How far is Lafayette, LA from Chalmette, LA?

The driving distance from Lafayette, LA to Chalmette, LA is about 141.3 miles (227.4 km), with a travel time of about 02h 53m by car.

  • The straight-line flight distance is about 124.3 miles (200.1 km).
  • For a round trip, plan for roughly 05h 46m of driving time before adding stops, traffic, or weather delays.
  • A comfortable departure window is usually 8:00 AM to 10:00 AM CDT.
Trip Tools

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.

Reverse Route
Quick Snapshot
Road
141.32 mi
02h 53m
Flight
124.35 mi
200.13 km direct

This route works well as a day trip with time at the destination.

Learn Distance

Choose another destination from Lafayette.

Flight Distance

Direct air line
124.35 mi
Kilometers
200.13 km
Flight Time
00h 15m

Driving Distance

Road route
141.32 mi
Kilometers
227.44 km
Drive Time
02h 53m

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 53m.

Arrival Snapshot
Arrive in Chalmette
Wed, Apr 15, 11:10 PM CDT
Return by in Lafayette
Thu, Apr 16, 2:03 AM CDT
Useful when you're deciding between a quick errand, a day trip, or a longer stop.
Leave Lafayette
2026-04-15T20:17
Arrive Chalmette
Wed, Apr 15, 11:10 PM CDT
Route Timing
02h 53m
One way by road
Best Departure Window
8:00 AM to 10:00 AM CDT
Aim for a morning departure
Arrive between
10:53 AM to 12:53 PM CDT

A morning start gives you useful time at the destination and keeps the return out of the late evening.

Leave by
12:44 PM CDT
Keeps a same-day return open with about 03h 00m at the destination.
Back in Lafayette
9:30 PM CDT
Morning start is best

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.

Mid-route stop
Oak Grove
LA

Town in West Carroll Parish, Louisiana

From Lafayette
70.6 mi
01h 26m
To Chalmette
70.7 mi
01h 26m

Route Weather Snapshot

Check the forecast at both ends before you head out.

Origin
84°F
Today

Mostly Sunny

Starts
Wed, Apr 15 7:00 AM CDT
Wind
5 to 15 mph SE
Destination
67°F
Overnight

Mostly Clear

Starts
Wed, Apr 15 5:00 AM CDT
Wind
5 mph SE

Driving Route Map

The map below follows the saved road route between Lafayette and Chalmette.

Turn-by-Turn Driving Directions

Step-by-step road directions between Lafayette and Chalmette.

  1. 1

    Start on Rue Vermilion Ouest

    102 m · 22 sec · Rue Vermilion Ouest

  2. 2

    Turn left onto Rue Jefferson

    1654 ft · 51 sec · Rue Jefferson

  3. 3

    Continue on Jefferson Boulevard

    1447 ft · 47 sec · Jefferson Boulevard

  4. 4

    Turn left onto Northeast Evangeline Thruway

    1.9 mi · 3 min · Northeast Evangeline Thruway

  5. 5

    Take the exit straight toward I 10 East: Baton Rouge

    2523 ft · 1 min

  6. 6

    Merge slight left

    126.9 mi · 2 hr 25 min

  7. 7

    Keep slight left to continue on Slidell

    3.9 mi · 5 min

  8. 8

    Take the exit slight right toward LA 3021: Elysian Fields Avenue

    919 ft · 32 sec

  9. 9

    Turn right onto Elysian Fields Avenue

    3149 ft · 1 min · Elysian Fields Avenue

  10. 10

    Continue on Elysian Fields Avenue

    1 km · 1 min · Elysian Fields Avenue

  11. 11

    Turn left onto North Claiborne Avenue

    530 ft · 15 sec · North Claiborne Avenue

  12. 12

    Continue on North Robertson Street

    1.6 mi · 4 min · North Robertson Street

  13. 13

    Turn straight

    4.5 mi · 10 min

  14. 14

    Arrive at your destination

    0 m · 1 sec · West Judge Perez Drive

Car Route Details

A richer read on the saved driving route between Lafayette and Chalmette.

OSRM road route
Drive Character

Highway-focused drive

Most of the mileage stays on named highways, so the important moments are ramps, exits, merges, and the final local approach.

Directions
14 steps
5 turns on the saved route
Ramps & Exits
3
1 merges, 2 ramps or exits
Navigation Density
9.9 / 100 mi
Decision points by distance
Main Roads
I 10 East
127 mi · 90%
Slidell
3.9 mi · 3%
Northeast Evangeline Thruway
1.87 mi · 1%
North Robertson Street
1.59 mi · 1%
Elysian Fields Avenue
1.22 mi · 1%
Rue Jefferson
0.31 mi
Longest Stretch

I 10 East

Merge slight left

127 mi · 02h 25m

Route Summary

A quick read on whether this route feels easy, ambitious, or worth planning around.

Trip Read

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.

Drive Time
02h 53m
Day trip friendly
Same-Day Return
05h 46m
Round-trip wheel time
Road vs Air
+17 mi
124.3 mi direct line
Halfway Stop
Oak Grove
01h 26m from Lafayette
Leave By
12:44 PM CDT
Morning start is best
Weather Watch

Mostly Sunny leaving Lafayette and Mostly Clear near Chalmette.

Trip Questions

Direct answers travelers usually want before committing to the drive.

How long does it take to drive from Lafayette to Chalmette?

The road trip is about 141.3 miles (227.4 km) and usually takes 02h 53m 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 70.6 miles from Lafayette and 70.7 miles from Chalmette.

How much longer is the road route than the straight-line distance?

The direct path is about 124.3 miles (200.1 km), while the road route adds roughly 17 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 12:44 PM CDT.

How much will gas cost for this route?

Using about 28.3 MPG, regular gas is estimated at $18.90 one way or $37.79 round trip. Estimated CO2 is about 44.3 kg one way.

What should you check before leaving?

Before you leave, expect Mostly Sunny around Lafayette and Mostly Clear near Chalmette.

Stop Ideas Near Oak Grove

Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.

Mid-route Guidance
These suggestions come from reviewed places and nearby services around Oak Grove and the surrounding midpoint area.
Port Vincent Clerks Office
Practical stop 9.2 mi away

Port Vincent Clerks Office

Denham Springs , LA
18235 LA-16, Denham Springs, LA 70726
Garbage collection service
City of Donaldsonville
Meeting point 13.4 mi away

City of Donaldsonville

Donaldsonville , LA
609 Railroad Ave, Donaldsonville, LA 70346
Rating 4.7/5 7 reviews City Hall
Stop photo coming soon
Nearby stop 13.7 mi away

City of Baton Rouge Fire Station 15

Baton Rouge , LA
3150 Brightside Dr, Baton Rouge, LA 70820
Rating 3.5/5 2 reviews Fire station

Transit and Meeting Points

Useful pickup, handoff, or rendezvous points close to Oak Grove.

BUS

Baton Rouge, Louisiana

24 mi away
1253 Florida St.
RAIL

Hammond

54 mi away
404 N.E. Railroad Ave.
RAIL

Schriever

65 mi away
Hwy 20 and Hwy 24
RAIL

New Iberia

89 mi away
West Washington St.

Flight Path Map

This map shows the direct air route between Lafayette and Chalmette. Straight-line distance: 124.35 mi (200.13 km).

Lafayette

#1 Lafayette

The third most populous city in Acadiana, Louisiana.

Population126,535
Coordinates30.2240900, -92.0198400
Altitude11
CountryUnited States
Chalmette

#2 Chalmette

Census designated place

Population16,751
Coordinates29.9429600, -89.9653700
Altitude1
CountryUnited States
Start: Lafayette (-92.01984, 30.22409)
End: Chalmette (-89.96537, 29.94296)

Estimated Travel Time

Distance: 227 km by road

SpeedTime
30 mph (48.3 km/h)04h 42m
40 mph (64.37 km/h)03h 31m
50 mph (80.47 km/h)02h 49m
60 mph (96.56 km/h)02h 21m
70 mph (112.65 km/h)02h 01m
80 mph (129 km/h)01h 45m

Fuel, Round Trip and CO2

Estimated fuel cost and emissions for this route.

One-way fuel
4.99 gal
18.88 L · about $18.90
Round trip
$37.79
9.98 gal · 37.76 L
Estimated CO2
44.3 kg one way
Round trip: 88.7 kg / 196 lb CO2, using regular gasoline.
Fuel$/galOne wayRound trip
Regular gas $3.79 $18.90 $37.79
Mid-grade $4.26 $21.25 $42.50
Premium $4.63 $23.08 $46.16
Diesel $5.42 $27.02 $54.04

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

There is no time difference between Lafayette and Chalmette. The current time is 20:17:06.

Distance to Other Cities

Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.

How did we calculate? Place names are translated into coordinates. The Haversine formula calculates straight-line distance; driving distance uses road network data.