Nonstop flight route between Leonardtown, Maryland, United States and Porto Alegre, Rio Grande do Sul, Brazil:
Departure Airport:
(38°18'55"N by 76°32'59"W)
Arrival Airport:
(29°59'38"S by 51°10'15"W)
Distance from LTW to POA:
4,995.51 miles (8,039.47 km)
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Jump to:
- About this route
- LTW Airport Information
- POA Airport Information
- Facts about LTW
- Facts about POA
- Map of Nearest Airports to LTW
- List of Nearest Airports to LTW
- Map of Furthest Airports from LTW
- List of Furthest Airports from LTW
- Map of Nearest Airports to POA
- List of Nearest Airports to POA
- Map of Furthest Airports from POA
- List of Furthest Airports from POA
About this route:
A direct, nonstop flight between St. Mary's County Regional Airport (LTW), Leonardtown, Maryland, United States and Salgado Filho International Airport (POA), Porto Alegre, Rio Grande do Sul, Brazil would travel a Great Circle distance of 4,996 miles (or 8,039 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 St. Mary's County Regional Airport and Salgado Filho International 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 St. Mary's County Regional Airport and Salgado Filho International Airport. You'll see that it will travel the same route of the red line on this map!
Departure Airport Information:
| IATA / ICAO Codes: | LTW / |
| Airport Names: |
|
| Location: | Leonardtown, Maryland, United States |
| GPS Coordinates: | 38°18'55"N by 76°32'59"W |
| Airport Type: | Public |
| Elevation: | 142 feet (43 meters) |
| # of Runways: | 1 |
| View all routes: | Routes from LTW |
| More Information: | LTW Maps & Info |
Arrival Airport Information:
| IATA / ICAO Codes: | POA / SBPA |
| Airport Names: |
|
| Location: | Porto Alegre, Rio Grande do Sul, Brazil |
| GPS Coordinates: | 29°59'38"S by 51°10'15"W |
| Area Served: | Porto Alegre |
| Operator/Owner: | Infraero |
| Airport Type: | Public |
| Elevation: | 11 feet (3 meters) |
| # of Runways: | 1 |
| View all routes: | Routes from POA |
| More Information: | POA Maps & Info |
Facts about St. Mary's County Regional Airport (LTW):
- The closest airport to St. Mary's County Regional Airport (LTW) is Naval Air Station Patuxent River (NHK), which is located only 8 miles (12 kilometers) ESE of LTW.
- The furthest airport from St. Mary's County Regional Airport (LTW) is Margaret River Airport (MGV), which is located 11,720 miles (18,862 kilometers) away in Margaret River, Western Australia, Australia.
- In addition to being known as "St. Mary's County Regional Airport", other names for LTW include "Capt. Walter Francis Duke Regional Airport", "none" and "2W6".
- Because of St. Mary's County Regional Airport's relatively low elevation of 142 feet, planes can take off or land at St. Mary's 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.
- St. Mary's County Regional Airport (LTW) currently has only 1 runway.
Facts about Salgado Filho International Airport (POA):
- The furthest airport from Salgado Filho International Airport (POA) is Yakushima Airport (KUM), which is nearly antipodal to Salgado Filho International Airport (meaning Salgado Filho International Airport is almost on the exact opposite side of the Earth from Yakushima Airport), and is located 12,324 miles (19,834 kilometers) away in Yakushima, Kagoshima Prefecture, Japan.
- In 1932, needing a facility to use its aircraft with landing-gear which were replacing its seaplanes, Varig started using São João Airport as its operational base.
- Because of Salgado Filho International Airport's relatively low elevation of 11 feet, planes can take off or land at Salgado Filho 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.
- One of the two TAP Maintenance & Engineering centers in Brazil is located at Salgado Filho International Airport.
- In addition to being known as "Salgado Filho International Airport", another name for POA is "Aeroporto Internacional Salgado Filho".
- The closest airport to Salgado Filho International Airport (POA) is Diomício Freitas/Forquilhinha Airport (CCM), which is located 137 miles (221 kilometers) NE of POA.
- Salgado Filho International Airport (POA) currently has only 1 runway.
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 7.77 miles (12.50 km) ESE | Naval Air Station Patuxent River (NHK) | Patuxent River, Maryland, United States |     |
| 2 | 32.11 miles (51.68 km) ENE | Cambridge–Dorchester Airport (CGE) | Cambridge, Maryland, United States | |
| 3 | 38.28 miles (61.61 km) NNW | Andrews Field (ADW) | Camp Springs, Maryland, United States | |
| 4 | 42.62 miles (68.59 km) NE | Easton Airport (ESN) | Easton, Maryland, United States | |
| 5 | 43.37 miles (69.79 km) N | Lee Airport (ANP) | Annapolis, Maryland, United States | |
| 6 | 43.90 miles (70.64 km) NW | Davison Army Airfield (DAA) | Fort Belvoir, Virginia, United States | |
| 7 | 44.30 miles (71.29 km) NW | Bolling Air Force Base (BOF) | Washington, D.C., United States | |
| 8 | 45.06 miles (72.52 km) WSW | A.P. Hill Army Airfield (APH) | Fort A.P. Hill, Virginia, United States | |
| 9 | 45.50 miles (73.23 km) NW | Ronald Reagan Washington National Airport (DCA) | Arlington County, Virginia (near Washington, D.C.), United States | |
| 10 | 50.17 miles (80.73 km) NNW | College Park Airport (CGS) | College Park, Maryland, United States | |
| 11 | 54.39 miles (87.53 km) NNW | Tipton Airport (FME) | Odenton, Maryland, United States | |
| 12 | 56.43 miles (90.81 km) E | Salisbury-Ocean City: Wicomico Regional Airport (SBY) | Salisbury, Maryland, United States | |
| 13 | 59.26 miles (95.37 km) WNW | Manassas Regional Airport (HEF) | Manassas, Virginia, United States | |
| 14 | 59.26 miles (95.37 km) WNW | Manassas Regional Airport (MNZ) | Manassas, Virginia, United States | |
| 15 | 59.76 miles (96.18 km) N | Baltimore/Washington International Thurgood Marshall Airport (BWI) | between Baltimore, Maryland and Washington, D.C., United States | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 11,720.20 miles (18,861.79 km) WSW | Margaret River Airport (MGV) | Margaret River, Western Australia, Australia | |
| 2 | 11,697.03 miles (18,824.49 km) WSW | Busselton Regional Airport (BQB) | Busselton, Western Australia, Australia | |
| 3 | 11,677.51 miles (18,793.08 km) WSW | Manjimup Airport (MJP) | Manjimup, Western Australia, Australia | |
| 4 | 11,672.64 miles (18,785.24 km) WSW | Bunbury Airport (BUY) | Bunbury, Western Australia, Australia | |
| 5 | 11,627.72 miles (18,712.96 km) WSW | Rottnest Airport (RTS) | Rottnest Island, Western Australia, Australia | |
| 6 | 11,615.07 miles (18,692.60 km) WSW | Jandakot Airport (JAD) | Jandakot, Western Australia, Australia | |
| 7 | 11,608.24 miles (18,681.61 km) WSW | Albany Airport (ALH) | Albany, Western Australia, Australia | |
| 8 | 11,604.71 miles (18,675.92 km) WSW | Perth Airport (PER) | Perth, Western Australia, Australia | |
| 9 | 11,582.36 miles (18,639.95 km) WSW | Katanning Airport (KNI) | Katanning, Western Australia, Australia | |
| 10 | 11,574.88 miles (18,627.91 km) SW | Jurien Bay Airport (JUR) | Jurien Bay, Western Australia, Australia | |
| 11 | 11,514.80 miles (18,531.23 km) SW | Geraldton Airport (GET) | Geraldton, Western Australia, Australia | |
| 12 | 11,480.32 miles (18,475.74 km) SW | Morawa Airport (MWB) | Morawa, Western Australia, Australia | |
| 13 | 11,473.35 miles (18,464.52 km) SW | Kalbarri Airport (KAX) | Kalbarri, Western Australia, Australia | |
| 14 | 11,465.36 miles (18,451.67 km) SW | Mullewa Airport (MXU) | Mullewa, Western Australia, Australia | |
| 15 | 11,395.33 miles (18,338.97 km) SW | Shark Bay Airport (MJK) | Monkey Mia, Western Australia, Australia | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 137.09 miles (220.63 km) NE | Diomício Freitas/Forquilhinha Airport (CCM) | Criciúma, Santa Catarina, Brazil | |
| 2 | 137.45 miles (221.21 km) SSW | Pelotas International Airport (PET) | Pelotas, Rio Grande do Sul, Brazil | |
| 3 | 139.56 miles (224.60 km) NNW | Lauro Kurtz Airport (PFB) | Passo Fundo, Rio Grande do Sul, Brazil | |
| 4 | 152.34 miles (245.16 km) W | Santa Maria Airport (RIA) | Santa Maria, Rio Grande do Sul, Brazil | |
| 5 | 155.75 miles (250.66 km) SSW | Rio Grande Regional Airport (RIG) | Rio Grande, Brazil | |
| 6 | 162.01 miles (260.72 km) NNE | Antônio Correia Pinto de Macedo Airport (LAJ) | Lages, Santa Catarina, Brazil | |
| 7 | 174.57 miles (280.95 km) NNW | Erechim Airport (ERM) | Erechim, Rio Grande do Sul, Brazil | |
| 8 | 196.28 miles (315.88 km) N | Santa Terezinha Municipal Airport (JCB) | Joaçaba, Santa Catarina, Brazil | |
| 9 | 196.50 miles (316.24 km) NW | João Batista Bos Filho Airport (IJU) | Ijuí, Rio Grande do Sul, Brazil | |
| 10 | 199.49 miles (321.04 km) WSW | Comandante Gustavo Kraemer International Airport (BGX) | Bagé, Rio Grande do Sul, Brazil | |
| 11 | 201.58 miles (324.41 km) NNW | Olavo Cecco Rigon Airport (CCI) | Concórdia, Amazonas, Brazil | |
| 12 | 206.86 miles (332.91 km) N | Ângelo Ponzoni Municipal Airport (VIA) | Videira, Santa Catarina, Brazil | |
| 13 | 216.13 miles (347.82 km) WNW | Sepé Tiaraju Airport (GEL) | Santo Ângelo, Rio Grande do Sul, Brazil | |
| 14 | 217.32 miles (349.75 km) NNW | Serafin Enoss Bertaso Airport (XAP) | Chapecó, Brazil | |
| 15 | 221.83 miles (357.01 km) N | Carlos Alberto da Costa Neves Airport (CFC) | Caçador, Santa Catarina, Brazil | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 12,324.19 miles (19,833.82 km) WNW | Yakushima Airport (KUM) | Yakushima, Kagoshima Prefecture, Japan | |
| 2 | 12,316.37 miles (19,821.23 km) NNW | Amami Airport (ASJ) | Amami Island, Japan | |
| 3 | 12,303.56 miles (19,800.62 km) NNW | Kikai Airport (KKX) | Kikaiga Shima, Kikai-Shima Island, Japan | |
| 4 | 12,269.00 miles (19,744.99 km) NW | Kagoshima Airport (KOJ) | Kagoshima, Japan | |
| 5 | 12,252.15 miles (19,717.87 km) N | Fukue Airport (FUJ) | Gotō, Nagasaki, Japan | |
| 6 | 12,234.24 miles (19,689.04 km) NW | Miyazaki Airport (KMI) | Miyazaki, Miyazaki Prefecture, Japan | |
| 7 | 12,224.96 miles (19,674.12 km) NNW | Nagasaki Airport (NGS) | Nagasaki, Japan | |
| 8 | 12,206.87 miles (19,645.01 km) NNW | Kumamoto Airport (KMJ) | Mashiki, Kumamoto Prefecture, Japan | |
| 9 | 12,202.14 miles (19,637.40 km) NNW | Saga Airport (HSG) | Saga, Kyūshū, Japan | |
| 10 | 12,202.06 miles (19,637.27 km) NNE | Iejima Airport (IEJ) | Iejima, Japan | |
| 11 | 12,182.72 miles (19,606.13 km) NNE | Aguni Airport (AGJ) | Aguni, Japan | |
| 12 | 12,177.01 miles (19,596.95 km) NNE | Kadena Air Base 嘉手納飛行場 Kadena Hikōjō (DNA) | Okinawa Prefecture, Japan | |
| 13 | 12,171.33 miles (19,587.81 km) NNW | Iki Airport (IKI) | Iki, Iki Island, Japan | |
| 14 | 12,171.05 miles (19,587.36 km) NNW | Fukuoka Airport (FUK) | Fukuoka, Japan | |
| 15 | 12,170.81 miles (19,586.97 km) NNE | Jeongseok / Jungseok Airport (JDG) | Jeju province, South Korea | |