Nonstop flight route between between Baltimore, Maryland and Washington, D.C., United States and St. Mary's, Alaska, United States:

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 St. Mary's Airport (KSM), St. Mary's, Alaska, United States would travel a Great Circle distance of 3,772 miles (or 6,070 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 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 Baltimore/Washington International Thurgood Marshall 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:

Arrival Airport Information:

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 airport's cargo concourse covers a 395,000 sq ft area.
• Baltimore/Washington International Thurgood Marshall Airport (BWI) has 4 runways.
• Baltimore/Washington International Thurgood Marshall Airport handled 22,391,785 passengers last year.
• On July 12, 2013, BWI Airport and the Maryland Aviation Administration launched a 3-year $125 million construction project.
• 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.
• Beginning in the 1980s, and later for much of the 1990s, BWI was a major hub for Piedmont Airlines and successor US Airways, but that airline's financial difficulties in the wake of the dot-com bust, the September 11 attacks, and intense low fare competition forced it to significantly reduce its presence at the airport.
• The first phase of BWI modernization was completed in 1974 at a cost of $30 million.

Facts about St. Mary's Airport (KSM):

• St. Mary's Airport (KSM) has 2 runways.
• 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.
• 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.
• 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.