Nonstop flight route between Siena, Italy and Hydaburg, Alaska, United States:
Departure Airport:
(43°15'23"N by 11°15'18"E)
Arrival Airport:
(55°12'23"N by 132°49'41"W)
Distance from SAY to HYG:
5,315.19 miles (8,553.95 km)
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Jump to:
- About this route
- SAY Airport Information
- HYG Airport Information
- Facts about SAY
- Facts about HYG
- Map of Nearest Airports to SAY
- List of Nearest Airports to SAY
- Map of Furthest Airports from SAY
- List of Furthest Airports from SAY
- Map of Nearest Airports to HYG
- List of Nearest Airports to HYG
- Map of Furthest Airports from HYG
- List of Furthest Airports from HYG
About this route:
A direct, nonstop flight between Siena-Ampugnano Airport (SAY), Siena, Italy and Hydaburg Seaplane Base (HYG), Hydaburg, Alaska, United States would travel a Great Circle distance of 5,315 miles (or 8,554 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 Siena-Ampugnano Airport and Hydaburg Seaplane Base, 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 Siena-Ampugnano Airport and Hydaburg Seaplane Base. You'll see that it will travel the same route of the red line on this map!
Departure Airport Information:
| IATA / ICAO Codes: | SAY / LIQS |
| Airport Names: |
|
| Location: | Siena, Italy |
| GPS Coordinates: | 43°15'23"N by 11°15'18"E |
| Area Served: | Siena, Tuscany, Italy |
| Operator/Owner: | Aeroporto di Siena S.p.A. |
| Airport Type: | Military / Public |
| Elevation: | 634 feet (193 meters) |
| # of Runways: | 1 |
| View all routes: | Routes from SAY |
| More Information: | SAY Maps & Info |
Arrival 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 |
Facts about Siena-Ampugnano Airport (SAY):
- Because of Siena-Ampugnano Airport's relatively low elevation of 634 feet, planes can take off or land at Siena-Ampugnano 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.
- In addition to being known as "Siena-Ampugnano Airport", other names for SAY include "Aeroporto di Siena-Ampugnano" and "Siena-Ampugnano".
- Siena-Ampugnano Airport handled 3,745 passengers last year.
- Siena-Ampugnano Airport (SAY) currently has only 1 runway.
- During World War II, the facility was known as Malignano Airfield.
- The closest airport to Siena-Ampugnano Airport (SAY) is Grosseto Airport (GRS), which is located 36 miles (57 kilometers) SSW of SAY.
- The furthest airport from Siena-Ampugnano Airport (SAY) is Chatham Islands (CHT), which is nearly antipodal to Siena-Ampugnano Airport (meaning Siena-Ampugnano Airport is almost on the exact opposite side of the Earth from Chatham Islands), and is located 12,049 miles (19,391 kilometers) away in Waitangi, Chatham Islands, New Zealand.
Facts about Hydaburg Seaplane Base (HYG):
- 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.
- Hydaburg Seaplane Base (HYG) currently has only 1 runway.
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 35.54 miles (57.20 km) SSW | Grosseto Airport (GRS) | Grosseto, Italy |     |
| 2 | 38.34 miles (61.70 km) N | Florence Airport, Peretola (FLR) | Florence, Italy | |
| 3 | 52.37 miles (84.28 km) NW | Pisa International Airport (PSA) | Pisa, Italy | |
| 4 | 61.71 miles (99.31 km) WSW | Marina di Campo Airport (EBA) | Elba, Italy | |
| 5 | 64.35 miles (103.56 km) E | Perugia San Francesco d'Assisi – Umbria International Airport (PEG) | Perugia, Italy | |
| 6 | 76.59 miles (123.25 km) NNE | Forlì Airport (FRL) | Forlì, Emilia-Romagna, Italy | |
| 7 | 85.83 miles (138.12 km) NE | Federico Fellini International Airport (RMI) | Rimini, Italy | |
| 8 | 88.39 miles (142.25 km) N | Bologna Guglielmo Marconi Airport (BLQ) | Bologna, Italy | |
| 9 | 102.02 miles (164.19 km) WSW | Bastia – Poretta Airport (BIA) | Bastia, Corsica, France | |
| 10 | 108.61 miles (174.79 km) ENE | Falconara Airport (AOI) | Ancona, Italy | |
| 11 | 112.39 miles (180.87 km) SSE | Fiumicino – Leonardo da Vinci International Airport (FCO) | Fiumicino (near Rome), Italy | |
| 12 | 118.22 miles (190.26 km) NNW | Parma Airport (PMF) | Parma, Italy | |
| 13 | 121.67 miles (195.81 km) SE | Ciampino–G. B. Pastine International Airport (CIA) | Rome, Italy | |
| 14 | 134.62 miles (216.65 km) WSW | Calvi - Sainte-Catherine Airport (CLY) | Calvi, Corsica, France | |
| 15 | 137.40 miles (221.13 km) NNW | Piacenza-San Damiano Air Base (QPZ) | Piacenza, Italy | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 12,048.74 miles (19,390.52 km) E | Chatham Islands (CHT) | Waitangi, Chatham Islands, New Zealand | |
| 2 | 11,675.99 miles (18,790.63 km) ESE | Gisborne Airport (GIS) | Gisborne, New Zealand | |
| 3 | 11,647.56 miles (18,744.89 km) ESE | Hawke's Bay Airport (NPE) | Napier, New Zealand | |
| 4 | 11,622.05 miles (18,703.83 km) E | Hood Aerodrome (MRO) | Masterton, New Zealand | |
| 5 | 11,607.40 miles (18,680.26 km) E | Palmerston North Airport (PMR) | Palmerston North, New Zealand | |
| 6 | 11,600.41 miles (18,669.00 km) ESE | Whakatane Airport (WHK) | Whakatane, New Zealand | |
| 7 | 11,588.43 miles (18,649.72 km) E | Kapiti Coast Airport (PPQ) | Paraparaumu Beach, New Zealand | |
| 8 | 11,587.92 miles (18,648.91 km) ESE | Taupo AirportTe Papa Waka Rererangi o Taupō (TUO) | Taupo, New Zealand | |
| 9 | 11,586.98 miles (18,647.39 km) E | Wellington International Airport (WLG) | Wellington, New Zealand | |
| 10 | 11,578.75 miles (18,634.14 km) ESE | Rotorua International Airport (ROT) | Rotorua, New Zealand | |
| 11 | 11,569.59 miles (18,619.41 km) E | Wanganui Airport (WAG) | Wanganui, New Zealand | |
| 12 | 11,558.03 miles (18,600.80 km) ESE | Tauranga Airport (TRG) | Tauranga, New Zealand | |
| 13 | 11,543.18 miles (18,576.90 km) E | Woodbourne Airport (BHE) | Blenheim, New Zealand | |
| 14 | 11,542.29 miles (18,575.47 km) E | Kaikoura Aerodrome (KBZ) | Kaikoura, New Zealand | |
| 15 | 11,538.61 miles (18,569.54 km) ESE | Matamata Airport (MTA) | Matamata, New Zealand | |
| 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 | |