How far is Lafayette, LA from Slidell, LA?
The driving distance from Lafayette, LA to Slidell, LA is about 145.2 miles (233.7 km), with a travel time of about 02h 18m by car.
- The straight-line flight distance is about 133.7 miles (215.1 km).
- For a round trip, plan for roughly 04h 37m 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 18m.
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.
City in Livingston Parish, Louisiana, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Showers And Thunderstorms Likely then Chance Showers And Thunderstorms
Showers And Thunderstorms then Chance Showers And Thunderstorms
Driving Route Map
The map below follows the saved road route between Lafayette and Slidell.
Turn-by-Turn Driving Directions
Step-by-step road directions between Lafayette and Slidell.
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1
Start on Rue Vermilion Ouest
102 m · 22 sec · Rue Vermilion Ouest
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2
Turn left onto Rue Jefferson
1654 ft · 51 sec · Rue Jefferson
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3
Continue on Jefferson Boulevard
1447 ft · 47 sec · Jefferson Boulevard
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4
Turn left onto Northeast Evangeline Thruway
1.9 mi · 3 min · Northeast Evangeline Thruway
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5
Take the exit straight toward I 10 East: Baton Rouge
2523 ft · 1 min
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6
Merge slight left
55.9 mi · 1 hr 5 min
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7
Take the exit slight left toward I 12 East: Hammond
1.3 km · 2 min
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8
Continue on West Florida Republic Parkway
79.5 mi · 1 hr 26 min · West Florida Republic Parkway
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9
Take the exit slight right toward Airport Drive, North Shore Boulevard
2028 ft · 51 sec
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10
Turn right onto Northshore Boulevard
3233 ft · 1 min · Northshore Boulevard
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11
At the end of the road, turn left onto Gause Boulevard West
3 mi · 5 min · Gause Boulevard West
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12
Turn right onto Front Street
1 km · 1 min · Front Street
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13
Turn left onto Fremaux Avenue
723 ft · 19 sec · Fremaux Avenue
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14
Turn right onto 3rd Street
845 ft · 19 sec · 3rd Street
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15
Turn right onto Bouscaren Street
67 m · 10 sec · Bouscaren Street
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16
Arrive at your destination
0 m · 1 sec · Bouscaren Street
Car Route Details
A richer read on the saved driving route between Lafayette and Slidell.
Highway-focused drive
Most of the mileage stays on named highways, so the important moments are ramps, exits, merges, and the final local approach.
West Florida Republic Parkway
Continue on West Florida Republic Parkway
79.5 mi · 01h 26m
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.
Showers And Thunderstorms Likely then Chance Showers And Thunderstorms leaving Lafayette and Showers And Thunderstorms then Chance Showers And Thunderstorms near Slidell.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Lafayette to Slidell?
The road trip is about 145.2 miles (233.7 km) and usually takes 02h 18m 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?
Denham Springs is a useful midpoint, sitting about 72 miles from Lafayette and 73.2 miles from Slidell.
How much longer is the road route than the straight-line distance?
The direct path is about 133.7 miles (215.1 km), while the road route adds roughly 11.5 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 1:52 PM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $19.39 one way or $38.78 round trip. Estimated CO2 is about 45.5 kg one way.
What should you check before leaving?
Before you leave, expect Showers And Thunderstorms Likely then Chance Showers And Thunderstorms around Lafayette and Showers And Thunderstorms then Chance Showers And Thunderstorms near Slidell.
Stop Ideas Near Denham Springs
Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.
Port Vincent Clerks Office
Central City Municipal Services
City of Baton Rouge Fire Station 6
Transit and Meeting Points
Useful pickup, handoff, or rendezvous points close to Denham Springs.
Baton Rouge, Louisiana
Hammond
Schriever
McComb
Flight Path Map
This map shows the direct air route between Lafayette and Slidell. Straight-line distance: 133.66 mi (215.11 km).
#1 Lafayette
The third most populous city in Acadiana, Louisiana.
| Population | 126,535 |
| Coordinates | 30.2240900, -92.0198400 |
| Altitude | 11 |
| Country | United States |
#2 Slidell
City in Louisiana
| Population | 27,541 |
| Coordinates | 30.2751900, -89.7811700 |
| Altitude | 1 |
| Country | United States |
End: Bouscaren Street (-89.78117, 30.275199)
Estimated Travel Time
Distance: 234 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 04h 50m |
| 40 mph (64.37 km/h) | 03h 37m |
| 50 mph (80.47 km/h) | 02h 54m |
| 60 mph (96.56 km/h) | 02h 25m |
| 70 mph (112.65 km/h) | 02h 04m |
| 80 mph (129 km/h) | 01h 48m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.79 | $19.39 | $38.78 |
| Mid-grade | $4.26 | $21.81 | $43.61 |
| Premium | $4.63 | $23.68 | $47.36 |
| Diesel | $5.42 | $27.72 | $55.45 |
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 · May 02, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.