# Distance between Lafayette, LA (LFT) and St Augustine, FL (UST)

Flight distance from Lafayette to St Augustine (Lafayette Regional Airport – Northeast Florida Regional Airport) is 638 miles / 1027 kilometers / 554 nautical miles. Estimated flight time is 1 hour 42 minutes.

Driving distance from Lafayette (LFT) to St Augustine (UST) is 691 miles / 1112 kilometers and travel time by car is about 11 hours 58 minutes.

## Map of flight path and driving directions from Lafayette to St Augustine.

Shortest flight path between Lafayette Regional Airport (LFT) and Northeast Florida Regional Airport (UST).

## How far is St Augustine from Lafayette?

There are several ways to calculate distances between Lafayette and St Augustine. Here are two common methods:

Vincenty's formula (applied above)
• 637.842 miles
• 1026.508 kilometers
• 554.270 nautical miles

Vincenty's formula calculates the distance between latitude/longitude points on the earth’s surface, using an ellipsoidal model of the earth.

Haversine formula
• 636.596 miles
• 1024.501 kilometers
• 553.187 nautical miles

The haversine formula calculates the distance between latitude/longitude points assuming a spherical earth (great-circle distance – the shortest distance between two points).

## Airport information

A Lafayette Regional Airport
City: Lafayette, LA
Country: United States
IATA Code: LFT
ICAO Code: KLFT
Coordinates: 30°12′19″N, 91°59′15″W

B Northeast Florida Regional Airport
City: St Augustine, FL
Country: United States
IATA Code: UST
ICAO Code: KSGJ
Coordinates: 29°57′33″N, 81°20′23″W

## Time difference and current local times

The time difference between Lafayette and St Augustine is 1 hour. St Augustine is 1 hour ahead of Lafayette.

CDT

EDT

## Carbon dioxide emissions

Estimated CO2 emissions per passenger is 117 kg (259 pounds).

## Frequent Flyer Miles Calculator

Lafayette (LFT) → St Augustine (UST).

Distance:
638
Elite level bonus:
0
Booking class bonus:
0

### In total

Total frequent flyer miles:
638

Round trip?