Nonstop flight route between Hydaburg, Alaska, United States and Rockland, Maine, United States:
Departure Airport:
(55°12'23"N by 132°49'41"W)
Arrival Airport:
(44°3'36"N by 69°5'57"W)
Distance from HYG to RKD:
2,845.67 miles (4,579.65 km)
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Jump to:
- About this route
- HYG Airport Information
- RKD Airport Information
- Facts about HYG
- Facts about RKD
- Map of Nearest Airports to HYG
- List of Nearest Airports to HYG
- Map of Furthest Airports from HYG
- List of Furthest Airports from HYG
- Map of Nearest Airports to RKD
- List of Nearest Airports to RKD
- Map of Furthest Airports from RKD
- List of Furthest Airports from RKD
About this route:
A direct, nonstop flight between Hydaburg Seaplane Base (HYG), Hydaburg, Alaska, United States and Knox County Regional Airport (RKD), Rockland, Maine, United States would travel a Great Circle distance of 2,846 miles (or 4,580 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 large distance between Hydaburg Seaplane Base and Knox County Regional Airport, the route shown on this map most likely appears curved because of this reason.
Try it at home! Get a globe and tightly lay a string between Hydaburg Seaplane Base and Knox County Regional Airport. You'll see that it will travel the same route of the red line on this map!
Departure Airport Information:
| IATA / ICAO Codes: | HYG / PAHY |
| Airport Name: | Hydaburg Seaplane Base |
| Location: | Hydaburg, Alaska, United States |
| GPS Coordinates: | 55°12'23"N by 132°49'41"W |
| Area Served: | Hydaburg, Alaska |
| Operator/Owner: | Alaska DOT&PF - Southeast Region |
| Airport Type: | Public |
| Elevation: | 0 feet (0 meters) |
| # of Runways: | 1 |
| View all routes: | Routes from HYG |
| More Information: | HYG Maps & Info |
Arrival Airport Information:
| IATA / ICAO Codes: | RKD / KRKD |
| Airport Name: | Knox County Regional Airport |
| Location: | Rockland, Maine, United States |
| GPS Coordinates: | 44°3'36"N by 69°5'57"W |
| Area Served: | Rockland, Maine |
| Operator/Owner: | Knox County |
| Airport Type: | Public |
| Elevation: | 56 feet (17 meters) |
| # of Runways: | 2 |
| View all routes: | Routes from RKD |
| More Information: | RKD Maps & Info |
Facts about Hydaburg Seaplane Base (HYG):
- Hydaburg Seaplane Base has one seaplane landing area designated E/W with a water surface measuring 5,000 by 2,000 feet.
- Hydaburg Seaplane Base (HYG) currently has only 1 runway.
- The furthest airport from Hydaburg Seaplane Base (HYG) is Port Alfred Airport (AFD), which is located 10,651 miles (17,140 kilometers) away in Port Alfred, South Africa.
- Because of Hydaburg Seaplane Base's relatively low elevation of 0 feet, planes can take off or land at Hydaburg 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 Hydaburg Seaplane Base (HYG) is Waterfall Seaplane Base (KWF), which is located only 17 miles (28 kilometers) WNW of HYG.
Facts about Knox County Regional Airport (RKD):
- After the war, it was operated by the City of Rockland until 1968.
- The closest airport to Knox County Regional Airport (RKD) is Wiscasset Airport (ISS), which is located 31 miles (50 kilometers) WSW of RKD.
- Because of Knox County Regional Airport's relatively low elevation of 56 feet, planes can take off or land at Knox County Regional 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.
- Knox County Regional Airport (RKD) has 2 runways.
- The furthest airport from Knox County Regional Airport (RKD) is Albany Airport (ALH), which is located 11,708 miles (18,842 kilometers) away in Albany, Western Australia, Australia.
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 17.49 miles (28.14 km) WNW | Waterfall Seaplane Base (KWF) | Waterfall, Alaska, United States |     |
| 2 | 21.22 miles (34.15 km) NNE | Hollis Clark Bay Seaplane Base (HYL) | Hollis, Alaska, United States | |
| 3 | 22.63 miles (36.42 km) NNW | Craig Seaplane Base (CGA) | Craig, Alaska, United States | |
| 4 | 27.53 miles (44.31 km) NNW | Klawock Airport (KLW) | Klawock, Alaska, United States | |
| 5 | 35.19 miles (56.63 km) NNE | Thorne Bay Seaplane Base (KTB) | Thorne Bay, Alaska, United States | |
| 6 | 45.14 miles (72.64 km) ENE | Ketchikan International Airport (KTN) | Ketchikan, Alaska, United States | |
| 7 | 46.83 miles (75.37 km) ENE | Ketchikan Harbor Seaplane Base (WFB) | Ketchikan, Alaska, United States | |
| 8 | 47.11 miles (75.82 km) NNW | Naukati Bay Seaplane Base (WNC) | Tuxekan Island, Alaska, United States | |
| 9 | 49.61 miles (79.84 km) E | Metlakatla Seaplane Base (MTM) | Metlakatla, Annette Island, Alaska, United States | |
| 10 | 50.90 miles (81.92 km) ESE | Annette Island Airport (ANN) | Annette Island, Alaska, United States | |
| 11 | 54.12 miles (87.09 km) NNW | Tokeen Seaplane Base (TKI) | Tokeen, Alaska, United States | |
| 12 | 55.85 miles (89.88 km) N | Coffman Cove Seaplane Base (KCC) | Coffman Cove, Alaska, United States | |
| 13 | 63.91 miles (102.85 km) N | North Whale Seaplane Base (WWP) | North Whale Pass, Alaska, United States | |
| 14 | 83.29 miles (134.05 km) NNW | Port Protection Seaplane Base (PPV) | Port Protection, Alaska, United States | |
| 15 | 84.95 miles (136.72 km) NNW | Point Baker Seaplane Base (KPB) | Point Baker, Alaska, United States | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 10,650.64 miles (17,140.50 km) SE | Port Alfred Airport (AFD) | Port Alfred, South Africa | |
| 2 | 10,642.94 miles (17,128.10 km) SE | Port Elizabeth International Airport (PLZ) | Port Elizabeth, South Africa | |
| 3 | 10,642.56 miles (17,127.50 km) SE | East London Airport (ELS) | East London, South Africa | |
| 4 | 10,569.68 miles (17,010.20 km) SE | Mthatha Airport (UTT) | Mthatha, South Africa | |
| 5 | 10,563.29 miles (16,999.92 km) SSE | Margate Airport (MGH) | Margate, KwaZulu-Natal, South Africa | |
| 6 | 10,551.55 miles (16,981.04 km) SE | George Airport (GRJ) | George, South Africa | |
| 7 | 10,498.77 miles (16,896.08 km) SSE | King Shaka International (DUR) | Durban, KwaZulu-Natal, South Africa | |
| 8 | 10,486.13 miles (16,875.75 km) SSE | Pietermaritzburg Airport (PZB) | Pietermaritzburg, South Africa | |
| 9 | 10,463.83 miles (16,839.85 km) SE | Lebakeng Airport (LEF) | Lebakeng, Lesotho | |
| 10 | 10,460.65 miles (16,834.75 km) SSE | Richards Bay Airport (RCB) | Richards Bay, KwaZulu-Natal, South Africa | |
| 11 | 10,448.37 miles (16,814.98 km) SE | Lesobeng Airport (LES) | Lesobeng, Lesotho | |
| 12 | 10,446.79 miles (16,812.44 km) SE | Semonkong Airport (SOK) | Semonkong, Lesotho | |
| 13 | 10,434.10 miles (16,792.02 km) SE | Mokhotlong Airport (MKH) | Mokhotlong, Lesotho | |
| 14 | 10,431.69 miles (16,788.14 km) SE | Cape Town International Airport (CPT) | Cape Town, South Africa | |
| 15 | 10,425.13 miles (16,777.58 km) SE | Mafeteng Airport (MFC) | Mafeteng, Lesotho | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 31.23 miles (50.26 km) WSW | Wiscasset Airport (ISS) | Wiscasset, Maine, United States | |
| 2 | 38.99 miles (62.74 km) WNW | Augusta State Airport (AUG) | Augusta, Maine, United States | |
| 3 | 43.32 miles (69.71 km) WSW | Naval Air Station Brunswick (NHZ) | Brunswick, Maine, United States | |
| 4 | 43.38 miles (69.82 km) NW | Waterville Robert Lafleur Airport (WVL) | Waterville, Maine, United States | |
| 5 | 45.35 miles (72.99 km) NE | Hancock County-Bar Harbor Airport (BHB) | Bar Harbor, Maine, United States | |
| 6 | 53.33 miles (85.83 km) NNE | Bangor International Airport (BGR) | Bangor, Maine, United States | |
| 7 | 58.82 miles (94.66 km) W | Auburn/Lewiston Municipal Airport (LEW) | Auburn/Lewiston, Maine, United States | |
| 8 | 59.05 miles (95.03 km) NW | Central Maine Airport of Norridgewock (OWK) | Norridgewock, Maine, United States | |
| 9 | 65.12 miles (104.80 km) NNE | Old Town Municipal Airport (OLD) | Old Town, Maine, United States | |
| 10 | 66.73 miles (107.38 km) WSW | Portland International Jetport (PWM) | Portland, Maine, United States | |
| 11 | 91.96 miles (148.00 km) W | Eastern Slopes Regional Airport (FRY) | Fryeburg, Maine, United States | |
| 12 | 92.58 miles (148.99 km) WSW | Sanford Seacoast Regional Airport (SFM) | Sanford, Maine, United States | |
| 13 | 108.65 miles (174.86 km) WNW | Berlin Regional Airport (BML) | Berlin, New Hampshire, United States | |
| 14 | 109.11 miles (175.59 km) NE | Princeton Municipal Airport (PNN) | Princeton, Maine, United States | |
| 15 | 109.78 miles (176.68 km) SW | Portsmouth International Airport at Pease (PSM) | Portsmouth, New Hampshire, United States | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 11,707.78 miles (18,841.79 km) SSW | Albany Airport (ALH) | Albany, Western Australia, Australia | |
| 2 | 11,704.56 miles (18,836.61 km) SSW | Manjimup Airport (MJP) | Manjimup, Western Australia, Australia | |
| 3 | 11,701.73 miles (18,832.06 km) SSW | Margaret River Airport (MGV) | Margaret River, Western Australia, Australia | |
| 4 | 11,680.66 miles (18,798.16 km) SSW | Busselton Regional Airport (BQB) | Busselton, Western Australia, Australia | |
| 5 | 11,655.50 miles (18,757.66 km) SSW | Bunbury Airport (BUY) | Bunbury, Western Australia, Australia | |
| 6 | 11,634.75 miles (18,724.26 km) SSW | Katanning Airport (KNI) | Katanning, Western Australia, Australia | |
| 7 | 11,567.46 miles (18,615.98 km) SSW | Jandakot Airport (JAD) | Jandakot, Western Australia, Australia | |
| 8 | 11,566.96 miles (18,615.17 km) SSW | Rottnest Airport (RTS) | Rottnest Island, Western Australia, Australia | |
| 9 | 11,555.62 miles (18,596.91 km) SSW | Perth Airport (PER) | Perth, Western Australia, Australia | |
| 10 | 11,511.65 miles (18,526.16 km) SW | Esperance Airport (EPR) | Esperance, Australia | |
| 11 | 11,459.54 miles (18,442.29 km) SSW | Jurien Bay Airport (JUR) | Jurien Bay, Western Australia, Australia | |
| 12 | 11,374.24 miles (18,305.01 km) SW | Kambalda Airport (KDB) | Kambalda, Western Australia, Australia | |
| 13 | 11,372.20 miles (18,301.73 km) SSW | Morawa Airport (MWB) | Morawa, Western Australia, Australia | |
| 14 | 11,361.85 miles (18,285.08 km) SSW | Windarling Airport (WRN) | Windarling, Australia | |
| 15 | 11,361.47 miles (18,284.47 km) SSW | Geraldton Airport (GET) | Geraldton, Western Australia, Australia | |