Air Miles Calculator

Distance between Lafayette, LA (LFT) and Watertown, SD (ATY)

Flight distance from Lafayette to Watertown (Lafayette Regional Airport – Watertown Regional Airport) is 1053 miles / 1694 kilometers / 915 nautical miles. Estimated flight time is 2 hours 29 minutes.

Driving distance from Lafayette (LFT) to Watertown (ATY) is 1235 miles / 1987 kilometers and travel time by car is about 21 hours 13 minutes.

Map of flight path and driving directions from Lafayette to Watertown.

Shortest flight path between Lafayette Regional Airport (LFT) and Watertown Regional Airport (ATY).

How far is Watertown from Lafayette?

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

Vincenty's formula (applied above)
  • 1052.723 miles
  • 1694.193 kilometers
  • 914.791 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
  • 1054.355 miles
  • 1696.819 kilometers
  • 916.209 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 Watertown Regional Airport
City: Watertown, SD
Country: United States Flag of United States
IATA Code: ATY
ICAO Code: KATY
Coordinates: 44°54′50″N, 97°9′16″W

Time difference and current local times

There is no time difference between Lafayette and Watertown.

Time Difference

Lafayette, LA

 CST

Watertown, SD

 CST

Carbon dioxide emissions

Estimated CO2 emissions per passenger is 154 kg (340 pounds).

Frequent Flyer Miles Calculator

Lafayette (LFT) → Watertown (ATY).

Distance:
1053
Elite level bonus:
0
Booking class bonus:
0

In total

Total frequent flyer miles:
1053

Round trip?