How far is Marrero, LA from Opelousas, LA?
The driving distance from Marrero, LA to Opelousas, LA is about 141.7 miles (228 km), with a travel time of about 02h 57m by car.
- The straight-line flight distance is about 126.1 miles (203 km).
- For a round trip, plan for roughly 05h 54m 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 57m.
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.
Town in West Carroll Parish, Louisiana
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 Marrero and Opelousas.
Turn-by-Turn Driving Directions
Step-by-step road directions between Marrero and Opelousas.
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1
Start on Barataria Boulevard
105 m · 13 sec · Barataria Boulevard
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2
Continue on Barataria Boulevard
1975 ft · 58 sec · Barataria Boulevard
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3
Turn right onto Westbank Expressway
40 m · 3 sec · Westbank Expressway
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4
Take the ramp slight left toward US 90 Business West
1280 ft · 31 sec
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5
Merge slight left onto Westbank Expressway
4.2 mi · 5 min · Westbank Expressway
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6
Turn right onto Nine Mile Point Road
2385 ft · 1 min · Nine Mile Point Road
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7
Continue on West Nine Mile Point Road
978 ft · 27 sec · West Nine Mile Point Road
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8
Turn right
2.6 mi · 4 min
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9
Continue straight
3.8 mi · 8 min
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10
Take the exit slight right toward I 10 West: Baton Rouge
1975 ft · 51 sec
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11
Keep slight left
1700 ft · 41 sec
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12
Merge slight left
70.8 mi · 1 hr 20 min
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13
Keep slight left
3.9 mi · 5 min
-
14
Take the exit slight right toward LA 415: Lobdell
1842 ft · 45 sec
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15
Keep slight right to continue on LA 415: Lobdell
97 m · 8 sec
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16
Merge slight left onto North Lobdell Highway
3.6 mi · 5 min · North Lobdell Highway
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17
Merge slight left onto State Route 1
50.2 mi · 1 hr 4 min · State Route 1
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18
Turn right onto South Union Street
118 m · 12 sec · South Union Street
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19
Turn left onto East Bellevue Street
71 m · 16 sec · East Bellevue Street
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20
Turn left onto South Main Street
48 m · 3 sec · South Main Street
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21
Arrive at your destination
0 m · 1 sec · South Main Street
Car Route Details
A richer read on the saved driving route between Marrero and Opelousas.
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 West
Merge slight left
70.8 mi · 01h 20m
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 Marrero and Mostly Sunny near Opelousas.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Marrero to Opelousas?
The road trip is about 141.7 miles (228 km) and usually takes 02h 57m 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?
Oak Grove is a useful midpoint, sitting about 70.8 miles from Marrero and 70.9 miles from Opelousas.
How much longer is the road route than the straight-line distance?
The direct path is about 126.1 miles (203 km), while the road route adds roughly 15.6 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 12:36 PM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $18.94 one way or $37.87 round trip. Estimated CO2 is about 44.4 kg one way.
What should you check before leaving?
Before you leave, expect Mostly Sunny around Marrero and Mostly Sunny near Opelousas.
Stop Ideas Near Oak Grove
Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.
City Hall Plaza
Port Vincent Clerks Office
Baton Rouge City Hall
City of Baton Rouge Fire Station 15
Transit and Meeting Points
Useful pickup, handoff, or rendezvous points close to Oak Grove.
Baton Rouge, Louisiana
Hammond
Schriever
New Iberia
Flight Path Map
This map shows the direct air route between Marrero and Opelousas. Straight-line distance: 126.14 mi (203 km).
#1 Marrero
CDP in Jefferson Parish, Louisiana
| Population | 33,141 |
| Coordinates | 29.8993700, -90.1003500 |
| Altitude | 1 |
| Country | United States |
#2 Opelousas
Parish seat of St.
| Population | 15,562 |
| Coordinates | 30.5335300, -92.0815100 |
| Altitude | 20 |
| Country | United States |
End: Opelousas (-92.08151, 30.53353)
Estimated Travel Time
Distance: 228 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 04h 43m |
| 40 mph (64.37 km/h) | 03h 32m |
| 50 mph (80.47 km/h) | 02h 50m |
| 60 mph (96.56 km/h) | 02h 21m |
| 70 mph (112.65 km/h) | 02h 01m |
| 80 mph (129 km/h) | 01h 46m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.79 | $18.94 | $37.87 |
| Mid-grade | $4.26 | $21.30 | $42.59 |
| Premium | $4.63 | $23.13 | $46.25 |
| Diesel | $5.42 | $27.08 | $54.15 |
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.