# 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
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
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..

EDT

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## 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?