How far is Sulphur, LA from Marrero, LA?
The driving distance from Sulphur, LA to Marrero, LA is about 216.7 miles (348.8 km), with a travel time of about 03h 39m by car.
- The straight-line flight distance is about 197.3 miles (317.6 km).
- For a round trip, plan for roughly 07h 18m 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 03h 39m.
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.
Human settlement in Louisiana, United States of America
Route Weather Snapshot
Check the forecast at both ends before you head out.
Chance Showers And Thunderstorms
Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms
Driving Route Map
The map below follows the saved road route between Sulphur and Marrero.
Turn-by-Turn Driving Directions
Step-by-step road directions between Sulphur and Marrero.
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1
Start on East Napoleon Street
6 mi · 9 min · East Napoleon Street
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2
Take the ramp straight
18.6 mi · 22 min
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3
Continue straight
185 mi · 3 hr 27 min
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4
Keep slight right to continue on Pontchartrain Expressway
3.5 mi · 4 min · Pontchartrain Expressway
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5
Keep slight left to continue on Pontchartrain Expressway
2.4 mi · 3 min · Pontchartrain Expressway
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6
Continue on Crescent City Connection
1.1 km · 1 min · Crescent City Connection
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7
Continue on Westbank Expressway
5.4 mi · 7 min · Westbank Expressway
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8
Take the exit slight right toward LA 45: Barataria Boulevard
1395 ft · 30 sec
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9
Turn straight onto Westbank Expressway
1403 ft · 36 sec · Westbank Expressway
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10
Turn right onto Barataria Boulevard
1612 ft · 39 sec · Barataria Boulevard
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11
Arrive at your destination
0 m · 1 sec · Barataria Boulevard
Car Route Details
A richer read on the saved driving route between Sulphur and Marrero.
Straightforward drive
The saved road route has a manageable number of maneuvers and should be easy to follow with normal attention to signs.
East Napoleon Street
Continue straight
185 mi · 03h 27m
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.
Chance Showers And Thunderstorms leaving Sulphur and Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms near Marrero.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Sulphur to Marrero?
The road trip is about 216.7 miles (348.8 km) and usually takes 03h 39m 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?
Grosse Tete is a useful midpoint, sitting about 111 miles from Sulphur and 105.7 miles from Marrero.
How much longer is the road route than the straight-line distance?
The direct path is about 197.3 miles (317.6 km), while the road route adds roughly 19.4 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 9:42 AM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $28.97 one way or $57.94 round trip. Estimated CO2 is about 68 kg one way.
What should you check before leaving?
Before you leave, expect Chance Showers And Thunderstorms around Sulphur and Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms near Marrero.
Stop Ideas Near Grosse Tete
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 Grosse Tete.
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Flight Path Map
This map shows the direct air route between Sulphur and Marrero. Straight-line distance: 197.32 mi (317.56 km).
#1 Sulphur
Suburb city of Lake Charles, located in Calcasieu Parish, Louisiana, United States
| Population | 20,120 |
| Coordinates | 30.2365900, -93.3773800 |
| Altitude | 5 |
| Country | United States |
#2 Marrero
CDP in Jefferson Parish, Louisiana
| Population | 33,141 |
| Coordinates | 29.8993700, -90.1003500 |
| Altitude | 1 |
| Country | United States |
End: Barataria Boulevard (-90.100445, 29.899359)
Estimated Travel Time
Distance: 349 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 07h 13m |
| 40 mph (64.37 km/h) | 05h 25m |
| 50 mph (80.47 km/h) | 04h 20m |
| 60 mph (96.56 km/h) | 03h 36m |
| 70 mph (112.65 km/h) | 03h 05m |
| 80 mph (129 km/h) | 02h 42m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.79 | $28.97 | $57.94 |
| Mid-grade | $4.26 | $32.58 | $65.16 |
| Premium | $4.63 | $35.38 | $70.76 |
| Diesel | $5.42 | $41.42 | $82.85 |
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 22, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.