# 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
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
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..

EST

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?