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

Arrival Airport:

Distance from BWI to PTD:
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- About this route
- BWI Airport Information
- PTD Airport Information
- Facts about BWI
- Facts about PTD
- Map of Nearest Airports to BWI
- List of Nearest Airports to BWI
- Map of Furthest Airports from BWI
- List of Furthest Airports from BWI
- Map of Nearest Airports to PTD
- List of Nearest Airports to PTD
- Map of Furthest Airports from PTD
- List of Furthest Airports from PTD
About this route:
A direct, nonstop flight between Baltimore/Washington International Thurgood Marshall Airport (BWI), between Baltimore, Maryland and Washington, D.C., United States and Port Alexander Seaplane Base (PTD), Port Alexander, Alaska, 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 Baltimore/Washington International Thurgood Marshall Airport and Port Alexander 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 Baltimore/Washington International Thurgood Marshall Airport and Port Alexander 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: | BWI / KBWI |
Airport Name: | Baltimore/Washington International Thurgood Marshall Airport |
Location: | between Baltimore, Maryland and Washington, D.C., United States |
GPS Coordinates: | 39°10'31"N by 76°40'5"W |
Area Served: | Baltimore–Washington Metropolitan Area |
Operator/Owner: | Maryland Aviation Administration |
Airport Type: | Public |
Elevation: | 146 feet (45 meters) |
# of Runways: | 4 |
View all routes: | Routes from BWI |
More Information: | BWI Maps & Info |
Arrival Airport Information:
IATA / ICAO Codes: | PTD / PAAP |
Airport Names: |
|
Location: | Port Alexander, Alaska, United States |
GPS Coordinates: | 56°14'48"N by 134°38'53"W |
Area Served: | Port Alexander, Alaska |
Operator/Owner: | Alaska DOT&PF - Southeast Region |
Airport Type: | Public |
Elevation: | 0 feet (0 meters) |
# of Runways: | 1 |
View all routes: | Routes from PTD |
More Information: | PTD Maps & Info |
Facts about Baltimore/Washington International Thurgood Marshall Airport (BWI):
- Currently improvements are being made to widen concourse C.
- BWI is currently the busiest airport within the Baltimore–Washington area with 11,067,317 boardings in 2011.
- 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.
- Baltimore/Washington International Thurgood Marshall Airport handled 22,391,785 passengers last year.
- 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 (BWI) has 4 runways.
- The first phase of BWI modernization was completed in 1974 at a cost of $30 million.
Facts about Port Alexander Seaplane Base (PTD):
- Port Alexander Seaplane Base has one seaplane landing area designated N/S which measures 3,000 by 300 feet.
- Port Alexander Seaplane Base (PTD) currently has only 1 runway.
- 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.
- 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.
- In addition to being known as "Port Alexander Seaplane Base", another name for PTD is "AHP".
- 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.