Sulphur, LA to Marrero, LA is 222.4 miles and takes about 4h 14m via I 10 and US 90, with a fuel budget near $35 and enough daylight to finish in a day. This drive stays within Louisiana, taking you from the Southeast region to another part of the Southeast. With 97% of the trip on highways, expect a fairly straightforward and efficient trip. This is a solid option if you're looking for a direct route across the state, with most of the driving on major interstates.
Trip Pace
Same-day drive is realistic
A same-day return is possible, but it will make for a full day on the road.
Break Rhythm
1 planned break
Plan on a short reset every 3 to 4 hours to stay fresh behind the wheel.
Midpoint
111.2 miles from Sulphur, LA
A natural place for your longest stop of the day
, about 2h 7m into the drive
.
Main Roads
Road
Distance
Duration
I 10
185 mi
3h 27m
US 90
18.6 mi
21m
East Napoleon Street
6 mi
9m
Pontchartrain Expressway
5.9 mi
6m
Westbank Expressway
5.6 mi
7m
Crescent City Connection
0.7 mi
1m
Barataria Boulevard
0.3 mi
<1m
Longest stretch:
I 10
— 185 mi, about 3h 27m
Turn-by-Turn Driving Directions
Step-by-step road directions between Sulphur, LA and Marrero, LA.
1
Start on US 90
6.0 mi·9 min·East Napoleon Street
Use the straight lane.
2
Take the ramp onto US 90
19 mi·21 min·US 90
3
Continue on I 10
185 mi·3 hr 27 min·I 10
Use the straight / slight right lanes.
4
Keep slight right at fork onto I 10
3.5 mi·4 min·Pontchartrain Expressway
Toward New Orleans, Business DistrictUse the straight / slight right lanes.
5
Keep slight left at fork onto US 90 BUS
2.4 mi·2 min·Pontchartrain Expressway
Use the straight / slight right lanes.
6
Continue on US 90 BUS
0.7 mi·1 min·Crescent City Connection
7
Continue on US 90 BUS
5.4 mi·6 min·Westbank Expressway
Use the straight / slight right lanes.
8
Take the exit
0.3 mi·30 sec
Exit 4BToward LA 45: Barataria BoulevardUse the slight right lane.
9
Turn straight onto Westbank Expressway
0.3 mi·36 sec·Westbank Expressway
Use the left / straight lanes.
10
Turn right onto LA 45
0.3 mi·39 sec·Barataria Boulevard
11
Arrive at destination
LA 18
Trip Plan
Given the 4h 14m estimated drive time, this trip is easily doable in a single day. To make the most of your daylight, aim to depart Sulphur in the morning. With only one recommended stop and a relatively short duration, you have flexibility in pacing yourself. Keep an eye on your fuel gauge, especially during the 185-mile stretch on I 10, as services can be spaced out. The estimated fuel cost of $35 is a good budget baseline for this 222.4-mile drive.
Morning Departure
An early start around 7-8 AM gets you there with plenty of daylight left.
Evening Departure
A late afternoon start means arriving after dark. Morning is better.
You can normally do this drive in one day.
Plan roughly 1 meaningful break for fuel, food, and rest.
The halfway point lands around 111.2 miles from Sulphur, LA, or about 2h 7m into the drive.
The longest continuous stretch on this route runs about 185 miles.
This is a comfortable same-day trip.
Departure
Before you leave
Start with fuel, water, and navigation already sorted so the first hour feels easy.
First stop
Around 49 miles or 58m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 111.2 miles or 2h 7m in
This is the best place for your longest stop, a real meal, and a full fuel check.
Final approach
Final hour starts around 3h 27m
Traffic, exits, and arrival timing usually matter more near Marrero, LA than in the middle of the route.
Before You Leave
+
Open the route before leaving Sulphur, LA so your first major turns are already loaded.
+
Leave with enough water and a charging cable within reach, not packed away.
+
Check your fuel range against the first long segment, especially if you are starting outside city service areas.
Day 1
Settle into the route from Sulphur, LA
This is one driving day of about 222.4 miles and 4h 14m.
Your first comfortable stop window is around 49 miles from Sulphur, LA.
This route can stay practical as a one-day drive if traffic stays reasonable.
Plan about 1 real break rather than only quick fuel stops.
The longest stretch is on I 10 for about 185 miles.
Where to Stop
Rest stops, refuel points, and overnight suggestions along this route.
Place data sourced from public business listings. Hours and availability may vary.
Heads-up: tricky spots
5 of 6
5 decision points cluster between mile 0 and 222.1 — GPS handles the exact turns, but know they're coming. Your lane choice matters more than the turn itself.
4
0 mi into trip|~0m in|US 90 / East Napoleon Street
Depart onto US 90 / East Napoleon Street
Lane positioning matters here
Use the straight lane.
8
209.6 mi into trip|~3h 58m in|I 10 / Pontchartrain Expressway
Keep slight right at fork onto I 10 / Pontchartrain Expressway toward New Orleans, Business District
Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one
Use the straight / slight right lanes.
Toward New Orleans, Business District
6
213.1 mi into trip|~4h 2m in|US 90 BUS / Pontchartrain Expressway
Keep slight left at fork onto US 90 BUS / Pontchartrain Expressway
Highway fork - watch signs carefully. Lane positioning matters here
Use the straight / slight right lanes.
7
221.5 mi into trip|~4h 12m in
Take the exit toward LA 45: Barataria Boulevard
Exit ramp - move to the correct lane early. Lane positioning matters here
Use the slight right lane.
Exit 4B
Toward LA 45: Barataria Boulevard
5
222.1 mi into trip|~4h 14m in|LA 45 / Barataria Boulevard
Turn right onto LA 45 / Barataria Boulevard
Navigation decision point
Fuel & Cost
Regular Gas
$30.87 one way
$61.75 round trip
$3.53/gal25.4 MPG avg78 kg CO2
Fuel Type
$/gal
One Way
Round Trip
midgrade
$3.95
$34.54
$69.08
premium
$4.29
$37.55
$75.11
diesel
$4.80
$41.99
$83.99
No toll roads detected on this route.
Estimated Trip Cost (one way, 1 person)
Fuel
$31
Meals
$25–$50
Total
$56–$81
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 77.8 kg one way.
Prices: EIA weekly data, 2026-07-13.
Driving Electric?
About $23 in charging
· 0 stops
· 67% less CO2
Vehicle Type
kWh
Stops
DC Fast
Home Charge
Average EV
66.7
0
$23.35
$10.68
Efficient EV
55.6
0
$19.46
$8.90
EV Truck/SUV
89
1
$31.14
$14.23
Gas CO2
78 kg
EV CO2
26 kg (67% less)
Plan for 0 charging stops, roughly every 270 miles. Allow 25-40 minutes per stop at a DC fast charger.
DC fast charging avg $0.35/kWh. Home charging avg $0.16/kWh. US grid CO2: 0.39 kg/kWh.
Travel Intel
Current conditions at both ends of the drive.
Forecast as of Jul 18, 2026
Origin
Sulphur, LA
Late night
in Sulphur on Sunday
Local time
4:12 AM
CDT
Current temp
93°F
Mostly Sunny
SW 5 mph3% chanceLive forecast
Heat Advisory
Heat Advisory issued July 18 at 10:12AM CDT until July 20 at 7:00PM CDT by NWS Jackson MS
Heat Advisory
Heat Advisory issued July 18 at 10:11AM CDT until July 18 at 6:00PM CDT by NWS New Orleans LA
Destination
Marrero, LA
Late night
in Marrero on Sunday
Local time
4:12 AM
CDT
Current temp
95°F
Sunny
NW 5 to 10 mph4% chanceLive forecast
Heat Advisory
Heat Advisory issued July 18 at 10:12AM CDT until July 20 at 7:00PM CDT by NWS Jackson MS
Heat Advisory
Heat Advisory issued July 18 at 10:11AM CDT until July 18 at 6:00PM CDT by NWS New Orleans LA
Seasonal Notes
Summer travel usually means heavier construction, hotter rest stops, and busier weekend traffic around major cities.
Winter travel shortens daylight, so a route that looks manageable on paper can feel much longer after dark.
Holiday weekends tend to make both departure and arrival windows slower than the raw route time suggests.
Time zone
Same local time
Origin and destination are on the same clock, so arrival timing is easier to judge at a glance.
Temperature spread
2 degrees warmer at arrival
A meaningful temperature swing is a good cue to rethink layers, water, and how soon you want to arrive.
Road read
4h 14m on the road
An early start around 7-8 AM gets you there with plenty of daylight left.
Weather data from the National Weather Service. Conditions may change; check closer to your travel date.
National Parks Near This Route
Worth a detour if your schedule allows.
New Orleans Jazz National Historical Park
National Historical Park
Discover the roots of jazz at the New Orleans Jazz National Historical Park. Located in the heart of the French Quarter, our park offers live performances, exhibits, and programs that celebrate the le...
1 mi from route
~4 min detour
Free
near mile 214.7
Park data from the National Park Service API. Alerts update every 2 hours.
More Details
What kind of drive is this?
You'll spend almost all of your time on highways, with 97% of the 222.4 miles covered on major roads like I 10 and US 90. The longest continuous stretch on the highway is 185 miles on I 10. Expect a lot of exits and interchanges as you navigate this primarily highway route. The final portion will transition to surface roads, with East Napoleon Street being one of the last roads you'll be on.
97% highway — fuel and pacing are the main things to plan.
11 navigation steps total — most of the decisions cluster near the start and finish.
Longest single stretch: 185 mi on I 10.
How Hard Is This Drive?
5/10
This is a straightforward highway drive that stays mostly on I 10 and US 90. You will hit about 6 points where you need to pay attention to lane position or signs. The trickiest moment comes early in the drive near US 90 / East Napoleon Street.
Driving Effort5/10
Moderate - straightforward overall, but long enough or busy enough to require pacing
Balances navigation complexity with total wheel time.
This drive requires moderate attention. Across 222.4 miles you will encounter 6 spots where lane choice or exit timing matters. Not difficult for experienced highway drivers, but worth previewing the tricky sections before you go.
Where does it get tricky?
The main spots that need attention: near the start (US 90 / East Napoleon Street): Lane positioning matters here; at 209.6 miles (I 10 / Pontchartrain Expressway): Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one; at 213.1 miles (US 90 BUS / Pontchartrain Expressway): Highway fork - watch signs carefully. Lane positioning matters here.
Elevation Profile
Mostly flat terrain
40 ft-4 ft
Total Climb
50 ft
Total Descent
64 ft
Highest Point
40 ft
~79.4 mi in
Elevation Range
44 ft
Towns Mentioned on Route Signs
Based on OSRM destination-sign hints, not a full list of every settlement the road passes.
Between Sulphur, LA and Marrero, LA, road signs point toward New Orleans and Business District.
Doable as a same-day drive at 4h 14m. Total distance: 222.4 miles.
Family Friendly
Moderate complexity with 1 natural rest stops along the way.
Solo Traveler
4h 14m drive, comfortable solo distance.
First-Time Driver
Mostly highway driving (97%). Some complex stretches to watch for.
Frequently Asked Questions
The longest stretch is about 185 miles on I 10. The full list of main roads is in the Roads section above.
Yes — we found about 18 rest areas or service plazas within a short detour of the route (from OpenStreetMap). See the Rest Stops tab under Nearby Places for locations and mile markers. Plan to stretch, use the bathroom, and top off fluids every 2–3 hours on longer drives.
Yes, with realistic expectations. Build in a stop roughly every 2 hours, have snacks and activities ready, and check the Nearby Places tabs for kid-friendly stops along the way.
The main spots that need attention: near the start (US 90 / East Napoleon Street): Lane positioning matters here; at 209.6 miles (I 10 / Pontchartrain Expressway): Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one; at 213.1 miles (US 90 BUS / Pontchartrain Expressway): Highway fork - watch signs carefully. Lane positioning matters here.
Yes — New Orleans Jazz National Historical Park. See the National Parks section for detour distances and tips on detours.
Possible but tiring. At 4.2 hours each way, an in-and-out day trip would put you behind the wheel for 8.5 hours — manageable with a long break at Marrero, LA, but most travelers stay overnight.
