How far is Ketchikan from Spokane?
There are several ways to calculate distances between Spokane and Ketchikan. Here are two common methods:Vincenty's formula (applied above)
- 809.886 miles
- 1303.385 kilometers
- 703.772 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
- 808.246 miles
- 1300.746 kilometers
- 702.347 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 Spokane International Airport (GEG) to Ketchikan International Airport (KTN) is 2 hours 2 minutes.
Time difference and current local times
The time difference between Spokane and Ketchikan is 1 hour. Ketchikan is 1 hour behind Spokane.
Carbon dioxide emissions
Estimated CO2 emissions per passenger is 136 kg (299 pounds).
Spokane to Ketchikan flight map.
Frequent Flyer Miles Calculator
Spokane (GEG) → Ketchikan (KTN).