How far is Gretna, LA from Slidell, LA?
The driving distance from Gretna, LA to Slidell, LA is about 38.8 miles (62.4 km), with a travel time of about 00h 42m by car.
- The straight-line flight distance is about 29.8 miles (47.9 km).
- For a round trip, plan for roughly 01h 25m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 7:00 AM to 7:00 PM CDT.
Reverse, save, or send this route
This is an easy same-day return drive. Copy the route link, send it to another device, or print a clean version before you head out.
This is an easy same-day return drive.
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 00h 42m.
This is a short drive, so your comfort window is wide. Traffic and current weather matter more than the clock.
This departure sits inside the recommended comfort window for the route.
Halfway Point
A useful midpoint for breaks, coffee, or meeting in the middle.
Census designated place
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 Gretna and Slidell.
Turn-by-Turn Driving Directions
Step-by-step road directions between Gretna and Slidell.
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1
Start on Richard Street
52 m · 13 sec · Richard Street
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2
Turn left onto 11th Street
93 m · 15 sec · 11th Street
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3
Turn right onto Evergreen Drive
986 ft · 51 sec · Evergreen Drive
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4
At the end of the road, turn left onto Westbank Expressway
2019 ft · 46 sec · Westbank Expressway
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5
Take the ramp straight toward US 90 Business East
1530 ft · 37 sec
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6
Merge slight left onto Westbank Expressway
2.1 mi · 3 min · Westbank Expressway
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7
Continue on Crescent City Connection
1 km · 58 sec · Crescent City Connection
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8
Continue on Pontchartrain Expressway
1.7 mi · 2 min · Pontchartrain Expressway
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9
Take the exit slight right toward I 10 East: Slidell
1656 ft · 40 sec
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10
Merge slight left onto I 10 East: Slidell
28.6 mi · 33 min
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11
Take the exit slight right toward LA 433: Old Spanish Trail
1064 ft · 30 sec
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12
Turn left onto Old Spanish Trail
1.7 mi · 3 min · Old Spanish Trail
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13
Turn sharp right onto Sergeant Alfred Drive
1.1 km · 1 min · Sergeant Alfred Drive
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14
Continue on 3rd Street
837 ft · 22 sec · 3rd Street
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15
Turn left 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 Gretna 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 onto I 10 East: Slidell
28.6 mi · 00h 33m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
A short regional drive
This route is short enough to handle as a quick errand, commute, or easy same-day return without much planning overhead.
Mostly Sunny leaving Gretna 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 Gretna to Slidell?
The road trip is about 38.8 miles (62.4 km) and usually takes 00h 42m in normal driving conditions.
Is this a same-day trip or an overnight route?
This route is short enough to handle as a quick errand, commute, or easy same-day return without much planning overhead.
What is the halfway point on this route?
Chalmette is a useful midpoint, sitting about 18.6 miles from Gretna and 20.2 miles from Slidell.
How much longer is the road route than the straight-line distance?
The direct path is about 29.8 miles (47.9 km), while the road route adds roughly 9 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 7:00 AM to 7:00 PM CDT. If you want a more comfortable same-day return, try to leave by 7:04 PM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $5.19 one way or $10.38 round trip. Estimated CO2 is about 12.2 kg one way.
What should you check before leaving?
Before you leave, expect Mostly Sunny around Gretna and Mostly Sunny near Slidell.
Flight Path Map
This map shows the direct air route between Gretna and Slidell. Straight-line distance: 29.78 mi (47.92 km).
#1 Gretna
Suburb city of New Orleans
| Population | 17,615 |
| Coordinates | 29.9146500, -90.0539600 |
| Altitude | 0 |
| 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: 62 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 01h 17m |
| 40 mph (64.37 km/h) | 00h 58m |
| 50 mph (80.47 km/h) | 00h 46m |
| 60 mph (96.56 km/h) | 00h 38m |
| 70 mph (112.65 km/h) | 00h 33m |
| 80 mph (129 km/h) | 00h 29m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.79 | $5.19 | $10.38 |
| Mid-grade | $4.26 | $5.83 | $11.67 |
| Premium | $4.63 | $6.34 | $12.67 |
| Diesel | $5.42 | $7.42 | $14.84 |
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 13, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.