Air Miles Calculator

Distance between Huntsville, AL (HSV) and St Augustine, FL (UST)

Flight distance from Huntsville to St Augustine (Huntsville International Airport – Northeast Florida Regional Airport) is 453 miles / 729 kilometers / 393 nautical miles. Estimated flight time is 1 hour 21 minutes.

Driving distance from Huntsville (HSV) to St Augustine (UST) is 573 miles / 922 kilometers and travel time by car is about 10 hours 36 minutes.

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

Shortest flight path between Huntsville International Airport (HSV) and Northeast Florida Regional Airport (UST).

How far is St Augustine from Huntsville?

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

Vincenty's formula (applied above)
  • 452.707 miles
  • 728.561 kilometers
  • 393.392 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
  • 452.872 miles
  • 728.827 kilometers
  • 393.535 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 Huntsville International Airport
City: Huntsville, AL
Country: United States Flag of United States
IATA Code: HSV
ICAO Code: KHSV
Coordinates: 34°38′13″N, 86°46′30″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 Huntsville and St Augustine is 1 hour. St Augustine is 1 hour ahead of Huntsville.

Time Difference

Huntsville, AL

 CST

St Augustine, FL

 EST

Carbon dioxide emissions

Estimated CO2 emissions per passenger is 92 kg (202 pounds).

Frequent Flyer Miles Calculator

Huntsville (HSV) → St Augustine (UST).

Distance:
453
Elite level bonus:
0
Booking class bonus:
0

In total

Total frequent flyer miles:
453

Round trip?