How far is Grand Prairie, TX from Port Arthur, TX?
The driving distance from Grand Prairie, TX to Port Arthur, TX is about 307.7 miles (495.2 km), with a travel time of about 05h 57m by car.
- The straight-line flight distance is about 267.6 miles (430.6 km).
- For a round trip, plan for roughly 11h 54m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 6:00 AM to 8:00 AM CDT.
Reverse, save, or send this route
This drive is better planned with a longer stop or an overnight stay. Copy the route link, send it to another device, or print a clean version before you head out.
This drive is better planned with a longer stop or an overnight stay.
Flight Distance
Driving Distance
Gas Cost Calculator
Leave and Arrive Planner
Pick a departure time to see your estimated arrival and same-day return window.
Drive time stays fixed at 05h 57m.
An early departure helps you fit a real stop into the day without turning the return into a late-night drive.
You are leaving earlier than the recommended window, which gives you extra margin for breaks and traffic.
Halfway Point
A useful midpoint for breaks, coffee, or meeting in the middle.
Town in Texas, USA
Route Weather Snapshot
Check the forecast at both ends before you head out.
Mostly Cloudy
Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms
Driving Route Map
The map below follows the saved road route between Grand Prairie and Port Arthur.
Turn-by-Turn Driving Directions
Step-by-step road directions between Grand Prairie and Port Arthur.
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1
Start on the route
67 m · 18 sec
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2
Turn right onto Northeast 5th Street
953 ft · 36 sec · Northeast 5th Street
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3
Turn right onto Small Hill Street
1081 ft · 34 sec · Small Hill Street
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4
Turn left onto North Belt Line Road
1 km · 1 min · North Belt Line Road
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5
Turn right
54 m · 7 sec
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6
Turn straight onto East Interstate 30
1874 ft · 32 sec · East Interstate 30
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7
Take the ramp slight left toward I 30 East
918 ft · 16 sec
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8
Merge slight left onto Tom Landry Freeway
10.9 mi · 12 min · Tom Landry Freeway
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9
Continue on East R L Thornton Freeway
1.2 km · 1 min · East R L Thornton Freeway
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10
Take the exit slight right toward I 45, US 75: Houston, McKinney
2421 ft · 46 sec
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11
Keep slight right to continue on I 45 South: Houston
2006 ft · 55 sec
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12
Merge slight left onto Julius Schepps Freeway
1.6 mi · 2 min · Julius Schepps Freeway
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13
Keep slight right to continue on C F Hawn Freeway
68.7 mi · 1 hr 15 min · C F Hawn Freeway
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14
Continue on US Highway 175 West
46 m · 10 sec · US Highway 175 West
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15
Turn left onto West Corsicana Street
2.5 mi · 5 min · West Corsicana Street
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16
Continue on US Highway 175 East
20.8 mi · 22 min · US Highway 175 East
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17
Continue on West Pine Street
2 mi · 3 min · West Pine Street
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18
Continue on US Highway 175
13.3 mi · 15 min · US Highway 175
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19
Continue on Frankston Highway
3163 ft · 58 sec · Frankston Highway
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20
Continue on Alexander Boulevard
937 ft · 22 sec · Alexander Boulevard
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21
At the end of the road, turn right onto North Jackson Street
3.3 mi · 4 min · North Jackson Street
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22
Continue on US Highway 69 North
9.5 mi · 11 min · US Highway 69 North
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23
Continue on North Dickinson Drive
3.4 mi · 4 min · North Dickinson Drive
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24
Continue on US Highway 69 South
9.3 mi · 11 min · US Highway 69 South
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25
Continue on North Marcus Street
1.5 mi · 2 min · North Marcus Street
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26
Continue on US Highway 69 South
11.5 mi · 13 min · US Highway 69 South
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27
Continue on Rusk Street
15.1 mi · 19 min · Rusk Street
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28
Take the exit slight right
555 ft · 15 sec
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29
Continue on Loop 287 Frontage Road
2497 ft · 49 sec · Loop 287 Frontage Road
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30
Continue on Loop 287 Frontage Road
750 ft · 18 sec · Loop 287 Frontage Road
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31
Turn right onto Kurth Drive
2.1 mi · 3 min · Kurth Drive
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32
Turn straight onto North Timberland Drive
1.2 mi · 2 min · North Timberland Drive
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33
Turn left onto South Chestnut Street
3102 ft · 1 min · South Chestnut Street
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34
Turn left onto East Denman Avenue
38.5 mi · 44 min · East Denman Avenue
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35
Continue on North Wheeler Avenue
3 mi · 3 min · North Wheeler Avenue
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36
Continue on US Highway 69 North
6.7 mi · 8 min · US Highway 69 North
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37
Continue on North Magnolia Street
2.9 mi · 3 min · North Magnolia Street
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38
Continue on US Highway 69 South
42.5 mi · 48 min · US Highway 69 South
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39
Merge slight left
9.5 mi · 10 min
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40
Keep slight right to continue on Eastex Freeway
3.1 mi · 4 min · Eastex Freeway
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41
Take the exit slight right toward US 69 South, US 96 South, US 287 South: Port Arthur
15.9 mi · 18 min
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42
Take the exit slight right toward TX 73 West: Winnie
1775 ft · 43 sec
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43
Merge slight left
1 km · 44 sec
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44
Turn slight right onto H O Mills Boulevard
1946 ft · 46 sec · H O Mills Boulevard
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45
Turn left onto Savannah Avenue
2 mi · 3 min · Savannah Avenue
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46
Turn right onto 17th Street
113 m · 16 sec · 17th Street
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47
Turn left onto Augusta Avenue
49 m · 5 sec · Augusta Avenue
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48
Arrive at your destination
0 m · 1 sec · Augusta Avenue
Car Route Details
A richer read on the saved driving route between Grand Prairie and Port Arthur.
Long-distance drive
This route is long enough that fuel, rest stops, weather, and timing matter more than any single maneuver.
C F Hawn Freeway
Keep slight right to continue on C F Hawn Freeway
68.7 mi · 01h 15m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
A longer out-and-back drive
This is still possible in one day, but it becomes a long driving day. Leaving early and planning your stop window matters more here.
Mostly Cloudy leaving Grand Prairie and Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms near Port Arthur.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Grand Prairie to Port Arthur?
The road trip is about 307.7 miles (495.2 km) and usually takes 05h 57m in normal driving conditions.
Is this a same-day trip or an overnight route?
This is still possible in one day, but it becomes a long driving day. Leaving early and planning your stop window matters more here.
What is the halfway point on this route?
Alto is a useful midpoint, sitting about 153.9 miles from Grand Prairie and 153.8 miles from Port Arthur.
How much longer is the road route than the straight-line distance?
The direct path is about 267.6 miles (430.6 km), while the road route adds roughly 40.1 extra miles because roads do not follow the straight air line.
When is the best time to leave for this route?
A good departure window is usually 6:00 AM to 8:00 AM CDT. If you want a more comfortable same-day return, try to leave by 5:06 AM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $41.04 one way or $82.08 round trip. Estimated CO2 is about 96.5 kg one way.
What should you check before leaving?
Before you leave, expect Mostly Cloudy around Grand Prairie and Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms near Port Arthur.
Stop Ideas Near Alto
Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.
Transit and Meeting Points
Useful pickup, handoff, or rendezvous points close to Alto.
Nacogdoches, Texas
Tyler, TX
Longview
Mineola
Flight Path Map
This map shows the direct air route between Grand Prairie and Port Arthur. Straight-line distance: 267.55 mi (430.58 km).
#1 Grand Prairie
The ninth most populous city in Texas.
| Population | 195,272 |
| Coordinates | 32.7459600, -96.9977800 |
| Altitude | 157 |
| Country | United States |
#2 Port Arthur
The most populous city in Jefferson County, Texas.
| Population | 53,921 |
| Coordinates | 29.8851900, -93.9423300 |
| Altitude | 2 |
| Country | United States |
End: Port Arthur (-93.94233, 29.88519)
Estimated Travel Time
Distance: 495 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 10h 15m |
| 40 mph (64.37 km/h) | 07h 41m |
| 50 mph (80.47 km/h) | 06h 09m |
| 60 mph (96.56 km/h) | 05h 07m |
| 70 mph (112.65 km/h) | 04h 23m |
| 80 mph (129 km/h) | 03h 50m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.78 | $41.04 | $82.08 |
| Mid-grade | $4.25 | $46.18 | $92.35 |
| Premium | $4.59 | $49.86 | $99.72 |
| Diesel | $3.99 | $43.36 | $86.73 |
Assumes 8.3 L/100 km (about 28.3 MPG). CO2 is an estimate and varies by vehicle, fuel blend, traffic, and terrain.
Prices in Texas · Apr 23, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.