How far is Lafayette, LA from Erath, LA?
The driving distance from Lafayette, LA to Erath, LA is about 21.2 miles (34.1 km), with a travel time of about 00h 39m by car.
- The straight-line flight distance is about 18.4 miles (29.6 km).
- For a round trip, plan for roughly 01h 18m 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 39m.
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.
Suburb city of Lafayette, located in Lafayette Parish, Louisiana, United States of America
Route Weather Snapshot
Check the forecast at both ends before you head out.
Showers And Thunderstorms Likely
Showers And Thunderstorms Likely
Driving Route Map
The map below follows the saved road route between Lafayette and Erath.
Turn-by-Turn Driving Directions
Step-by-step road directions between Lafayette and Erath.
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1
Start on Rue Vermilion Ouest
102 m · 19 sec · Rue Vermilion Ouest
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2
Turn right onto Rue Jefferson
1668 ft · 49 sec · Rue Jefferson
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3
Turn right onto Johnston Street
1169 ft · 31 sec · Johnston Street
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4
Turn left onto East University Avenue
1.2 km · 1 min · East University Avenue
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5
Turn right onto West Pinhook Road
1.6 mi · 3 min · West Pinhook Road
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6
Turn right onto Kaliste Saloom Road
1.5 mi · 3 min · Kaliste Saloom Road
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7
Turn left onto Rue Louis XIV
1.2 km · 2 min · Rue Louis XIV
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8
Turn right onto Verot School Road
4.1 mi · 7 min · Verot School Road
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9
Enter the roundabout and take exit 2 toward Verot School Road
30 m · 2 sec · Verot School Road
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10
Exit the roundabout onto Verot School Road
3 mi · 5 min · Verot School Road
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11
Continue on Chemin Agreable Street
2546 ft · 53 sec · Chemin Agreable Street
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12
Turn right onto Decon Road
1.1 mi · 2 min · Decon Road
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13
Turn straight onto Highway 339
6.4 mi · 11 min · Highway 339
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14
Turn right onto East Lastie Street
1.3 km · 1 min · East Lastie Street
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15
Turn right onto North Kibbe Street
13 m · 2 sec · North Kibbe Street
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16
Arrive at your destination
0 m · 1 sec · North Kibbe Street
Car Route Details
A richer read on the saved driving route between Lafayette and Erath.
Turn-heavy local drive
The route has frequent decision points for its length, so lane choice and turn timing will matter more than cruising speed.
Highway 339
Turn straight onto Highway 339
6.4 mi · 00h 11m
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.
Showers And Thunderstorms Likely leaving Lafayette and Showers And Thunderstorms Likely near Erath.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Lafayette to Erath?
The road trip is about 21.2 miles (34.1 km) and usually takes 00h 39m 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?
Youngsville is a useful midpoint, sitting about 10.6 miles from Lafayette and 10.6 miles from Erath.
How much longer is the road route than the straight-line distance?
The direct path is about 18.4 miles (29.6 km), while the road route adds roughly 2.8 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 7:12 PM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $2.84 one way or $5.68 round trip. Estimated CO2 is about 6.7 kg one way.
What should you check before leaving?
Before you leave, expect Showers And Thunderstorms Likely around Lafayette and Showers And Thunderstorms Likely near Erath.
Stop Ideas Near Youngsville
Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.
Parks City Hall
Lafayette Consolidated Government
Housing Authority of Lafayette
City of St. Martinville Tourist Information Center
Transit and Meeting Points
Useful pickup, handoff, or rendezvous points close to Youngsville.
Lafayette
New Iberia
Baton Rouge, Louisiana
Lake Charles
Flight Path Map
This map shows the direct air route between Lafayette and Erath. Straight-line distance: 18.39 mi (29.6 km).
#1 Lafayette
The third most populous city in Acadiana, Louisiana.
| Population | 126,535 |
| Coordinates | 30.2240900, -92.0198400 |
| Altitude | 11 |
| Country | United States |
#2 Erath
City in Louisiana, United States of America
| Population | 2,030 |
| Coordinates | 29.9582600, -92.0359600 |
| Altitude | 2 |
| Country | United States |
End: Erath (-92.03596, 29.95826)
Estimated Travel Time
Distance: 34 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 00h 42m |
| 40 mph (64.37 km/h) | 00h 31m |
| 50 mph (80.47 km/h) | 00h 25m |
| 60 mph (96.56 km/h) | 00h 21m |
| 70 mph (112.65 km/h) | 00h 18m |
| 80 mph (129 km/h) | 00h 15m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.79 | $2.84 | $5.68 |
| Mid-grade | $4.26 | $3.19 | $6.39 |
| Premium | $4.63 | $3.47 | $6.94 |
| Diesel | $5.42 | $4.06 | $8.12 |
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 23, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.