Map of flight path and driving directions from Redmond to Decatur.
Shortest flight path between Roberts Field (RDM) and Decatur Airport (DEC).
How far is Decatur from Redmond?
There are several ways to calculate distances between Redmond and Decatur. Here are two common methods:Vincenty's formula (applied above)
- 1677.404 miles
- 2699.521 kilometers
- 1457.625 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
- 1673.221 miles
- 2692.789 kilometers
- 1453.989 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 Decatur is 2 hours. Decatur is 2 hours ahead of Redmond.
Carbon dioxide emissions
Estimated CO2 emissions per passenger is 191 kg (421 pounds).
Frequent Flyer Miles Calculator
Redmond (RDM) → Decatur (DEC).