Nonstop flight route between Adak Island, Alaska, United States and Port Williams, Kodiak Island Borough, Alaska, United States:
Departure Airport:
(51°52'41"N by 176°38'45"W)
Arrival Airport:
(58°29'24"N by 152°34'55"W)
Distance from ADK to KPR:
1,045.81 miles (1,683.07 km)
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Jump to:
- About this route
- ADK Airport Information
- KPR Airport Information
- Facts about ADK
- Facts about KPR
- Map of Nearest Airports to ADK
- List of Nearest Airports to ADK
- Map of Furthest Airports from ADK
- List of Furthest Airports from ADK
- Map of Nearest Airports to KPR
- List of Nearest Airports to KPR
- Map of Furthest Airports from KPR
- List of Furthest Airports from KPR
About this route:
A direct, nonstop flight between Adak Airport (ADK), Adak Island, Alaska, United States and Port Williams Seaplane Base (KPR), Port Williams, Kodiak Island Borough, Alaska, United States would travel a Great Circle distance of 1,046 miles (or 1,683 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 Adak Airport and Port Williams Seaplane Base, the route shown on this map most likely still appears to be a straight line.
Departure Airport Information:
| IATA / ICAO Codes: | ADK / PADK |
| Airport Name: | Adak Airport |
| Location: | Adak Island, Alaska, United States |
| GPS Coordinates: | 51°52'41"N by 176°38'45"W |
| Area Served: | Adak Island, Alaska |
| Operator/Owner: | Alaska DOT&PF - Central Region |
| Airport Type: | Public |
| Elevation: | 18 feet (5 meters) |
| # of Runways: | 2 |
| View all routes: | Routes from ADK |
| More Information: | ADK Maps & Info |
Arrival Airport Information:
| IATA / ICAO Codes: | KPR / |
| Airport Name: | Port Williams Seaplane Base |
| Location: | Port Williams, Kodiak Island Borough, Alaska, United States |
| GPS Coordinates: | 58°29'24"N by 152°34'55"W |
| Area Served: | Port Williams, Alaska |
| Operator/Owner: | Washington Fish & Oyster |
| Airport Type: | Public |
| Elevation: | 0 feet (0 meters) |
| # of Runways: | 1 |
| View all routes: | Routes from KPR |
| More Information: | KPR Maps & Info |
Facts about Adak Airport (ADK):
- Because of Adak Airport's relatively low elevation of 18 feet, planes can take off or land at Adak 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.
- Following the war, the AAF turned Adak over to the Navy who established anti-submarine warfare base there.
- Adak Airport resides at elevation of 18 feet above mean sea level.
- Adak Airport (ADK) has 2 runways.
- The closest airport to Adak Airport (ADK) is Atka Airport (AKB), which is located 106 miles (171 kilometers) ENE of ADK.
- The furthest airport from Adak Airport (ADK) is Cape Town International Airport (CPT), which is located 10,985 miles (17,679 kilometers) away in Cape Town, South Africa.
Facts about Port Williams Seaplane Base (KPR):
- Because of Port Williams Seaplane Base's relatively low elevation of 0 feet, planes can take off or land at Port Williams Seaplane Base 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.
- The closest airport to Port Williams Seaplane Base (KPR) is Kitoi Bay Seaplane Base (KKB), which is located 22 miles (35 kilometers) SSE of KPR.
- The furthest airport from Port Williams Seaplane Base (KPR) is Port Elizabeth International Airport (PLZ), which is located 10,742 miles (17,287 kilometers) away in Port Elizabeth, South Africa.
- Port Williams Seaplane Base (KPR) currently has only 1 runway.
- Port Williams Seaplane Base has one seaplane landing area designated E/W with a water surface measuring 10,000 by 4,000 feet.
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 106.34 miles (171.14 km) ENE | Atka Airport (AKB) | Atka, Alaska, United States |     |
| 2 | 336.57 miles (541.65 km) ENE | Nikolski Air Station (IKO) | Nikolski, Alaska, United States | |
| 3 | 394.42 miles (634.75 km) WNW | Eareckson Air Station (SYA) | Shemya, Alaska, United States | |
| 4 | 429.63 miles (691.43 km) NE | St. George Airport (STG) | St. George, Alaska, United States | |
| 5 | 434.18 miles (698.74 km) WNW | Casco Cove Coast Guard Station (ATU) | Attu Island, Alaska, United States | |
| 6 | 443.19 miles (713.24 km) ENE | Unalaska Airport (DUT) | Unalaska, Alaska, United States | |
| 7 | 446.73 miles (718.95 km) NNE | St. Paul Island Airport (SNP) | St. Paul Island, Alaska, United States | |
| 8 | 477.38 miles (768.27 km) ENE | Akutan Seaplane Base (KQA) | Akutan, Alaska, United States | |
| 9 | 581.92 miles (936.51 km) ENE | False Pass Airport (KFP) | False Pass, Alaska, United States | |
| 10 | 603.62 miles (971.42 km) ENE | Pauloff Harbor Seaplane Base (KPH) | Sanak Island, Alaska, United States | |
| 11 | 614.76 miles (989.36 km) ENE | Cold Bay Airport (CDB) | Cold Bay, Alaska, United States | |
| 12 | 630.55 miles (1,014.77 km) ENE | King Cove Airport (KVC) | King Cove, Alaska, United States | |
| 13 | 689.42 miles (1,109.51 km) ENE | Nelson Lagoon Airport (NLG) | Nelson Lagoon, Alaska, United States | |
| 14 | 700.58 miles (1,127.47 km) ENE | Sand Point Airport (SDP) | Sand Point, Alaska, United States | |
| 15 | 708.16 miles (1,139.68 km) NNE | Mekoryuk Airport (MYU) | Mekoryuk, Alaska, United States | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 10,985.34 miles (17,679.15 km) SW | Cape Town International Airport (CPT) | Cape Town, South Africa | |
| 2 | 10,881.25 miles (17,511.64 km) SW | George Airport (GRJ) | George, South Africa | |
| 3 | 10,778.05 miles (17,345.55 km) SW | Port Elizabeth International Airport (PLZ) | Port Elizabeth, South Africa | |
| 4 | 10,749.72 miles (17,299.96 km) SSW | Kleinsee Airport (KLZ) | Kleinzee, South Africa | |
| 5 | 10,711.57 miles (17,238.55 km) SW | Port Alfred Airport (AFD) | Port Alfred, South Africa | |
| 6 | 10,689.19 miles (17,202.54 km) SSW | Alexander Bay Airport (ALJ) | Alexander Bay, South Africa | |
| 7 | 10,685.68 miles (17,196.89 km) SSW | Aggeneys Airport (AGZ) | Aggeneys, South Africa | |
| 8 | 10,685.67 miles (17,196.88 km) SSW | Wild Coast Sun Airport (MZF) | Mzamba, South Africa | |
| 9 | 10,650.66 miles (17,140.53 km) SW | East London Airport (ELS) | East London, South Africa | |
| 10 | 10,607.58 miles (17,071.20 km) SSW | Karasburg Airport (KAS) | Karasburg, Namibia | |
| 11 | 10,589.31 miles (17,041.80 km) SSW | Lüderitz Airport (LUD) | Luderitz, Namibia | |
| 12 | 10,570.50 miles (17,011.53 km) SW | Upington Airport (UTN) | Upington, South Africa | |
| 13 | 10,537.93 miles (16,959.11 km) SW | Mthatha Airport (UTT) | Mthatha, South Africa | |
| 14 | 10,524.48 miles (16,937.47 km) SSW | Keetmanshoop Airport (KMP) | Keetmanshoop, Namibia | |
| 15 | 10,499.70 miles (16,897.59 km) SW | Kimberley Airport (KIM) | Kimberley, South Africa | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 22.05 miles (35.49 km) SSE | Kitoi Bay Seaplane Base (KKB) | Kitoi Bay, Alaska, United States | |
| 2 | 38.09 miles (61.30 km) S | Ouzinkie Airport (KOZ) | Ouzinkie, Alaska, United States | |
| 3 | 42.14 miles (67.81 km) SSW | Port Bailey Seaplane Base (KPY) | Port Bailey, Kodiak Island Borough, Alaska, United States | |
| 4 | 42.87 miles (69.00 km) SSW | Port Lions Airport (ORI) | Port Lions, Alaska, United States | |
| 5 | 47.88 miles (77.05 km) S | Kodiak Municipal Airport (KDK) | Kodiak, Alaska, United States | |
| 6 | 51.25 miles (82.48 km) S | Kodiak Benny Benson State Airport (ADQ) | Kodiak, Alaska, United States | |
| 7 | 59.00 miles (94.96 km) SSW | San Juan (Uganik) Seaplane Base (UGI) | Uganik Island, United States | |
| 8 | 60.98 miles (98.13 km) SW | West Point Village Seaplane Base (KWP) | West Point, Kodiak Island Borough, Alaska, United States | |
| 9 | 64.02 miles (103.02 km) NNE | Nanwalek Airport (formerly English Bay Airport) (KEB) | Nanwalek (English Bay), Alaska, United States | |
| 10 | 65.07 miles (104.71 km) NNE | Port Graham Airport (PGM) | Port Graham, Alaska, United States | |
| 11 | 72.86 miles (117.26 km) NNE | Seldovia Airport (SOV) | Seldovia, Alaska, United States | |
| 12 | 77.47 miles (124.67 km) SW | Zachar Bay Seaplane Base (KZB) | Zachar Bay, Alaska, United States | |
| 13 | 83.42 miles (134.24 km) SW | Larsen Bay Airport (KLN) | Larsen Bay, Alaska, United States | |
| 14 | 83.63 miles (134.58 km) SSW | Amook Bay Seaplane Base (AOS) | Amook Bay, Alaska, United States | |
| 15 | 88.97 miles (143.18 km) NNE | Homer Airport (HOM) | Homer, Alaska, United States | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 10,741.59 miles (17,286.87 km) S | Port Elizabeth International Airport (PLZ) | Port Elizabeth, South Africa | |
| 2 | 10,729.25 miles (17,267.01 km) S | George Airport (GRJ) | George, South Africa | |
| 3 | 10,713.72 miles (17,242.02 km) S | Port Alfred Airport (AFD) | Port Alfred, South Africa | |
| 4 | 10,694.34 miles (17,210.82 km) SSE | Cape Town International Airport (CPT) | Cape Town, South Africa | |
| 5 | 10,677.93 miles (17,184.42 km) S | East London Airport (ELS) | East London, South Africa | |
| 6 | 10,574.24 miles (17,017.54 km) S | Mthatha Airport (UTT) | Mthatha, South Africa | |
| 7 | 10,522.73 miles (16,934.64 km) S | Margate Airport (MGH) | Margate, KwaZulu-Natal, South Africa | |
| 8 | 10,459.91 miles (16,833.56 km) S | Lebakeng Airport (LEF) | Lebakeng, Lesotho | |
| 9 | 10,456.92 miles (16,828.75 km) S | Semonkong Airport (SOK) | Semonkong, Lesotho | |
| 10 | 10,454.55 miles (16,824.93 km) S | Mafeteng Airport (MFC) | Mafeteng, Lesotho | |
| 11 | 10,450.94 miles (16,819.11 km) S | Lesobeng Airport (LES) | Lesobeng, Lesotho | |
| 12 | 10,438.88 miles (16,799.71 km) S | Pietermaritzburg Airport (PZB) | Pietermaritzburg, South Africa | |
| 13 | 10,434.14 miles (16,792.07 km) S | King Shaka International (DUR) | Durban, KwaZulu-Natal, South Africa | |
| 14 | 10,431.16 miles (16,787.29 km) S | Moshoeshoe I International Airport (MSU) | Maseru, Lesotho | |
| 15 | 10,417.16 miles (16,764.75 km) S | Mokhotlong Airport (MKH) | Mokhotlong, Lesotho | |