Map of flight path and driving directions from Redmond to Washington D.C..
Shortest flight path between Roberts Field (RDM) and Ronald Reagan Washington National Airport (DCA).
How far is Washington D.C. from Redmond?
There are several ways to calculate distances between Redmond and Washington D.C.. Here are two common methods:Vincenty's formula (applied above)
- 2288.845 miles
- 3683.539 kilometers
- 1988.952 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
- 2283.154 miles
- 3674.380 kilometers
- 1984.006 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).
Time difference and current local times
The time difference between Redmond and Washington D.C. is 3 hours. Washington D.C. is 3 hours ahead of Redmond.
Carbon dioxide emissions
Estimated CO2 emissions per passenger is 251 kg (553 pounds).
Frequent Flyer Miles Calculator
Redmond (RDM) → Washington D.C. (DCA).