# Distance between Washington D.C. (DCA) and San Antonio, TX (SAT)

Flight distance from Washington D.C. to San Antonio (Ronald Reagan Washington National Airport – San Antonio International Airport) is 1381 miles / 2222 kilometers / 1200 nautical miles. Estimated flight time is 3 hours 6 minutes.

Driving distance from Washington D.C. (DCA) to San Antonio (SAT) is 1596 miles / 2569 kilometers and travel time by car is about 27 hours 23 minutes.

## Map of flight path and driving directions from Washington D.C. to San Antonio.

Shortest flight path between Ronald Reagan Washington National Airport (DCA) and San Antonio International Airport (SAT).

## How far is San Antonio from Washington D.C.?

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

Vincenty's formula (applied above)
• 1380.511 miles
• 2221.717 kilometers
• 1199.631 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
• 1378.887 miles
• 2219.103 kilometers
• 1198.220 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 San Antonio International Airport
City: San Antonio, TX
Country: United States
IATA Code: SAT
ICAO Code: KSAT
Coordinates: 29°32′1″N, 98°28′11″W

## Time difference and current local times

The time difference between Washington D.C. and San Antonio is 1 hour. San Antonio is 1 hour behind Washington D.C..

EDT

CDT

## Carbon dioxide emissions

Estimated CO2 emissions per passenger is 172 kg (379 pounds).

## Frequent Flyer Miles Calculator

Washington D.C. (DCA) → San Antonio (SAT).

Distance:
1381
Elite level bonus:
0
Booking class bonus:
0

### In total

Total frequent flyer miles:
1381

Round trip?