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How far is St Augustine, FL, from Kalispell, MT?

The distance between Kalispell (Glacier Park International Airport) and St Augustine (Northeast Florida Regional Airport) is 2148 miles / 3457 kilometers / 1867 nautical miles.

The driving distance from Kalispell (FCA) to St Augustine (UST) is 2658 miles / 4278 kilometers, and travel time by car is about 47 hours 56 minutes.

Glacier Park International Airport – Northeast Florida Regional Airport

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2148
Miles
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3457
Kilometers
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1867
Nautical miles

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Distance from Kalispell to St Augustine

There are several ways to calculate the distance from Kalispell to St Augustine. Here are two standard methods:

Vincenty's formula (applied above)
  • 2148.172 miles
  • 3457.148 kilometers
  • 1866.711 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
  • 2145.942 miles
  • 3453.559 kilometers
  • 1864.773 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 Kalispell to St Augustine?

The estimated flight time from Glacier Park International Airport to Northeast Florida Regional Airport is 4 hours and 34 minutes.

Flight carbon footprint between Glacier Park International Airport (FCA) and Northeast Florida Regional Airport (UST)

On average, flying from Kalispell to St Augustine generates about 234 kg of CO2 per passenger, and 234 kilograms equals 517 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.

Map of flight path and driving directions from Kalispell to St Augustine

See the map of the shortest flight path between Glacier Park International Airport (FCA) and Northeast Florida Regional Airport (UST).

Airport information

Origin Glacier Park International Airport
City: Kalispell, MT
Country: United States Flag of United States
IATA Code: FCA
ICAO Code: KGPI
Coordinates: 48°18′37″N, 114°15′21″W
Destination 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