How far is Grand Isle, LA from Lafayette, LA?
The driving distance from Grand Isle, LA to Lafayette, LA is about 172.9 miles (278.2 km), with a travel time of about 03h 07m by car.
- The straight-line flight distance is about 139.7 miles (224.9 km).
- For a round trip, plan for roughly 06h 14m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 6:00 AM to 8:00 AM CDT.
Reverse, save, or send this route
This drive is better planned with a longer stop or an overnight stay. Copy the route link, send it to another device, or print a clean version before you head out.
This drive is better planned with a longer stop or an overnight stay.
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 03h 07m.
An early departure helps you fit a real stop into the day without turning the return into a late-night drive.
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.
Slight Chance Showers And Thunderstorms then Mostly Cloudy
Mostly Sunny
Driving Route Map
The map below follows the saved road route between Grand Isle and Lafayette.
Turn-by-Turn Driving Directions
Step-by-step road directions between Grand Isle and Lafayette.
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1
Start on the route
13.4 mi · 23 min
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2
Turn right onto Gateway to the Gulf Expressway
8.3 mi · 12 min · Gateway to the Gulf Expressway
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3
At the end of the road, turn left onto Highway 1
7.9 mi · 12 min · Highway 1
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4
Turn slight left onto South Alex Plaisance Boulevard
15.6 mi · 19 min · South Alex Plaisance Boulevard
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5
Turn right
2809 ft · 1 min
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6
Continue straight
14.4 mi · 20 min
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7
Turn left
110 m · 1 min
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8
Turn right onto Highway 1
3 mi · 4 min · Highway 1
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9
Turn left onto US 90 West: Morgan City
2013 ft · 49 sec
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10
Merge slight left
95.4 mi · 1 hr 44 min
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11
Keep slight right to continue on Veterans Memorial Expressway
1083 ft · 14 sec · Veterans Memorial Expressway
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12
Keep slight right to continue on Veterans Memorial Expressway
1888 ft · 24 sec · Veterans Memorial Expressway
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13
Keep slight right to continue on Veterans Memorial Expressway
2246 ft · 29 sec · Veterans Memorial Expressway
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14
Keep slight right to continue on Veterans Memorial Expressway
1189 ft · 15 sec · Veterans Memorial Expressway
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15
Keep slight right to continue on Veterans Memorial Expressway
1056 ft · 14 sec · Veterans Memorial Expressway
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16
Take the exit slight left toward Young Street
771 ft · 21 sec · Young Street
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17
Continue on Young Street
1807 ft · 38 sec · Young Street
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18
Turn right onto St Etienne Road
1 mi · 4 min · St Etienne Road
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19
At the end of the road, turn right onto East Fairfield Drive
609 ft · 22 sec · East Fairfield Drive
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20
Turn left onto Ambassador Caffery Parkway
1.5 mi · 2 min · Ambassador Caffery Parkway
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21
Turn right onto South Morgan Avenue
1.6 mi · 3 min · South Morgan Avenue
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22
Turn right onto Southwest Evangeline Thruway
1065 ft · 14 sec · Southwest Evangeline Thruway
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23
Keep slight left
48 m · 8 sec
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24
Turn left onto Southwest Evangeline Thruway
2.5 mi · 3 min · Southwest Evangeline Thruway
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25
Continue on Southeast Evangeline Thruway
2.5 mi · 4 min · Southeast Evangeline Thruway
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26
Turn left onto East University Avenue
1.4 mi · 3 min · East University Avenue
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27
Turn right onto Johnston Street
1169 ft · 31 sec · Johnston Street
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28
Turn left onto Rue Jefferson
1668 ft · 51 sec · Rue Jefferson
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29
Turn left onto Rue Vermilion Ouest
102 m · 17 sec · Rue Vermilion Ouest
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30
Arrive at your destination
0 m · 1 sec · Rue Vermilion Ouest
Car Route Details
A richer read on the saved driving route between Grand Isle and Lafayette.
Highway-focused drive
Most of the mileage stays on named highways, so the important moments are ramps, exits, merges, and the final local approach.
US 90 West
Merge slight left
95.4 mi · 01h 44m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
A longer out-and-back drive
This is still possible in one day, but it becomes a long driving day. Leaving early and planning your stop window matters more here.
Slight Chance Showers And Thunderstorms then Mostly Cloudy leaving Grand Isle and Mostly Sunny near Lafayette.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Grand Isle to Lafayette?
The road trip is about 172.9 miles (278.2 km) and usually takes 03h 07m in normal driving conditions.
Is this a same-day trip or an overnight route?
This is still possible in one day, but it becomes a long driving day. Leaving early and planning your stop window matters more here.
What is the halfway point on this route?
Schriever is a useful midpoint, sitting about 86.2 miles from Grand Isle and 86.7 miles from Lafayette.
How much longer is the road route than the straight-line distance?
The direct path is about 139.7 miles (224.9 km), while the road route adds roughly 33.2 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 6:00 AM to 8:00 AM CDT. If you want a more comfortable same-day return, try to leave by 10:46 AM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $23.10 one way or $46.20 round trip. Estimated CO2 is about 54.2 kg one way.
What should you check before leaving?
Before you leave, expect Slight Chance Showers And Thunderstorms then Mostly Cloudy around Grand Isle and Mostly Sunny near Lafayette.
Stop Ideas Near Schriever
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 Schriever.
Schriever
New Orleans Union Passenger Terminal
Baton Rouge, Louisiana
Hammond
Flight Path Map
This map shows the direct air route between Grand Isle and Lafayette. Straight-line distance: 139.73 mi (224.88 km).
#1 Grand Isle
Town of the United States
| Population | 1,447 |
| Coordinates | 29.2366200, -89.9872900 |
| Altitude | 2 |
| Country | United States |
#2 Lafayette
The third most populous city in Acadiana, Louisiana.
| Population | 126,535 |
| Coordinates | 30.2240900, -92.0198400 |
| Altitude | 11 |
| Country | United States |
End: West Vermilion Street (-92.019794, 30.224075)
Estimated Travel Time
Distance: 278 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 05h 45m |
| 40 mph (64.37 km/h) | 04h 19m |
| 50 mph (80.47 km/h) | 03h 27m |
| 60 mph (96.56 km/h) | 02h 52m |
| 70 mph (112.65 km/h) | 02h 28m |
| 80 mph (129 km/h) | 02h 09m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.79 | $23.10 | $46.20 |
| Mid-grade | $4.26 | $25.98 | $51.96 |
| Premium | $4.63 | $28.21 | $56.43 |
| Diesel | $5.42 | $33.03 | $66.06 |
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 · May 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.