Nonstop flight route between Poughkeepsie, New York, United States and St. Mary's, Alaska, United States:
Departure Airport:
(41°37'36"N by 73°53'3"W)
Arrival Airport:
(62°3'38"N by 163°18'6"W)
Distance from POU to KSM:
3,718.19 miles (5,983.83 km)
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- About this route
- POU Airport Information
- KSM Airport Information
- Facts about POU
- Facts about KSM
- Map of Nearest Airports to POU
- List of Nearest Airports to POU
- Map of Furthest Airports from POU
- List of Furthest Airports from POU
- Map of Nearest Airports to KSM
- List of Nearest Airports to KSM
- Map of Furthest Airports from KSM
- List of Furthest Airports from KSM
About this route:
A direct, nonstop flight between Dutchess County Airport (POU), Poughkeepsie, New York, United States and St. Mary's Airport (KSM), St. Mary's, Alaska, United States would travel a Great Circle distance of 3,718 miles (or 5,984 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 Dutchess County Airport and St. Mary's 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 Dutchess County Airport and St. Mary's Airport. You'll see that it will travel the same route of the red line on this map!
Departure Airport Information:
| IATA / ICAO Codes: | POU / KPOU |
| Airport Name: | Dutchess County Airport |
| Location: | Poughkeepsie, New York, United States |
| GPS Coordinates: | 41°37'36"N by 73°53'3"W |
| Area Served: | Poughkeepsie, New York |
| Operator/Owner: | Dutchess County |
| Airport Type: | Public |
| Elevation: | 165 feet (50 meters) |
| # of Runways: | 3 |
| View all routes: | Routes from POU |
| More Information: | POU Maps & Info |
Arrival Airport Information:
| IATA / ICAO Codes: | KSM / PASM |
| Airport Name: | St. Mary's Airport |
| Location: | St. Mary's, Alaska, United States |
| GPS Coordinates: | 62°3'38"N by 163°18'6"W |
| Operator/Owner: | Alaska DOT&PF |
| Airport Type: | Public |
| Elevation: | 312 feet (95 meters) |
| # of Runways: | 2 |
| View all routes: | Routes from KSM |
| More Information: | KSM Maps & Info |
Facts about Dutchess County Airport (POU):
- Dutchess County Airport is a county-owned public-use airport located on State Route 376 in the Town of Wappinger, Dutchess County, New York, United States, four miles south of the central business district of Poughkeepsie.
- Dutchess County Airport covers an area of 640 acres which contains three runways, two of which are paved.
- Dutchess County Airport (POU) has 3 runways.
- The closest airport to Dutchess County Airport (POU) is Stewart International Airport (SWF), which is located only 14 miles (23 kilometers) SW of POU.
- After the Second World War, the airport was turned over to the county for the sum of $1 and guarantees that it would remain open as part of the Surplus Property Act of 1944 by the War Assets Administration.
- Because of Dutchess County Airport's relatively low elevation of 165 feet, planes can take off or land at Dutchess County 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.
- The furthest airport from Dutchess County Airport (POU) is Margaret River Airport (MGV), which is located 11,714 miles (18,852 kilometers) away in Margaret River, Western Australia, Australia.
Facts about St. Mary's Airport (KSM):
- The closest airport to St. Mary's Airport (KSM) is Mountain Village Airport (MOU), which is located only 13 miles (20 kilometers) W of KSM.
- The furthest airport from St. Mary's Airport (KSM) is Cape Town International Airport (CPT), which is located 10,494 miles (16,889 kilometers) away in Cape Town, South Africa.
- Because of St. Mary's Airport's relatively low elevation of 312 feet, planes can take off or land at St. Mary's 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.
- St. Mary's Airport (KSM) has 2 runways.
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 14.20 miles (22.85 km) SW | Stewart International Airport (SWF) | Newburgh, New York, United States |     |
| 2 | 21.26 miles (34.21 km) WSW | Orange County Airport (MGJ) | Montgomery, New York, United States | |
| 3 | 27.26 miles (43.87 km) SE | Danbury Municipal Airport (DXR) | Danbury, Connecticut, United States | |
| 4 | 39.74 miles (63.96 km) SSE | Westchester County Airport (HPN) | White Plains, New York, United States | |
| 5 | 40.05 miles (64.45 km) ESE | Waterbury-Oxford Airport (OXC) | Oxford, Connecticut, United States | |
| 6 | 45.78 miles (73.67 km) NNE | Walter J. Koladza Airport (GBR) | Great Barrington, Massachusetts, United States | |
| 7 | 46.79 miles (75.30 km) N | Columbia County Airport (HCC) | Hudson, New York, United States | |
| 8 | 47.30 miles (76.12 km) W | Sullivan County International Airport (MSV) | Monticello, New York, United States | |
| 9 | 50.68 miles (81.56 km) SE | Igor I. Sikorsky Memorial Airport (BDR) | Bridgeport, Connecticut, United States | |
| 10 | 54.44 miles (87.62 km) S | Teterboro Airport (TEB) | Teterboro, New Jersey, United States | |
| 11 | 55.87 miles (89.91 km) SSW | Essex County Airport (CDW) | Caldwell, New Jersey, United States | |
| 12 | 57.42 miles (92.41 km) ESE | Tweed New Haven Airport (HVN) | New Haven, Connecticut, United States | |
| 13 | 58.62 miles (94.33 km) S | Flushing Airport (closed 1984) (FLU) | Flushing, New York, United States | |
| 14 | 58.69 miles (94.46 km) S | LaGuardia Airport (LGA) | New York City, New York, United States | |
| 15 | 60.59 miles (97.51 km) S | West 30th Street Heliport (JRA) | New York City, New York, United States | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 11,714.08 miles (18,851.94 km) SW | Margaret River Airport (MGV) | Margaret River, Western Australia, Australia | |
| 2 | 11,691.43 miles (18,815.48 km) SW | Manjimup Airport (MJP) | Manjimup, Western Australia, Australia | |
| 3 | 11,690.15 miles (18,813.43 km) SW | Busselton Regional Airport (BQB) | Busselton, Western Australia, Australia | |
| 4 | 11,663.54 miles (18,770.61 km) SW | Bunbury Airport (BUY) | Bunbury, Western Australia, Australia | |
| 5 | 11,653.50 miles (18,754.45 km) WSW | Albany Airport (ALH) | Albany, Western Australia, Australia | |
| 6 | 11,602.50 miles (18,672.36 km) SW | Katanning Airport (KNI) | Katanning, Western Australia, Australia | |
| 7 | 11,593.25 miles (18,657.48 km) SW | Rottnest Airport (RTS) | Rottnest Island, Western Australia, Australia | |
| 8 | 11,586.60 miles (18,646.77 km) SW | Jandakot Airport (JAD) | Jandakot, Western Australia, Australia | |
| 9 | 11,574.87 miles (18,627.90 km) SW | Perth Airport (PER) | Perth, Western Australia, Australia | |
| 10 | 11,509.59 miles (18,522.84 km) SW | Jurien Bay Airport (JUR) | Jurien Bay, Western Australia, Australia | |
| 11 | 11,427.58 miles (18,390.86 km) SSW | Geraldton Airport (GET) | Geraldton, Western Australia, Australia | |
| 12 | 11,419.79 miles (18,378.33 km) WSW | Esperance Airport (EPR) | Esperance, Australia | |
| 13 | 11,414.62 miles (18,370.01 km) SW | Morawa Airport (MWB) | Morawa, Western Australia, Australia | |
| 14 | 11,385.43 miles (18,323.02 km) SSW | Mullewa Airport (MXU) | Mullewa, Western Australia, Australia | |
| 15 | 11,369.77 miles (18,297.82 km) SSW | Kalbarri Airport (KAX) | Kalbarri, Western Australia, Australia | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 12.52 miles (20.15 km) W | Mountain Village Airport (MOU) | Mountain Village, Alaska, United States | |
| 2 | 15.71 miles (25.28 km) ESE | Pilot Station Airport (PQS) | Pilot Station, Alaska, United States | |
| 3 | 43.61 miles (70.18 km) ESE | Marshall Don Hunter Sr. Airport (MLL) | Marshall, Alaska, United States | |
| 4 | 58.95 miles (94.87 km) WNW | Sheldon Point Airport (SXP) | Sheldon Point, Alaska, United States | |
| 5 | 61.02 miles (98.20 km) NW | Alakanuk Airport (AUK) | Alakanuk, Alaska, United States | |
| 6 | 62.90 miles (101.24 km) NW | Emmonak Airport (EMK) | Emmonak, Alaska, United States | |
| 7 | 67.40 miles (108.48 km) N | Kotlik Airport (KOT) | Kotlik, Alaska, United States | |
| 8 | 67.43 miles (108.52 km) ESE | Russian Mission Airport (RSH) | Russian Mission, Alaska, United States | |
| 9 | 75.21 miles (121.04 km) W | Scammon Bay Airport (SCM) | Scammon Bay, Alaska, United States | |
| 10 | 83.21 miles (133.91 km) WSW | Chevak Airport (VAK) | Chevak, Alaska, United States | |
| 11 | 84.72 miles (136.35 km) SSE | Nunapitchuk Airport (NUP) | Nunapitchuk, Alaska, United States | |
| 12 | 85.97 miles (138.35 km) SSE | Kasigluk Airport (KUK) | Kasigluk, Alaska, United States | |
| 13 | 88.49 miles (142.42 km) W | Cape Romanzof Air Force Station Cape Romanzof Long Range Radar Site (CZF) | Cape Romanzof, Alaska, United States | |
| 14 | 89.19 miles (143.53 km) SSW | Newtok Airport (WWT) | Newtok, Alaska, United States | |
| 15 | 89.22 miles (143.59 km) SSE | Atmautluak Airport (ATT) | Atmautluak, Alaska, United States | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 10,494.08 miles (16,888.54 km) S | Cape Town International Airport (CPT) | Cape Town, South Africa | |
| 2 | 10,482.44 miles (16,869.80 km) S | George Airport (GRJ) | George, South Africa | |
| 3 | 10,457.83 miles (16,830.21 km) SSW | Port Elizabeth International Airport (PLZ) | Port Elizabeth, South Africa | |
| 4 | 10,416.76 miles (16,764.12 km) SSW | Port Alfred Airport (AFD) | Port Alfred, South Africa | |
| 5 | 10,371.90 miles (16,691.92 km) SSW | East London Airport (ELS) | East London, South Africa | |
| 6 | 10,261.64 miles (16,514.46 km) SSW | Mthatha Airport (UTT) | Mthatha, South Africa | |
| 7 | 10,199.66 miles (16,414.71 km) S | Kleinsee Airport (KLZ) | Kleinzee, South Africa | |
| 8 | 10,195.75 miles (16,408.43 km) SSW | Margate Airport (MGH) | Margate, KwaZulu-Natal, South Africa | |
| 9 | 10,169.94 miles (16,366.89 km) S | Aggeneys Airport (AGZ) | Aggeneys, South Africa | |
| 10 | 10,169.94 miles (16,366.89 km) S | Wild Coast Sun Airport (MZF) | Mzamba, South Africa | |
| 11 | 10,157.43 miles (16,346.75 km) SSW | Mafeteng Airport (MFC) | Mafeteng, Lesotho | |
| 12 | 10,151.99 miles (16,338.00 km) SSW | Semonkong Airport (SOK) | Semonkong, Lesotho | |
| 13 | 10,149.37 miles (16,333.79 km) SSW | Lebakeng Airport (LEF) | Lebakeng, Lesotho | |
| 14 | 10,143.31 miles (16,324.03 km) SSW | Lesobeng Airport (LES) | Lesobeng, Lesotho | |
| 15 | 10,133.50 miles (16,308.25 km) SE | Teniente Rodolfo Marsh Airport (TNM) | Villa Las Estrellas, Antarctica | |