Air Miles Calculator

Distance between Dayton, OH (DAY) and Washington D.C. (DCA)

Distance from Dayton International Airport to Ronald Reagan Washington National Airport is 391 miles / 630 kilometers / 340 nautical miles.

Calculations with different methods

Vincenty's formula (applied above)
  • 391.161 miles
  • 629.513 kilometers
  • 339.910 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
  • 390.251 miles
  • 628.048 kilometers
  • 339.119 nautical miles

The haversine formula calculates the distance between latitude/longitude points assuming a spherical earth (great-circle distance).

Flight duration

Estimated flight time from Dayton International Airport (DAY) to Ronald Reagan Washington National Airport (DCA) is 1 hour 14 minutes.

Time difference and current local times

There is no time difference between Dayton and Washington D.C..

Time Difference

Dayton
Washington D.C.

Dayton, OH

 EST

Washington D.C.

 EST

Airport information


A Dayton International Airport
City: Dayton, OH
Country: United States Flag of United States
IATA Code: DAY
ICAO Code: KDAY
Coordinates: 39°54′8″N, 84°13′9″W

B 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

Map

Flight map from Dayton to Washington D.C..

Frequent Flyer Miles Calculator

Dayton (DAY) → Washington D.C. (DCA).

Elite level bonus (%):
Booking class bonus (%):
Air miles:
391
Elite level bonus:
0
Booking class bonus:
0

In total

Total frequent flyer miles:
391

Round trip?