Map of flight path and driving directions from Redmond to Friday Harbor.
Shortest flight path between Roberts Field (RDM) and Friday Harbor Airport (FRD).
How far is Friday Harbor from Redmond?
There are several ways to calculate distances between Redmond and Friday Harbor. Here are two common methods:Vincenty's formula (applied above)
- 308.068 miles
- 495.788 kilometers
- 267.704 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
- 308.086 miles
- 495.816 kilometers
- 267.719 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
There is no time difference between Redmond and Friday Harbor.
Friday Harbor, WA
Carbon dioxide emissions
Estimated CO2 emissions per passenger is 70 kg (155 pounds).
Frequent Flyer Miles Calculator
Redmond (RDM) → Friday Harbor (FRD).