Nonstop flight route between Leonardtown, Maryland, United States and Petersburg, Alaska, United States:
Departure Airport:
(38°18'55"N by 76°32'59"W)
Arrival Airport:
(56°48'5"N by 132°56'45"W)
Distance from LTW to PSG:
2,821.65 miles (4,541.00 km)
Share this route:
Jump to:
- About this route
- LTW Airport Information
- PSG Airport Information
- Facts about LTW
- Facts about PSG
- 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 PSG
- List of Nearest Airports to PSG
- Map of Furthest Airports from PSG
- List of Furthest Airports from PSG
About this route:
A direct, nonstop flight between St. Mary's County Regional Airport (LTW), Leonardtown, Maryland, United States and Petersburg James A. Johnson Airport (PSG), Petersburg, Alaska, United States would travel a Great Circle distance of 2,822 miles (or 4,541 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 Petersburg James A. Johnson 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 Petersburg James A. Johnson 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: | PSG / PAPG |
| Airport Name: | Petersburg James A. Johnson Airport |
| Location: | Petersburg, Alaska, United States |
| GPS Coordinates: | 56°48'5"N by 132°56'45"W |
| Area Served: | Petersburg, Alaska |
| Airport Type: | Public |
| Elevation: | 113 feet (34 meters) |
| # of Runways: | 1 |
| View all routes: | Routes from PSG |
| More Information: | PSG Maps & Info |
Facts about St. Mary's County Regional Airport (LTW):
- 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".
- 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.
- 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.
- 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 Petersburg James A. Johnson Airport (PSG):
- The closest airport to Petersburg James A. Johnson Airport (PSG) is Wrangell Airport (WRG), which is located 31 miles (50 kilometers) SE of PSG.
- Petersburg James A. Johnson Airport (PSG) currently has only 1 runway.
- Because of Petersburg James A. Johnson Airport's relatively low elevation of 113 feet, planes can take off or land at Petersburg James A. Johnson 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.
- As per Federal Aviation Administration records, the airport had 19,901 passenger boardings in calendar year 2008, 17,988 enplanements in 2009, and 18,468 in 2010.
- The furthest airport from Petersburg James A. Johnson Airport (PSG) is Port Alfred Airport (AFD), which is located 10,570 miles (17,010 kilometers) away in Port Alfred, South Africa.
| 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 | 30.97 miles (49.84 km) SE | Wrangell Airport (WRG) | Wrangell, Alaska, United States | |
| 2 | 38.04 miles (61.22 km) WNW | Kake Airport (KAE) | Kake, Alaska, United States | |
| 3 | 40.34 miles (64.91 km) SW | Point Baker Seaplane Base (KPB) | Point Baker, Alaska, United States | |
| 4 | 41.29 miles (66.44 km) SW | Port Protection Seaplane Base (PPV) | Port Protection, Alaska, United States | |
| 5 | 47.80 miles (76.93 km) S | North Whale Seaplane Base (WWP) | North Whale Pass, Alaska, United States | |
| 6 | 54.52 miles (87.75 km) S | Coffman Cove Seaplane Base (KCC) | Coffman Cove, Alaska, United States | |
| 7 | 61.46 miles (98.91 km) SSW | Tokeen Seaplane Base (TKI) | Tokeen, Alaska, United States | |
| 8 | 66.63 miles (107.24 km) S | Naukati Bay Seaplane Base (WNC) | Tuxekan Island, Alaska, United States | |
| 9 | 70.93 miles (114.14 km) E | Bronson Creek Airport (YBM) | Bronson Creek, British Columbia, Canada | |
| 10 | 75.33 miles (121.23 km) WSW | Port Alexander Seaplane Base (PTD) | Port Alexander, Alaska, United States | |
| 11 | 78.27 miles (125.96 km) NW | Angoon Seaplane Base (AGN) | Angoon, Alaska, United States | |
| 12 | 78.51 miles (126.35 km) SSE | Thorne Bay Seaplane Base (KTB) | Thorne Bay, Alaska, United States | |
| 13 | 84.59 miles (136.14 km) S | Klawock Airport (KLW) | Klawock, Alaska, United States | |
| 14 | 89.70 miles (144.36 km) NW | Chatham Seaplane Base (CYM) | Chatham, Alaska, United States | |
| 15 | 91.42 miles (147.12 km) S | Hollis Clark Bay Seaplane Base (HYL) | Hollis, Alaska, United States | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 10,569.61 miles (17,010.10 km) SE | Port Alfred Airport (AFD) | Port Alfred, South Africa | |
| 2 | 10,565.32 miles (17,003.20 km) SE | Port Elizabeth International Airport (PLZ) | Port Elizabeth, South Africa | |
| 3 | 10,558.86 miles (16,992.79 km) SE | East London Airport (ELS) | East London, South Africa | |
| 4 | 10,482.62 miles (16,870.11 km) SE | Mthatha Airport (UTT) | Mthatha, South Africa | |
| 5 | 10,481.31 miles (16,868.00 km) SE | George Airport (GRJ) | George, South Africa | |
| 6 | 10,472.38 miles (16,853.62 km) SSE | Margate Airport (MGH) | Margate, KwaZulu-Natal, South Africa | |
| 7 | 10,405.53 miles (16,746.04 km) SSE | King Shaka International (DUR) | Durban, KwaZulu-Natal, South Africa | |
| 8 | 10,394.18 miles (16,727.77 km) SSE | Pietermaritzburg Airport (PZB) | Pietermaritzburg, South Africa | |
| 9 | 10,375.30 miles (16,697.39 km) SSE | Lebakeng Airport (LEF) | Lebakeng, Lesotho | |
| 10 | 10,370.00 miles (16,688.85 km) SE | Cape Town International Airport (CPT) | Cape Town, South Africa | |
| 11 | 10,365.18 miles (16,681.10 km) SSE | Richards Bay Airport (RCB) | Richards Bay, KwaZulu-Natal, South Africa | |
| 12 | 10,360.30 miles (16,673.24 km) SE | Lesobeng Airport (LES) | Lesobeng, Lesotho | |
| 13 | 10,359.36 miles (16,671.74 km) SE | Semonkong Airport (SOK) | Semonkong, Lesotho | |
| 14 | 10,344.29 miles (16,647.49 km) SSE | Mokhotlong Airport (MKH) | Mokhotlong, Lesotho | |
| 15 | 10,339.25 miles (16,639.37 km) SE | Mafeteng Airport (MFC) | Mafeteng, Lesotho | |