Nonstop flight route between Alamosa, Colorado, United States and Ketchikan, Alaska, United States:
Departure Airport:
(37°26'6"N by 105°51'59"W)
Arrival Airport:
(55°21'15"N by 131°42'39"W)
Distance from ALS to KTN:
1,727.03 miles (2,779.37 km)
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- About this route
- ALS Airport Information
- KTN Airport Information
- Facts about ALS
- Facts about KTN
- Map of Nearest Airports to ALS
- List of Nearest Airports to ALS
- Map of Furthest Airports from ALS
- List of Furthest Airports from ALS
- Map of Nearest Airports to KTN
- List of Nearest Airports to KTN
- Map of Furthest Airports from KTN
- List of Furthest Airports from KTN
About this route:
A direct, nonstop flight between San Luis Valley Regional Airport (ALS), Alamosa, Colorado, United States and Ketchikan International Airport (KTN), Ketchikan, Alaska, United States would travel a Great Circle distance of 1,727 miles (or 2,779 kilometers).
A Great Circle is the shortest distance between 2 points on a sphere. Because most world maps are flat (but the Earth is round), the route of the shortest distance between 2 points on the Earth will often appear curved when viewed on a flat map, especially for long distances. If you were to simply draw a straight line on a flat map and measure a very long distance, it would likely be much further than if you were to lay a string between those two points on a globe. Because of the relatively short distance between San Luis Valley Regional Airport and Ketchikan International Airport, the route shown on this map most likely still appears to be a straight line.
Departure Airport Information:
| IATA / ICAO Codes: | ALS / KALS |
| Airport Names: |
|
| Location: | Alamosa, Colorado, United States |
| GPS Coordinates: | 37°26'6"N by 105°51'59"W |
| Area Served: | Alamosa, Colorado |
| Operator/Owner: | City and County of Alamosa |
| Airport Type: | Public |
| Elevation: | 7539 feet (2,298 meters) |
| # of Runways: | 2 |
| View all routes: | Routes from ALS |
| More Information: | ALS Maps & Info |
Arrival Airport Information:
| IATA / ICAO Codes: | KTN / PAKT |
| Airport Name: | Ketchikan International Airport |
| Location: | Ketchikan, Alaska, United States |
| GPS Coordinates: | 55°21'15"N by 131°42'39"W |
| Area Served: | Ketchikan, Alaska |
| Operator/Owner: | State of Alaska DOT&PF – Southeastern Region |
| Airport Type: | Public |
| Elevation: | 89 feet (27 meters) |
| # of Runways: | 2 |
| View all routes: | Routes from KTN |
| More Information: | KTN Maps & Info |
Facts about San Luis Valley Regional Airport (ALS):
- San Luis Valley Regional Airport (ALS) has 2 runways.
- The airport covers 1,700 acres at an elevation of 7,539 feet.
- Because of San Luis Valley Regional Airport's high elevation of 7,539 feet, planes must typically fly at a faster airspeed in order to takeoff or land at ALS. Combined with a high temperature, this could make ALS a "Hot & High" airport, where the air density is lower than it would otherwise be at sea level.
- The closest airport to San Luis Valley Regional Airport (ALS) is Stevens Field (FAA: PSO) (PGO), which is located 66 miles (106 kilometers) W of ALS.
- In addition to being known as "San Luis Valley Regional Airport", another name for ALS is "Bergman Field".
- The furthest airport from San Luis Valley Regional Airport (ALS) is Sir Gaëtan Duval Airport (RRG), which is located 11,054 miles (17,790 kilometers) away in Rodrigues Island, Mauritius.
Facts about Ketchikan International Airport (KTN):
- Ketchikan International Airport (KTN) has 2 runways.
- Around the World War II era, air service to Ketchikan was possible using an old military airfield on Annette Island.
- The furthest airport from Ketchikan International Airport (KTN) is Port Alfred Airport (AFD), which is located 10,613 miles (17,081 kilometers) away in Port Alfred, South Africa.
- Because of Ketchikan International Airport's relatively low elevation of 89 feet, planes can take off or land at Ketchikan International Airport at a lower air speed than at airports located at a higher elevation. This is because the air density is higher closer to sea level than it would otherwise be at higher elevations.
- Ketchikan International Airport is a state-owned, public-use airport located one nautical mile west of the central business district of Ketchikan, a city in Ketchikan Gateway Borough in the U.S.
- The closest airport to Ketchikan International Airport (KTN) is Ketchikan Harbor Seaplane Base (WFB), which is located only 2 miles (3 kilometers) ESE of KTN.
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 66.06 miles (106.31 km) W | Stevens Field (FAA: PSO) (PGO) | Pagosa Springs, Colorado, United States |     |
| 2 | 68.34 miles (109.99 km) S | Taos Regional Airport (TSM) | Taos, New Mexico, United States | |
| 3 | 76.88 miles (123.72 km) N | Harriet Alexander Field (SLT) | Salida, Colorado, United States | |
| 4 | 84.68 miles (136.27 km) E | Perry Stokes Airport (TAD) | Trinidad, Colorado, United States | |
| 5 | 89.15 miles (143.47 km) ESE | Raton Municipal Airport (RTN) | Raton, New Mexico, United States | |
| 6 | 95.22 miles (153.25 km) NE | Pueblo Memorial Airport (PUB) | Pueblo, Colorado, United States | |
| 7 | 95.60 miles (153.85 km) NW | Gunnison-Crested Butte Regional Airport (GUC) | Gunnison, Colorado, United States | |
| 8 | 97.85 miles (157.47 km) S | Ohkay Owingeh Airport (ESO) | Española, New Mexico, United States | |
| 9 | 105.58 miles (169.92 km) W | Durango–La Plata County Airport (DRO) | Durango, Colorado, United States | |
| 10 | 109.75 miles (176.62 km) SSW | Los Alamos Airport (LAM) | Los Alamos, New Mexico, United States | |
| 11 | 111.21 miles (178.97 km) W | Animas Air Park (AMK) | Durango, Colorado, United States | |
| 12 | 113.95 miles (183.38 km) NNE | City of Colorado Springs Municipal Airport (COS) | Colorado Springs, Colorado, United States | |
| 13 | 117.26 miles (188.72 km) WNW | Telluride Regional Airport (TEX) | Telluride, Colorado, United States | |
| 14 | 120.59 miles (194.07 km) NNE | United States Air Force Academy (AFF) | Colorado Springs, Colorado, United States | |
| 15 | 125.74 miles (202.36 km) N | Lake County Airport (LXV) | Leadville, Colorado, United States | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 11,053.98 miles (17,789.62 km) SSE | Sir Gaëtan Duval Airport (RRG) | Rodrigues Island, Mauritius | |
| 2 | 10,902.39 miles (17,545.65 km) SE | Sir Seewoosagur Ramgoolam International Airport (MRU) | Plaisance, Mauritius | |
| 3 | 10,859.12 miles (17,476.02 km) SE | Pierrefonds Airport (ZSE) | Saint-Pierre, Réunion | |
| 4 | 10,840.30 miles (17,445.72 km) SE | Roland Garros Airport (RUN) | St Denis, Réunion, France | |
| 5 | 10,626.52 miles (17,101.68 km) ESE | Tôlanaro Airport (FTU) | Tôlanaro, Madagascar | |
| 6 | 10,532.16 miles (16,949.83 km) ESE | Mananjary Airport (MNJ) | Mananjary, Madagascar | |
| 7 | 10,498.33 miles (16,895.38 km) ESE | Ampanihy Airport (AMP) | Ampanihy, Madagascar | |
| 8 | 10,482.56 miles (16,870.00 km) ESE | Fianarantsoa Airport (WFI) | Fianarantsoa, Madagascar | |
| 9 | 10,431.12 miles (16,787.21 km) SE | Toamasino Airport (TMM) | Toamasina, Madagascar | |
| 10 | 10,398.10 miles (16,734.09 km) SE | Sainte Marie Airport (SMS) | Île Sainte-Marie, Madagascar | |
| 11 | 10,377.06 miles (16,700.22 km) ESE | Ivato International Airport (TNR) | Antananarivo, Madagascar | |
| 12 | 10,342.64 miles (16,644.82 km) ESE | Manja Airport (MJA) | Manja, Menabe, Madagascar | |
| 13 | 10,318.93 miles (16,606.66 km) ESE | Andavadoaka Airport (DVD) | Andavadoaka, Toliara province, Atsimo-Andrefana region, Madagascar | |
| 14 | 10,316.24 miles (16,602.35 km) ESE | Miandrivazo Airport (ZVA) | Miandrivazo, Madagascar | |
| 15 | 10,309.35 miles (16,591.24 km) ESE | Morombe Airport (MXM) | Morombe, Madagascar | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 1.99 miles (3.21 km) ESE | Ketchikan Harbor Seaplane Base (WFB) | Ketchikan, Alaska, United States | |
| 2 | 16.28 miles (26.20 km) SSE | Metlakatla Seaplane Base (MTM) | Metlakatla, Annette Island, Alaska, United States | |
| 3 | 22.22 miles (35.76 km) SSE | Annette Island Airport (ANN) | Annette Island, Alaska, United States | |
| 4 | 37.00 miles (59.55 km) WNW | Hollis Clark Bay Seaplane Base (HYL) | Hollis, Alaska, United States | |
| 5 | 39.68 miles (63.87 km) NW | Thorne Bay Seaplane Base (KTB) | Thorne Bay, Alaska, United States | |
| 6 | 45.14 miles (72.64 km) WSW | Hydaburg Seaplane Base (HYG) | Hydaburg, Alaska, United States | |
| 7 | 55.68 miles (89.60 km) WNW | Klawock Airport (KLW) | Klawock, Alaska, United States | |
| 8 | 57.00 miles (91.73 km) W | Craig Seaplane Base (CGA) | Craig, Alaska, United States | |
| 9 | 60.36 miles (97.14 km) W | Waterfall Seaplane Base (KWF) | Waterfall, Alaska, United States | |
| 10 | 63.21 miles (101.73 km) NW | Coffman Cove Seaplane Base (KCC) | Coffman Cove, Alaska, United States | |
| 11 | 68.39 miles (110.06 km) WNW | Naukati Bay Seaplane Base (WNC) | Tuxekan Island, Alaska, United States | |
| 12 | 74.77 miles (120.33 km) WNW | Tokeen Seaplane Base (TKI) | Tokeen, Alaska, United States | |
| 13 | 76.05 miles (122.39 km) NW | North Whale Seaplane Base (WWP) | North Whale Pass, Alaska, United States | |
| 14 | 76.55 miles (123.19 km) ENE | Hyder Seaplane Base (WHD) | Hyder, Alaska, United States | |
| 15 | 78.35 miles (126.10 km) ENE | Stewart Aerodrome (ZST) | Stewart, British Columbia, Canada | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 10,613.47 miles (17,080.68 km) SE | Port Alfred Airport (AFD) | Port Alfred, South Africa | |
| 2 | 10,606.37 miles (17,069.25 km) SE | East London Airport (ELS) | East London, South Africa | |
| 3 | 10,604.66 miles (17,066.50 km) SE | Port Elizabeth International Airport (PLZ) | Port Elizabeth, South Africa | |
| 4 | 10,534.87 miles (16,954.19 km) SE | Mthatha Airport (UTT) | Mthatha, South Africa | |
| 5 | 10,530.27 miles (16,946.79 km) SE | Margate Airport (MGH) | Margate, KwaZulu-Natal, South Africa | |
| 6 | 10,511.29 miles (16,916.24 km) SE | George Airport (GRJ) | George, South Africa | |
| 7 | 10,467.00 miles (16,844.96 km) SSE | King Shaka International (DUR) | Durban, KwaZulu-Natal, South Africa | |
| 8 | 10,453.68 miles (16,823.52 km) SE | Pietermaritzburg Airport (PZB) | Pietermaritzburg, South Africa | |
| 9 | 10,430.20 miles (16,785.74 km) SSE | Richards Bay Airport (RCB) | Richards Bay, KwaZulu-Natal, South Africa | |
| 10 | 10,429.71 miles (16,784.96 km) SE | Lebakeng Airport (LEF) | Lebakeng, Lesotho | |
| 11 | 10,414.06 miles (16,759.76 km) SE | Lesobeng Airport (LES) | Lesobeng, Lesotho | |
| 12 | 10,412.20 miles (16,756.77 km) SE | Semonkong Airport (SOK) | Semonkong, Lesotho | |
| 13 | 10,400.60 miles (16,738.10 km) SE | Mokhotlong Airport (MKH) | Mokhotlong, Lesotho | |
| 14 | 10,389.89 miles (16,720.87 km) SE | Mafeteng Airport (MFC) | Mafeteng, Lesotho | |
| 15 | 10,389.67 miles (16,720.51 km) SE | Cape Town International Airport (CPT) | Cape Town, South Africa | |