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How far is Alamosa, CO, from Ketchikan, AK?

The distance between Ketchikan (Ketchikan International Airport) and Alamosa (San Luis Valley Regional Airport) is 1729 miles / 2783 kilometers / 1503 nautical miles.

The driving distance from Ketchikan (KTN) to Alamosa (ALS) is 2364 miles / 3804 kilometers, and travel time by car is about 51 hours 2 minutes.

Ketchikan International Airport – San Luis Valley Regional Airport

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1729
Miles
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2783
Kilometers
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1503
Nautical miles

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Distance from Ketchikan to Alamosa

There are several ways to calculate the distance from Ketchikan to Alamosa. Here are two standard methods:

Vincenty's formula (applied above)
  • 1729.151 miles
  • 2782.799 kilometers
  • 1502.591 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
  • 1727.047 miles
  • 2779.413 kilometers
  • 1500.763 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 Alamosa?

The estimated flight time from Ketchikan International Airport to San Luis Valley Regional Airport is 3 hours and 46 minutes.

Flight carbon footprint between Ketchikan International Airport (KTN) and San Luis Valley Regional Airport (ALS)

On average, flying from Ketchikan to Alamosa generates about 195 kg of CO2 per passenger, and 195 kilograms equals 429 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 Alamosa

See the map of the shortest flight path between Ketchikan International Airport (KTN) and San Luis Valley Regional Airport (ALS).

Airport information

Origin 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
Destination San Luis Valley Regional Airport
City: Alamosa, CO
Country: United States Flag of United States
IATA Code: ALS
ICAO Code: KALS
Coordinates: 37°26′5″N, 105°52′1″W