Air Miles Calculator

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

Flight distance from Dayton to Washington D.C. (Dayton International Airport – Ronald Reagan Washington National Airport) is 391 miles / 630 kilometers / 340 nautical miles. Estimated flight time is 1 hour 14 minutes.

Driving distance from Dayton (DAY) to Washington D.C. (DCA) is 467 miles / 752 kilometers and travel time by car is about 8 hours 31 minutes.

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

Shortest flight path between Dayton International Airport (DAY) and Ronald Reagan Washington National Airport (DCA).

How far is Washington D.C. from Dayton?

There are several ways to calculate distances between Dayton and Washington D.C.. Here are two common 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 – the shortest distance between two points).

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

Time difference and current local times

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

Time Difference

Dayton, OH

 EDT

Washington D.C.

 EDT

Carbon dioxide emissions

Estimated CO2 emissions per passenger is 83 kg (182 pounds).

Frequent Flyer Miles Calculator

Dayton (DAY) → Washington D.C. (DCA).

Distance:
391
Elite level bonus:
0
Booking class bonus:
0

In total

Total frequent flyer miles:
391

Round trip?