Air Miles Calculator

Distance between Seattle, WA (BFI) and Ketchikan, AK (KTN)

Distance from Seattle to Ketchikan (Boeing Field – Ketchikan International Airport) is 675 miles / 1087 kilometers / 587 nautical miles.

How far is Ketchikan from Seattle?

There are several ways to calculate distances between Seattle and Ketchikan. Here are two common methods:

Vincenty's formula (applied above)
  • 675.412 miles
  • 1086.971 kilometers
  • 586.917 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
  • 674.410 miles
  • 1085.357 kilometers
  • 586.046 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).

Flight duration

Estimated flight time from Boeing Field (BFI) to Ketchikan International Airport (KTN) is 1 hour 46 minutes.

Time difference and current local times

The time difference between Seattle and Ketchikan is 1 hour. Ketchikan is 1 hour behind Seattle.

Time Difference

Seattle
Ketchikan

Seattle, WA

 PDT

Ketchikan, AK

 AKDT

Carbon dioxide emissions

Estimated CO2 emissions per passenger is 122 kg (269 pounds).

Airport information


A Boeing Field
City: Seattle, WA
Country: United States Flag of United States
IATA Code: BFI
ICAO Code: KBFI
Coordinates: 47°31′47″N, 122°18′7″W

B Ketchikan International Airport
City: Ketchikan, AK
Country: United States Flag of United States
IATA Code: KTN
ICAO Code: PAKT
Coordinates: 55°21′19″N, 131°42′38″W

Seattle to Ketchikan flight path

Shortest flight path between Boeing Field (BFI) and Ketchikan International Airport (KTN).

Frequent Flyer Miles Calculator

Seattle (BFI) → Ketchikan (KTN).

Elite level bonus (%):
Booking class bonus (%):
Air miles:
675
Elite level bonus:
0
Booking class bonus:
0

In total

Total frequent flyer miles:
675

Round trip?