How far is Seattle, WA, from Ketchikan, AK?
The distance between Ketchikan (Ketchikan International Airport) and Seattle (Seattle–Tacoma International Airport) is 680 miles / 1094 kilometers / 591 nautical miles.
The driving distance from Ketchikan (KTN) to Seattle (SEA) is 1130 miles / 1818 kilometers, and travel time by car is about 27 hours 54 minutes.
Ketchikan International Airport – Seattle–Tacoma International Airport
Search flights
Distance from Ketchikan to Seattle
There are several ways to calculate the distance from Ketchikan to Seattle. 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 Ketchikan to Seattle?
The estimated flight time from Ketchikan International Airport to Seattle–Tacoma International Airport is 1 hour and 47 minutes.
What is the time difference between Ketchikan and Seattle?
The time difference between Ketchikan and Seattle is 1 hour. Seattle is 1 hour ahead of Ketchikan.
Flight carbon footprint between Ketchikan International Airport (KTN) and Seattle–Tacoma International Airport (SEA)
On average, flying from Ketchikan to Seattle 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 Ketchikan to Seattle
See the map of the shortest flight path between Ketchikan International Airport (KTN) and Seattle–Tacoma International Airport (SEA).
Airport information
| Origin | Ketchikan International Airport |
|---|---|
| City: | Ketchikan, AK |
| Country: | United States  |
| IATA Code: | KTN |
| ICAO Code: | PAKT |
| Coordinates: | 55°21′19″N, 131°42′38″W |
| Destination | 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 |
Airlines flying from Ketchikan (KTN) to Seattle (SEA)
| Alaska Airlines |
| American Airlines |
| KLM |