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).
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..
Carbon dioxide emissions
Estimated CO2 emissions per passenger is 180 kg (397 pounds).
Frequent Flyer Miles Calculator
Washington D.C. (DCA) → Laredo (LRD).