Air Miles Calculator

Distance between Louisville, KY (SDF) and Laredo, TX (LRD)

Flight distance from Louisville to Laredo (Louisville International Airport – Laredo International Airport) is 1081 miles / 1740 kilometers / 940 nautical miles. Estimated flight time is 2 hours 32 minutes.

Driving distance from Louisville (SDF) to Laredo (LRD) is 1275 miles / 2052 kilometers and travel time by car is about 21 hours 19 minutes.

Map of flight path and driving directions from Louisville to Laredo.

Shortest flight path between Louisville International Airport (SDF) and Laredo International Airport (LRD).

How far is Laredo from Louisville?

There are several ways to calculate distances between Louisville and Laredo. Here are two common methods:

Vincenty's formula (applied above)
  • 1081.166 miles
  • 1739.968 kilometers
  • 939.507 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
  • 1081.246 miles
  • 1740.097 kilometers
  • 939.577 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 Louisville International Airport
City: Louisville, KY
Country: United States Flag of United States
IATA Code: SDF
ICAO Code: KSDF
Coordinates: 38°10′27″N, 85°44′9″W

B 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

Time difference and current local times

The time difference between Louisville and Laredo is 1 hour. Laredo is 1 hour behind Louisville.

Time Difference

Louisville, KY

 EDT

Laredo, TX

 CDT

Carbon dioxide emissions

Estimated CO2 emissions per passenger is 156 kg (343 pounds).

Frequent Flyer Miles Calculator

Louisville (SDF) → Laredo (LRD).

Distance:
1081
Elite level bonus:
0
Booking class bonus:
0

In total

Total frequent flyer miles:
1081

Round trip?