How far is Slidell, LA from Donaldsonville, LA?
The driving distance from Slidell, LA to Donaldsonville, LA is about 93.1 miles (149.9 km), with a travel time of about 01h 51m by car.
- The straight-line flight distance is about 73.4 miles (118.2 km).
- For a round trip, plan for roughly 03h 42m 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 51m.
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
Driving Route Map
The map below follows the saved road route between Slidell and Donaldsonville.
Turn-by-Turn Driving Directions
Step-by-step road directions between Slidell and Donaldsonville.
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1
Start on Bouscaren Street
67 m · 12 sec · Bouscaren Street
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2
Turn right onto 3rd Street
837 ft · 17 sec · 3rd Street
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3
Continue on Sergeant Alfred Drive
1.1 km · 1 min · Sergeant Alfred Drive
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4
Turn sharp left onto Old Spanish Trail
1.5 mi · 2 min · Old Spanish Trail
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5
Take the ramp straight toward I 10 West: New Orleans
1645 ft · 40 sec
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6
Merge slight left
25.2 mi · 29 min
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7
Take the exit slight right toward I 610 West: New Orleans International Airport, Baton Rouge
4.5 mi · 6 min
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8
Merge slight right
47.6 mi · 55 min
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9
Take the exit slight right toward LA 22: Sorrento, Donaldsonville
1749 ft · 34 sec
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10
Turn left
2728 ft · 57 sec
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11
Enter the roundabout and take exit 2 toward Crawford Leblanc Boulevard
63 m · 12 sec · Crawford Leblanc Boulevard
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12
Exit the roundabout onto Crawford Leblanc Boulevard
4.2 mi · 5 min · Crawford Leblanc Boulevard
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13
Turn straight
5.2 mi · 7 min
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14
Keep slight right to continue on LA 3009: Donaldsonville
2.9 mi · 4 min
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15
Arrive at your destination
0 m · 1 sec · West 10th Street
Car Route Details
A richer read on the saved driving route between Slidell and Donaldsonville.
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 610 West
Merge slight right
47.6 mi · 00h 55m
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 Slidell and Sunny near Donaldsonville.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Slidell to Donaldsonville?
The road trip is about 93.1 miles (149.9 km) and usually takes 01h 51m 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 46.5 miles from Slidell and 46.6 miles from Donaldsonville.
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 19.7 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 2:48 PM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $12.87 one way or $25.74 round trip. Estimated CO2 is about 29.2 kg one way.
What should you check before leaving?
Before you leave, expect Sunny around Slidell and Sunny near Donaldsonville.
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 Slidell and Donaldsonville. Straight-line distance: 73.43 mi (118.18 km).
#1 Slidell
City in Louisiana
| Population | 27,541 |
| Coordinates | 30.2751900, -89.7811700 |
| Altitude | 1 |
| Country | United States |
#2 Donaldsonville
City in Louisiana, United States
| Population | 8,638 |
| Coordinates | 30.1011400, -90.9941200 |
| Altitude | 7 |
| Country | United States |
End: Donaldsonville (-90.99412, 30.10114)
Estimated Travel Time
Distance: 150 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 03h 06m |
| 40 mph (64.37 km/h) | 02h 19m |
| 50 mph (80.47 km/h) | 01h 51m |
| 60 mph (96.56 km/h) | 01h 33m |
| 70 mph (112.65 km/h) | 01h 19m |
| 80 mph (129 km/h) | 01h 09m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.91 | $12.87 | $25.74 |
| Mid-grade | $4.38 | $14.40 | $28.79 |
| Premium | $4.78 | $15.73 | $31.46 |
| Diesel | $5.82 | $19.16 | $38.32 |
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