How far is Unalaska from Chicago?
There are several ways to calculate distances between Chicago and Unalaska. Here are two common methods:Vincenty's formula (applied above)
- 3546.893 miles
- 5708.170 kilometers
- 3082.165 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
- 3537.053 miles
- 5692.335 kilometers
- 3073.615 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).
Estimated flight time from Chicago O'Hare International Airport (ORD) to Unalaska Airport (DUT) is 7 hours 12 minutes.
Time difference and current local times
The time difference between Chicago and Unalaska is 4 hours. Unalaska is 4 hours behind Chicago.
Carbon dioxide emissions
Estimated CO2 emissions per passenger is 406 kg (896 pounds).
Chicago to Unalaska flight path
Shortest flight path between Chicago O'Hare International Airport (ORD) and Unalaska Airport (DUT).
Frequent Flyer Miles Calculator
Chicago (ORD) → Unalaska (DUT).