How far is Houma, LA from Port Allen, LA?
The driving distance from Houma, LA to Port Allen, LA is about 86.3 miles (138.9 km), with a travel time of about 01h 56m by car.
- The straight-line flight distance is about 66.1 miles (106.3 km).
- For a round trip, plan for roughly 03h 52m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 8:00 AM to 10:00 AM CDT.
Reverse, save, or send this route
This route works well as a day trip with time at the destination. Copy the route link, send it to another device, or print a clean version before you head out.
This route works well as a day trip with time at the destination.
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 01h 56m.
A morning start gives you useful time at the destination and keeps the return out of the late evening.
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.
Neighborhood in Manhattan, New York City
Route Weather Snapshot
Check the forecast at both ends before you head out.
Mostly Sunny then Chance Showers And Thunderstorms
Driving Route Map
The map below follows the saved road route between Houma and Port Allen.
Turn-by-Turn Driving Directions
Step-by-step road directions between Houma and Port Allen.
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1
Start on School Street
14 m · 7 sec · School Street
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2
Turn left onto Barrow Street
1245 ft · 46 sec · Barrow Street
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3
At the end of the road, turn left onto Park Avenue
14.6 mi · 25 min · Park Avenue
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4
Continue on Canal Boulevard
1.2 km · 1 min · Canal Boulevard
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5
Enter the roundabout and take exit 3 toward Jackson Street
55 m · 4 sec · Jackson Street
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6
Exit the roundabout onto Jackson Street
1.1 km · 1 min · Jackson Street
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7
Continue on Saint Patrick Bridge
121 m · 9 sec · Saint Patrick Bridge
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8
Turn straight onto Saint Patrick Street
2.6 mi · 4 min · Saint Patrick Street
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9
Turn left
60 m · 7 sec
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10
Turn straight onto North Canal Boulevard
127 m · 7 sec · North Canal Boulevard
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11
Continue on Louisiana 20
8.1 mi · 11 min · Louisiana 20
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12
Keep slight left
6.2 mi · 9 min
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13
Turn right
2.3 mi · 3 min
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14
Turn left
6.8 mi · 9 min
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15
Turn left onto West Airline Highway
8.9 mi · 11 min · West Airline Highway
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16
Take the exit slight right toward I 10 West: Baton Rouge
3104 ft · 59 sec
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17
Merge slight left
31.5 mi · 35 min
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18
Keep slight left
1.9 mi · 3 min
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19
Take the exit slight right toward LA 1 North, LA 1 South: Port Allen, Plaquemine
927 ft · 23 sec
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20
Keep slight right to continue on LA 1 North: Port Allen
1327 ft · 32 sec
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21
Continue on Highway 1 South
563 ft · 13 sec · Highway 1 South
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22
Continue on Dr Martin Luther King Jr Memorial Highway
2104 ft · 44 sec · Dr Martin Luther King Jr Memorial Highway
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23
Turn right onto Court Street
18 m · 4 sec · Court Street
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24
Turn right onto South Alexander Avenue
13 m · 1 sec · South Alexander Avenue
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25
Arrive at your destination
0 m · 1 sec · South Alexander Avenue
Car Route Details
A richer read on the saved driving route between Houma and Port Allen.
Turn-heavy local drive
The route has frequent decision points for its length, so lane choice and turn timing will matter more than cruising speed.
I 10 West
Merge slight left
31.5 mi · 00h 35m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
A comfortable day-trip route
This route works well as a day trip. You can leave in the morning, spend meaningful time at the destination, and still return the same day.
Partly Cloudy leaving Houma and Mostly Sunny then Chance Showers And Thunderstorms near Port Allen.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Houma to Port Allen?
The road trip is about 86.3 miles (138.9 km) and usually takes 01h 56m in normal driving conditions.
Is this a same-day trip or an overnight route?
This route works well as a day trip. You can leave in the morning, spend meaningful time at the destination, and still return the same day.
What is the halfway point on this route?
Gramercy is a useful midpoint, sitting about 43.2 miles from Houma and 43.1 miles from Port Allen.
How much longer is the road route than the straight-line distance?
The direct path is about 66.1 miles (106.3 km), while the road route adds roughly 20.2 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 8:00 AM to 10:00 AM CDT. If you want a more comfortable same-day return, try to leave by 2:38 PM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $11.55 one way or $23.10 round trip. Estimated CO2 is about 27.1 kg one way.
What should you check before leaving?
Before you leave, expect Partly Cloudy around Houma and Mostly Sunny then Chance Showers And Thunderstorms near Port Allen.
Stop Ideas Near Gramercy
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 Gramercy.
Schriever
Hammond
New Orleans Union Passenger Terminal
Baton Rouge, Louisiana
Flight Path Map
This map shows the direct air route between Houma and Port Allen. Straight-line distance: 66.05 mi (106.29 km).
#1 Houma
Only incorporated city and parish seat of Terrebonne Parish, Louisiana, United States
| Population | 32,467 |
| Coordinates | 29.5957700, -90.7195300 |
| Altitude | 3 |
| Country | United States |
#2 Port Allen
City in Louisiana, United States of America
| Population | 4,720 |
| Coordinates | 30.4521400, -91.2101100 |
| Altitude | 8 |
| Country | United States |
End: Port Allen (-91.21011, 30.45214)
Estimated Travel Time
Distance: 139 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 02h 52m |
| 40 mph (64.37 km/h) | 02h 09m |
| 50 mph (80.47 km/h) | 01h 43m |
| 60 mph (96.56 km/h) | 01h 26m |
| 70 mph (112.65 km/h) | 01h 13m |
| 80 mph (129 km/h) | 01h 04m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.79 | $11.55 | $23.10 |
| Mid-grade | $4.26 | $12.99 | $25.98 |
| Premium | $4.63 | $14.11 | $28.21 |
| Diesel | $5.42 | $16.52 | $33.03 |
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 Louisiana · Jul 10, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.