Map of flight path from Richmond to Unalaska.
Shortest flight path between Richmond International Airport (RIC) and Unalaska Airport (DUT).
How far is Unalaska from Richmond?
There are several ways to calculate distances between Richmond and Unalaska. Here are two common methods:Vincenty's formula (applied above)
- 4164.156 miles
- 6701.560 kilometers
- 3618.553 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
- 4153.556 miles
- 6684.500 kilometers
- 3609.341 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 Richmond and Unalaska is 5 hours. Unalaska is 5 hours behind Richmond.
Carbon dioxide emissions
Estimated CO2 emissions per passenger is 477 kg (1 051 pounds).
Frequent Flyer Miles Calculator
Richmond (RIC) → Unalaska (DUT).