Map of flight path and driving directions from Chicago to Ketchikan.
Shortest flight path between Chicago O'Hare International Airport (ORD) and Ketchikan International Airport (KTN).
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).
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 236 kg (520 pounds).
Frequent Flyer Miles Calculator
Chicago (ORD) → Ketchikan (KTN).