How far is St Augustine, FL, from Jacksonville, FL?

The distance between Jacksonville (Jacksonville International Airport) and St Augustine (Northeast Florida Regional Airport) is 42 miles / 68 kilometers / 37 nautical miles.

The driving distance from Jacksonville (JAX) to St Augustine (UST) is 47 miles / 76 kilometers, and travel time by car is about 1 hour 1 minutes.

Distance from Jacksonville to St Augustine

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

Vincenty's formula (applied above)

• 42.322 miles
• 68.111 kilometers
• 36.777 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

• 42.400 miles
• 68.236 kilometers
• 36.845 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 Jacksonville to St Augustine?

The estimated flight time from Jacksonville International Airport to Northeast Florida Regional Airport is 34 minutes.

What is the time difference between Jacksonville and St Augustine?

There is no time difference between Jacksonville and St Augustine.

Flight carbon footprint between Jacksonville International Airport (JAX) and Northeast Florida Regional Airport (UST)

On average, flying from Jacksonville to St Augustine generates about 31 kg of CO2 per passenger, and 31 kilograms equals 69 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.

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

See the map of the shortest flight path between Jacksonville International Airport (JAX) and Northeast Florida Regional Airport (UST).

Airport information

Origin	Jacksonville International Airport
City:	Jacksonville, FL
Country:	United States
IATA Code:	JAX
ICAO Code:	KJAX
Coordinates:	30°29′38″N, 81°41′16″W

Destination	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