Air Miles Calculator

Distance between Washington D.C. (DCA) and Laredo, TX (LRD)

Flight distance from Washington D.C. to Laredo (Ronald Reagan Washington National Airport – Laredo International Airport) is 1509 miles / 2428 kilometers / 1311 nautical miles. Estimated flight time is 3 hours 21 minutes.

Driving distance from Washington D.C. (DCA) to Laredo (LRD) is 1774 miles / 2855 kilometers and travel time by car is about 30 hours 3 minutes.

Map of flight path and driving directions from Washington D.C. to Laredo.

Shortest flight path between Ronald Reagan Washington National Airport (DCA) and Laredo International Airport (LRD).

How far is Laredo from Washington D.C.?

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

Vincenty's formula (applied above)
  • 1508.716 miles
  • 2428.043 kilometers
  • 1311.038 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
  • 1507.413 miles
  • 2425.946 kilometers
  • 1309.906 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 Ronald Reagan Washington National Airport
City: Washington D.C.
Country: United States Flag of United States
IATA Code: DCA
ICAO Code: KDCA
Coordinates: 38°51′7″N, 77°2′15″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 Washington D.C. and Laredo is 1 hour. Laredo is 1 hour behind Washington D.C..

Time Difference

Washington D.C.

 EST

Laredo, TX

 CST

Carbon dioxide emissions

Estimated CO2 emissions per passenger is 180 kg (397 pounds).

Frequent Flyer Miles Calculator

Washington D.C. (DCA) → Laredo (LRD).

Distance:
1509
Elite level bonus:
0
Booking class bonus:
0

In total

Total frequent flyer miles:
1509

Round trip?