How far is Baton Rouge, LA from Port Sulphur, LA?
The driving distance from Baton Rouge, LA to Port Sulphur, LA is about 128.1 miles (206.2 km), with a travel time of about 02h 37m by car.
- The straight-line flight distance is about 111.4 miles (179.3 km).
- For a round trip, plan for roughly 05h 14m 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 02h 37m.
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.
The most populous city in Jefferson Parish, Louisiana.
Route Weather Snapshot
Check the forecast at both ends before you head out.
Mostly Sunny
Mostly Clear
Driving Route Map
The map below follows the saved road route between Baton Rouge and Port Sulphur.
Turn-by-Turn Driving Directions
Step-by-step road directions between Baton Rouge and Port Sulphur.
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1
Start on Government Street
2604 ft · 1 min · Government Street
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2
Turn right onto South 10th Street
985 ft · 17 sec · South 10th Street
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3
Take the ramp slight left toward I 10 East
1277 ft · 31 sec
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4
Merge slight left onto Martin Luther King Jr Memorial Freeway
963 ft · 12 sec · Martin Luther King Jr Memorial Freeway
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5
Merge slight right
74.7 mi · 1 hr 25 min
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6
Keep slight right to continue on Pontchartrain Expressway
3.5 mi · 4 min · Pontchartrain Expressway
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7
Keep slight left to continue on Pontchartrain Expressway
2.4 mi · 3 min · Pontchartrain Expressway
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8
Continue on Crescent City Connection
1.1 km · 1 min · Crescent City Connection
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9
Continue on Westbank Expressway
2.7 mi · 4 min · Westbank Expressway
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10
Take the exit slight right toward LA 23 South, LA 18 West: Lafayette Street
1312 ft · 32 sec
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11
Turn straight onto Westbank Expressway
90 m · 13 sec · Westbank Expressway
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12
Turn left onto Lafayette Street
2063 ft · 29 sec · Lafayette Street
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13
Continue on Belle Chasse Highway
42.3 mi · 58 min · Belle Chasse Highway
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14
Arrive at your destination
0 m · 1 sec
Car Route Details
A richer read on the saved driving route between Baton Rouge and Port Sulphur.
Highway-focused drive
Most of the mileage stays on named highways, so the important moments are ramps, exits, merges, and the final local approach.
Martin Luther King Jr Memorial Freeway
Merge slight right
74.7 mi · 01h 25m
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.
Mostly Sunny leaving Baton Rouge and Mostly Clear near Port Sulphur.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Baton Rouge to Port Sulphur?
The road trip is about 128.1 miles (206.2 km) and usually takes 02h 37m 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?
Kenner is a useful midpoint, sitting about 64.1 miles from Baton Rouge and 64.1 miles from Port Sulphur.
How much longer is the road route than the straight-line distance?
The direct path is about 111.4 miles (179.3 km), while the road route adds roughly 16.7 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 1:16 PM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $17.12 one way or $34.23 round trip. Estimated CO2 is about 40.2 kg one way.
What should you check before leaving?
Before you leave, expect Mostly Sunny around Baton Rouge and Mostly Clear near Port Sulphur.
Stop Ideas Near Kenner
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 Kenner.
New Orleans Union Passenger Terminal
Slidell
Hammond
Schriever
Flight Path Map
This map shows the direct air route between Baton Rouge and Port Sulphur. Straight-line distance: 111.44 mi (179.34 km).
#1 Baton Rouge
The capital of Louisiana.
| Population | 219,052 |
| Coordinates | 30.4433200, -91.1874700 |
| Altitude | 14 |
| Country | United States |
#2 Port Sulphur
City in Louisiana, United States of America
| Population | 1,760 |
| Coordinates | 29.4804900, -89.6939500 |
| Altitude | 1 |
| Country | United States |
End: Port Sulphur (-89.69395, 29.48049)
Estimated Travel Time
Distance: 206 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 04h 16m |
| 40 mph (64.37 km/h) | 03h 12m |
| 50 mph (80.47 km/h) | 02h 33m |
| 60 mph (96.56 km/h) | 02h 08m |
| 70 mph (112.65 km/h) | 01h 49m |
| 80 mph (129 km/h) | 01h 35m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.79 | $17.12 | $34.23 |
| Mid-grade | $4.26 | $19.25 | $38.50 |
| Premium | $4.63 | $20.90 | $41.81 |
| Diesel | $5.42 | $24.48 | $48.95 |
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 · Apr 16, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.