Air Miles Calculator

Distance between Austin, TX (AUS) and St Augustine, FL (UST)

Flight distance from Austin to St Augustine (Austin–Bergstrom International Airport – Northeast Florida Regional Airport) is 978 miles / 1573 kilometers / 850 nautical miles. Estimated flight time is 2 hours 21 minutes.

Driving distance from Austin (AUS) to St Augustine (UST) is 1058 miles / 1703 kilometers and travel time by car is about 18 hours 15 minutes.

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

Shortest flight path between Austin–Bergstrom International Airport (AUS) and Northeast Florida Regional Airport (UST).

How far is St Augustine from Austin?

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

Vincenty's formula (applied above)
  • 977.593 miles
  • 1573.283 kilometers
  • 849.505 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
  • 975.680 miles
  • 1570.205 kilometers
  • 847.843 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 Austin–Bergstrom International Airport
City: Austin, TX
Country: United States Flag of United States
IATA Code: AUS
ICAO Code: KAUS
Coordinates: 30°11′40″N, 97°40′11″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 Austin and St Augustine is 1 hour. St Augustine is 1 hour ahead of Austin.

Time Difference

Austin, TX

 CDT

St Augustine, FL

 EDT

Carbon dioxide emissions

Estimated CO2 emissions per passenger is 149 kg (329 pounds).

Frequent Flyer Miles Calculator

Austin (AUS) → St Augustine (UST).

Distance:
978
Elite level bonus:
0
Booking class bonus:
0

In total

Total frequent flyer miles:
978

Round trip?