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How far is Laredo, TX, from St Augustine, FL?

The distance between St Augustine (Northeast Florida Regional Airport) and Laredo (Laredo International Airport) is 1111 miles / 1788 kilometers / 966 nautical miles.

The driving distance from St Augustine (UST) to Laredo (LRD) is 1214 miles / 1954 kilometers, and travel time by car is about 22 hours 27 minutes.

Northeast Florida Regional Airport – Laredo International Airport

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1111
Miles
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1788
Kilometers
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966
Nautical miles

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Distance from St Augustine to Laredo

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

Vincenty's formula (applied above)
  • 1111.110 miles
  • 1788.158 kilometers
  • 965.528 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
  • 1109.137 miles
  • 1784.983 kilometers
  • 963.814 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 St Augustine to Laredo?

The estimated flight time from Northeast Florida Regional Airport to Laredo International Airport is 2 hours and 36 minutes.

Flight carbon footprint between Northeast Florida Regional Airport (UST) and Laredo International Airport (LRD)

On average, flying from St Augustine to Laredo generates about 157 kg of CO2 per passenger, and 157 kilograms equals 347 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.

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

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

Airport information

Origin 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
Destination Laredo International Airport
City: Laredo, TX
Country: United States Flag of United States
IATA Code: LRD
ICAO Code: KLRD
Coordinates: 27°32′37″N, 99°27′41″W