How far is Ketchikan from Chicago?
There are several ways to calculate distances between Chicago and Ketchikan. Here are two common methods:Vincenty's formula (applied above)
- 2161.856 miles
- 3479.170 kilometers
- 1878.601 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
- 2156.559 miles
- 3470.645 kilometers
- 1873.998 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 O'Hare International Airport (ORD) to Ketchikan International Airport (KTN) is 4 hours 35 minutes.
Time difference and current local times
The time difference between Chicago and Ketchikan is 3 hours. Ketchikan is 3 hours behind Chicago.
Carbon dioxide emissions
Estimated CO2 emissions per passenger is 240 kg (529 pounds).
Chicago to Ketchikan flight map.
Frequent Flyer Miles Calculator
Chicago (ORD) → Ketchikan (KTN).