Air Miles Calculator

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

Flight distance from Seattle to Ketchikan (Seattle Boeing Field – Ketchikan International Airport) is 675 miles / 1087 kilometers / 587 nautical miles. Estimated flight time is 1 hour 46 minutes.

Driving distance from Seattle (BFI) to Ketchikan (KTN) is 1123 miles / 1807 kilometers and travel time by car is about 26 hours 3 minutes.

Map of flight path and driving directions from Seattle to Ketchikan.

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

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).

Airport information


A Seattle 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

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, WA

 PST

Ketchikan, AK

 AKST

Carbon dioxide emissions

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

Frequent Flyer Miles Calculator

Seattle (BFI) → Ketchikan (KTN).

Distance:
675
Elite level bonus:
0
Booking class bonus:
0

In total

Total frequent flyer miles:
675

Round trip?