How far is Donaldsonville, LA from Slidell, LA?
The driving distance from Donaldsonville, LA to Slidell, LA is about 94.4 miles (151.9 km), with a travel time of about 01h 33m by car.
- The straight-line flight distance is about 73.4 miles (118.2 km).
- For a round trip, plan for roughly 03h 07m 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 01h 33m.
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 Louisiana, United States of America
Route Weather Snapshot
Check the forecast at both ends before you head out.
Sunny
Sunny
Driving Route Map
The map below follows the saved road route between Donaldsonville and Slidell.
Turn-by-Turn Driving Directions
Step-by-step road directions between Donaldsonville and Slidell.
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1
Start on West 10th Street
3 m · 2 sec · West 10th Street
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2
Continue on Albert Street
918 ft · 16 sec · Albert Street
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3
Continue on Marchand Drive
2231 ft · 31 sec · Marchand Drive
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4
Continue on Division Street
1.8 mi · 2 min · Division Street
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5
Continue straight
1.9 mi · 3 min
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6
Keep slight right
3.9 mi · 5 min
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7
Keep slight right
4.2 mi · 5 min
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8
Keep slight right to continue on Crawford Leblanc Boulevard
640 ft · 8 sec · Crawford Leblanc Boulevard
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9
Merge slight left
1520 ft · 29 sec
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10
Take the exit slight right toward I 10 East: New Orleans
2004 ft · 49 sec
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11
Merge slight left
47.3 mi · 54 min
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12
Keep slight left to continue on Slidell
5 mi · 6 min
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13
Merge slight left
24.9 mi · 28 min
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14
Take the exit slight right toward LA 433: Old Spanish Trail
1064 ft · 30 sec
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15
Turn left onto Old Spanish Trail
1.7 mi · 3 min · Old Spanish Trail
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16
Turn sharp right onto Sergeant Alfred Drive
1.1 km · 1 min · Sergeant Alfred Drive
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17
Continue on 3rd Street
837 ft · 22 sec · 3rd Street
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18
Turn left onto Bouscaren Street
67 m · 10 sec · Bouscaren Street
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19
Arrive at your destination
0 m · 1 sec · Bouscaren Street
Car Route Details
A richer read on the saved driving route between Donaldsonville 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.
I 10 East
Merge slight left
47.3 mi · 00h 54m
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.
Sunny leaving Donaldsonville and Sunny near Slidell.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Donaldsonville to Slidell?
The road trip is about 94.4 miles (151.9 km) and usually takes 01h 33m 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?
New Sarpy is a useful midpoint, sitting about 46.6 miles from Donaldsonville and 47.7 miles from Slidell.
How much longer is the road route than the straight-line distance?
The direct path is about 73.4 miles (118.2 km), while the road route adds roughly 21 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 3:22 PM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $13.03 one way or $26.05 round trip. Estimated CO2 is about 29.6 kg one way.
What should you check before leaving?
Before you leave, expect Sunny around Donaldsonville and Sunny near Slidell.
Stop Ideas Near New Sarpy
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 New Sarpy.
New Orleans Union Passenger Terminal
Schriever
Hammond
Slidell
Flight Path Map
This map shows the direct air route between Donaldsonville and Slidell. Straight-line distance: 73.43 mi (118.18 km).
#1 Donaldsonville
City in Louisiana, United States
| Population | 8,638 |
| Coordinates | 30.1011400, -90.9941200 |
| Altitude | 7 |
| 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: 152 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 03h 08m |
| 40 mph (64.37 km/h) | 02h 21m |
| 50 mph (80.47 km/h) | 01h 53m |
| 60 mph (96.56 km/h) | 01h 34m |
| 70 mph (112.65 km/h) | 01h 20m |
| 80 mph (129 km/h) | 01h 10m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.91 | $13.03 | $26.05 |
| Mid-grade | $4.38 | $14.57 | $29.14 |
| Premium | $4.78 | $15.92 | $31.84 |
| Diesel | $5.82 | $19.39 | $38.78 |
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 · Oct 15, 2026