How far is Sulphur, LA from Laplace, LA?
The driving distance from Sulphur, LA to Laplace, LA is about 188.5 miles (303.4 km), with a travel time of about 03h 04m by car.
- The straight-line flight distance is about 173.4 miles (279.1 km).
- For a round trip, plan for roughly 06h 09m 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 04m.
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.
Census-designated place in Louisiana, USA
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 Laplace.
Turn-by-Turn Driving Directions
Step-by-step road directions between Sulphur and Laplace.
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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
160.2 mi · 2 hr 57 min
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4
Take the exit slight right toward LA 3188 South: LaPlace
1948 ft · 48 sec
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5
Continue on Belle Terre Boulevard
2.2 mi · 4 min · Belle Terre Boulevard
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6
Turn left onto West Airline Highway
1.3 mi · 2 min · West Airline Highway
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7
Turn right
13 m · 3 sec
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8
Arrive at your destination
0 m · 1 sec
Car Route Details
A richer read on the saved driving route between Sulphur and Laplace.
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
160 mi · 02h 57m
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 Laplace.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Sulphur to Laplace?
The road trip is about 188.5 miles (303.4 km) and usually takes 03h 04m 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?
Cecilia is a useful midpoint, sitting about 94.1 miles from Sulphur and 94.4 miles from Laplace.
How much longer is the road route than the straight-line distance?
The direct path is about 173.4 miles (279.1 km), while the road route adds roughly 15.1 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 10:50 AM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $25.18 one way or $50.37 round trip. Estimated CO2 is about 59.1 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 Laplace.
Stop Ideas Near Cecilia
Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.
Parks City Hall
Lafayette Consolidated Government
Housing Authority of Lafayette
City of St. Martinville Tourist Information Center
Transit and Meeting Points
Useful pickup, handoff, or rendezvous points close to Cecilia.
Lafayette
New Iberia
Baton Rouge, Louisiana
Flight Path Map
This map shows the direct air route between Sulphur and Laplace. Straight-line distance: 173.41 mi (279.07 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 Laplace
Unincorporated suburban community and census-designated place in Saint John the Baptist Parish, Louisiana, United States of America
| Population | 29,872 |
| Coordinates | 30.0669800, -90.4814700 |
| Altitude | 3 |
| Country | United States |
End: (-90.481509, 30.067001)
Estimated Travel Time
Distance: 303 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 06h 16m |
| 40 mph (64.37 km/h) | 04h 42m |
| 50 mph (80.47 km/h) | 03h 46m |
| 60 mph (96.56 km/h) | 03h 08m |
| 70 mph (112.65 km/h) | 02h 41m |
| 80 mph (129 km/h) | 02h 21m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.79 | $25.18 | $50.37 |
| Mid-grade | $4.26 | $28.32 | $56.64 |
| Premium | $4.63 | $30.76 | $61.51 |
| Diesel | $5.42 | $36.01 | $72.02 |
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.