Air Miles Calculator

Distance between Houston, TX (HOU) and St Augustine, FL (UST)

Flight distance from Houston to St Augustine (Houston William P. Hobby Airport – Northeast Florida Regional Airport) is 837 miles / 1347 kilometers / 727 nautical miles. Estimated flight time is 2 hours 5 minutes.

Driving distance from Houston (HOU) to St Augustine (UST) is 905 miles / 1456 kilometers and travel time by car is about 15 hours 38 minutes.

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

Shortest flight path between Houston William P. Hobby Airport (HOU) and Northeast Florida Regional Airport (UST).

How far is St Augustine from Houston?

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

Vincenty's formula (applied above)
  • 837.118 miles
  • 1347.211 kilometers
  • 727.436 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
  • 835.494 miles
  • 1344.597 kilometers
  • 726.024 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 Houston William P. Hobby Airport
City: Houston, TX
Country: United States Flag of United States
IATA Code: HOU
ICAO Code: KHOU
Coordinates: 29°38′43″N, 95°16′44″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 Houston and St Augustine is 1 hour. St Augustine is 1 hour ahead of Houston.

Time Difference

Houston, TX

 CST

St Augustine, FL

 EST

Carbon dioxide emissions

Estimated CO2 emissions per passenger is 138 kg (305 pounds).

Frequent Flyer Miles Calculator

Houston (HOU) → St Augustine (UST).

Distance:
837
Elite level bonus:
0
Booking class bonus:
0

In total

Total frequent flyer miles:
837

Round trip?