Lane positioning matters here.
These are the spots where you need to pay the most attention. Preview them before you drive.
Turn right onto US 87 / North Navarro Street
Lane positioning matters here
Turn right onto US 77 / North Travis Avenue
Lane positioning matters here
Keep slight right at fork onto I 35E toward I 35E: Dallas
Highway fork - watch signs carefully. Lane positioning matters here
Take the exit toward I 20 West: Fort Worth
Exit ramp - move to the correct lane early. Lane positioning matters here
Take the exit toward FM 1382
Exit ramp - move to the correct lane early. Lane positioning matters here
| Road | Distance | Duration |
|---|---|---|
| US 77 | 48.6 mi | 55m |
| North Travis Avenue | 48.6 mi | 55m |
| South Main Street | 48 mi | 57m |
| I 35E | 47.3 mi | 48m |
| Purple Heart Trail | 33 mi | 33m |
| United States Highway 77 | 24.9 mi | 28m |
| US 87 | 20.9 mi | 24m |
| North US Highway 77 | 17.3 mi | 19m |
Step-by-step road directions between Port Lavaca, TX and Grand Prairie, TX.
Start on US 87
Turn straight onto US 87
Turn right onto US 87
Continue on US 77
At end of road, turn right onto US 77; US 90 Alt
Continue on US 77; US 90 Alt
Turn left onto US 77
Continue on US 77
Continue on US 77
Continue on US 77; FM 532
Continue on US 77
Continue on US 77
Continue on US 77
At end of road, turn left onto US 77; US 190; TX 36
Turn right onto US 77
Enter roundabout onto Circle Road
Continue on Circle Road
Turn straight onto South Jack Kultgen Expressway
Take the ramp
Continue on US 77
Merge onto I 35; US 77
Continue on I 35; US 77
Keep slight right at fork onto I 35E
Take the exit
Merge onto I 20
Take the exit
Turn right onto FM 1382
Turn slight right onto Southeast 9th Street
Turn left onto TX 180
Turn right
Arrive at destination
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 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 80 miles or 1h 35m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 163.1 miles or 3h 12m 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 9m
Traffic, exits, and arrival timing usually matter more near Grand Prairie, TX than in the middle of the route.
Open the route before leaving Port Lavaca, 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 Port Lavaca, TX
This is one driving day of about 326.1 miles and 6h 16m.
Rest stops, refuel points, and overnight suggestions along this route.
Halfway Point
Midpoint
About 163.1 mi from Port Lavaca, TX · 3h 12m into the drive
Mid-route town
Meal stop
163 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.
A short stop after about 80 miles helps settle the day before fatigue starts building.
The midpoint is around 163.1 miles from Port Lavaca, TX, which is a good place for a longer meal and fuel stop.
The final approach into Grand Prairie, TX usually feels slower than the middle of the drive, so avoid planning your tightest schedule at the very end.
Try to arrive with enough fuel left to skip an immediate station stop unless you already know the area around Grand Prairie, TX.
These stop ideas are pacing suggestions — the exact town or exit can change with traffic, hotel plans, and fuel range.
Regular Gas
$49.27 one way
$98.55 round trip
| Fuel Type | $/gal | One Way | Round Trip |
|---|---|---|---|
| midgrade | $4.20 | $53.93 | $107.87 |
| premium | $4.54 | $58.22 | $116.45 |
| diesel | $5.61 | $72.00 | $144.00 |
No toll roads detected on this route.
Estimated Trip Cost (one way, 1 person)
Fuel
$49
Meals
$25–$50
Total
$74–$99
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 114.1 kg one way. Prices: EIA weekly data, 2026-04-13.
Driving Electric?
About $34 in charging · 1 stop · 67% less CO2
| Vehicle Type | kWh | Stops | DC Fast | Home Charge |
|---|---|---|---|---|
| Average EV | 97.8 | 1 | $34.24 | $15.65 |
| Efficient EV | 81.5 | 0 | $28.53 | $13.04 |
| EV Truck/SUV | 130.4 | 1 | $45.65 | $20.87 |
Gas CO2
114 kg
EV CO2
38 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.
Current conditions at both ends of the drive.
Origin
Morning in Port Lavaca on Wednesday
Local time
7:17 AM
CDT
Current temp
79°F
Unavailable
Destination
Morning in Grand Prairie on Wednesday
Local time
7:17 AM
CDT
Current temp
60°F
Unavailable
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
Origin and destination are on the same clock, so arrival timing is easier to judge at a glance.
Temperature spread
A meaningful temperature swing is a good cue to rethink layers, water, and how soon you want to arrive.
Road read
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.
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