How far is Watertown, SD, from Apia?

The distance between Apia (Faleolo International Airport) and Watertown (Watertown Regional Airport) is 6170 miles / 9929 kilometers / 5361 nautical miles.

Distance from Apia to Watertown

There are several ways to calculate the distance from Apia to Watertown. Here are two standard methods:

Vincenty's formula (applied above)

• 6169.554 miles
• 9928.935 kilometers
• 5361.196 nautical miles

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

Haversine formula

• 6175.259 miles
• 9938.116 kilometers
• 5366.153 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).

How long does it take to fly from Apia to Watertown?

The estimated flight time from Faleolo International Airport to Watertown Regional Airport is 12 hours and 10 minutes.

What is the time difference between Apia and Watertown?

The time difference between Apia and Watertown is 19 hours. Watertown is 19 hours behind Apia.

Flight carbon footprint between Faleolo International Airport (APW) and Watertown Regional Airport (ATY)

On average, flying from Apia to Watertown generates about 740 kg of CO2 per passenger, and 740 kilograms equals 1 631 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.

Map of flight path from Apia to Watertown

See the map of the shortest flight path between Faleolo International Airport (APW) and Watertown Regional Airport (ATY).

Airport information

Origin	Faleolo International Airport
City:	Apia
Country:	Samoa
IATA Code:	APW
ICAO Code:	NSFA
Coordinates:	13°49′47″S, 172°0′28″W

Destination	Watertown Regional Airport
City:	Watertown, SD
Country:	United States
IATA Code:	ATY
ICAO Code:	KATY
Coordinates:	44°54′50″N, 97°9′16″W