How far is Opelousas, LA from Slidell, LA?
The driving distance from Opelousas, LA to Slidell, LA is about 148.4 miles (238.8 km), with a travel time of about 02h 24m by car.
- The straight-line flight distance is about 138.3 miles (222.5 km).
- For a round trip, plan for roughly 04h 49m 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 24m.
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.
Mostly Sunny
Mostly Sunny
Driving Route Map
The map below follows the saved road route between Opelousas and Slidell.
Turn-by-Turn Driving Directions
Step-by-step road directions between Opelousas and Slidell.
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1
Start on South Main Street
622 ft · 20 sec · South Main Street
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2
Turn left onto East Vine Street
50.4 mi · 1 hr 5 min · East Vine Street
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3
Keep slight right
3.6 mi · 5 min
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4
Turn left onto I 10 East: Baton Rouge
1512 ft · 37 sec
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5
Merge slight left
7.6 mi · 10 min
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6
Take the exit slight left toward I 12 East: Hammond
1.3 km · 2 min
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7
Continue on West Florida Republic Parkway
79.5 mi · 1 hr 26 min · West Florida Republic Parkway
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8
Take the exit slight right toward Airport Drive, North Shore Boulevard
2028 ft · 51 sec
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9
Turn right onto Northshore Boulevard
3233 ft · 1 min · Northshore Boulevard
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10
At the end of the road, turn left onto Gause Boulevard West
3 mi · 5 min · Gause Boulevard West
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11
Turn right onto Front Street
1 km · 1 min · Front Street
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12
Turn left onto Fremaux Avenue
723 ft · 19 sec · Fremaux Avenue
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13
Turn right onto 3rd Street
845 ft · 19 sec · 3rd Street
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14
Turn right onto Bouscaren Street
67 m · 10 sec · Bouscaren Street
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15
Arrive at your destination
0 m · 1 sec · Bouscaren Street
Car Route Details
A richer read on the saved driving route between Opelousas 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.
Mostly Sunny leaving Opelousas and Mostly Sunny near Slidell.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Opelousas to Slidell?
The road trip is about 148.4 miles (238.8 km) and usually takes 02h 24m 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 73.6 miles from Opelousas and 74.8 miles from Slidell.
How much longer is the road route than the straight-line distance?
The direct path is about 138.3 miles (222.5 km), while the road route adds roughly 10.1 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 8:00 AM to 10:00 AM CDT. If you want a more comfortable same-day return, try to leave by 1:40 PM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $19.84 one way or $39.69 round trip. Estimated CO2 is about 46.6 kg one way.
What should you check before leaving?
Before you leave, expect Mostly Sunny around Opelousas and Mostly Sunny 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
Vital Records Unit
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 Opelousas and Slidell. Straight-line distance: 138.24 mi (222.47 km).
#1 Opelousas
Parish seat of St.
| Population | 15,562 |
| Coordinates | 30.5335300, -92.0815100 |
| Altitude | 20 |
| 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: 239 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 04h 56m |
| 40 mph (64.37 km/h) | 03h 42m |
| 50 mph (80.47 km/h) | 02h 58m |
| 60 mph (96.56 km/h) | 02h 28m |
| 70 mph (112.65 km/h) | 02h 07m |
| 80 mph (129 km/h) | 01h 51m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.79 | $19.84 | $39.69 |
| Mid-grade | $4.26 | $22.32 | $44.63 |
| Premium | $4.63 | $24.24 | $48.47 |
| Diesel | $5.42 | $28.37 | $56.75 |
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.