How far is Ketchikan, AK, from Seattle, WA?
The distance between Seattle (Seattle–Tacoma International Airport) and Ketchikan (Ketchikan International Airport) is 680 miles / 1094 kilometers / 591 nautical miles.
The driving distance from Seattle (SEA) to Ketchikan (KTN) is 1130 miles / 1818 kilometers, and travel time by car is about 27 hours 54 minutes.
Seattle–Tacoma International Airport – Ketchikan International Airport
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Distance from Seattle to Ketchikan
There are several ways to calculate the distance from Seattle to Ketchikan. Here are two standard methods:
Vincenty's formula (applied above)- 679.917 miles
- 1094.220 kilometers
- 590.831 nautical miles
Vincenty's formula calculates the distance between latitude/longitude points on the earth's surface using an ellipsoidal model of the planet.
Haversine formula- 678.919 miles
- 1092.615 kilometers
- 589.965 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).
How long does it take to fly from Seattle to Ketchikan?
The estimated flight time from Seattle–Tacoma International Airport to Ketchikan International Airport is 1 hour and 47 minutes.
What is the time difference between Seattle and Ketchikan?
The time difference between Seattle and Ketchikan is 1 hour. Ketchikan is 1 hour behind Seattle.
Flight carbon footprint between Seattle–Tacoma International Airport (SEA) and Ketchikan International Airport (KTN)
On average, flying from Seattle to Ketchikan generates about 122 kg of CO2 per passenger, and 122 kilograms equals 270 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.
Map of flight path and driving directions from Seattle to Ketchikan
See the map of the shortest flight path between Seattle–Tacoma International Airport (SEA) and Ketchikan International Airport (KTN).
Airport information
| Origin | Seattle–Tacoma International Airport |
|---|---|
| City: | Seattle, WA |
| Country: | United States  |
| IATA Code: | SEA |
| ICAO Code: | KSEA |
| Coordinates: | 47°26′56″N, 122°18′32″W |
| Destination | Ketchikan International Airport |
|---|---|
| City: | Ketchikan, AK |
| Country: | United States |
| IATA Code: | KTN |
| ICAO Code: | PAKT |
| Coordinates: | 55°21′19″N, 131°42′38″W |
Airlines flying from Seattle (SEA) to Ketchikan (KTN)
| Alaska Airlines |
| American Airlines |
| KLM |