# 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
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
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.

CST

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?