Nonstop flight route between Port Alexander, Alaska, United States and between Baltimore, Maryland and Washington, D.C., United States:

About this route:

A direct, nonstop flight between Port Alexander Seaplane Base (PTD), Port Alexander, Alaska, United States and Baltimore/Washington International Thurgood Marshall Airport (BWI), between Baltimore, Maryland and Washington, D.C., United States would travel a Great Circle distance of 2,840 miles (or 4,570 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 Port Alexander Seaplane Base and Baltimore/Washington International Thurgood Marshall 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 Port Alexander Seaplane Base and Baltimore/Washington International Thurgood Marshall Airport. You'll see that it will travel the same route of the red line on this map!

Departure Airport Information:

Arrival Airport Information:

Facts about Port Alexander Seaplane Base (PTD):

• As per Federal Aviation Administration records, the airport had 139 passenger boardings in calendar year 2008, 189 enplanements in 2009, and 146 in 2010.
• Port Alexander Seaplane Base has one seaplane landing area designated N/S which measures 3,000 by 300 feet.
• In addition to being known as "Port Alexander Seaplane Base", another name for PTD is "AHP".
• Port Alexander Seaplane Base (PTD) currently has only 1 runway.
• Because of Port Alexander Seaplane Base's relatively low elevation of 0 feet, planes can take off or land at Port Alexander 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 Port Alexander Seaplane Base (PTD) is Point Baker Seaplane Base (KPB), which is located 40 miles (64 kilometers) E of PTD.
• The furthest airport from Port Alexander Seaplane Base (PTD) is Port Alfred Airport (AFD), which is located 10,640 miles (17,123 kilometers) away in Port Alfred, South Africa.

Facts about Baltimore/Washington International Thurgood Marshall Airport (BWI):

• The closest airport to Baltimore/Washington International Thurgood Marshall Airport (BWI) is Tipton Airport (FME), which is located only 8 miles (13 kilometers) SW of BWI.
• The furthest airport from Baltimore/Washington International Thurgood Marshall Airport (BWI) is Margaret River Airport (MGV), which is located 11,691 miles (18,814 kilometers) away in Margaret River, Western Australia, Australia.
• Because of Baltimore/Washington International Thurgood Marshall Airport's relatively low elevation of 146 feet, planes can take off or land at Baltimore/Washington International Thurgood Marshall 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.
• Baltimore/Washington International Thurgood Marshall Airport handled 22,391,785 passengers last year.
• Baltimore/Washington International Thurgood Marshall Airport (BWI) has 4 runways.
• In late 2008, Health magazine named BWI the second healthiest airport in the United States.
• Passenger van service to and from the Eastern Shore and Western Maryland is available through BayRunner Shuttle with services to and from BWI to Kent Island, Easton, Cambridge, Salisbury, Ocean Pines, and Ocean City and Grantsville, Frostburg, Cumberland, Hancock, Hagerstown, and Frederick.
• Currently improvements are being made to widen concourse C.
• The passenger terminal renovation program was complete in 1979, the most dramatic work of the airport's modernization, which was designed by DMJM along with Peterson & Brickbauer.