Air Miles Calculator

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 Flag of 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 Flag of 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.

Time Difference

Lafayette, LA

 CST

St Augustine, FL

 EST

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?