Nonstop flight route between Portsmouth, New Hampshire, United States and between Baltimore, Maryland and Washington, D.C., United States:

About this route:

A direct, nonstop flight between Portsmouth International Airport at Pease (PSM), Portsmouth, New Hampshire, 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 406 miles (or 654 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 relatively short distance between Portsmouth International Airport at Pease and Baltimore/Washington International Thurgood Marshall Airport, the route shown on this map most likely still appears to be a straight line.

Departure Airport Information:

Arrival Airport Information:

Facts about Portsmouth International Airport at Pease (PSM):

• The furthest airport from Portsmouth International Airport at Pease (PSM) is Margaret River Airport (MGV), which is located 11,729 miles (18,875 kilometers) away in Margaret River, Western Australia, Australia.
• It shares the runway with the Pease Air National Guard Base, which is actively utilized by the 157th Air Refueling Wing of the New Hampshire Air National Guard, an Air Mobility Command -gained Air National Guard unit operating the KC-135R Stratotanker aircraft.
• Portsmouth International Airport at Pease covers an area of 3,000 acres at an elevation of 100 feet above mean sea level.
• Portsmouth International Airport at Pease (PSM) currently has only 1 runway.
• Because of Portsmouth International Airport at Pease's relatively low elevation of 100 feet, planes can take off or land at Portsmouth International Airport at Pease 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 Portsmouth International Airport at Pease (PSM) is Sanford Seacoast Regional Airport (SFM), which is located 23 miles (36 kilometers) NNE of PSM.
• Portsmouth International Airport at Pease, formerly known as Pease International Airport, is a joint civil and military use airport located one nautical mile west of the central business district of Portsmouth, a city in Rockingham County, New Hampshire, United States.

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

• The first phase of BWI modernization was completed in 1974 at a cost of $30 million.
• On July 12, 2013, BWI Airport and the Maryland Aviation Administration launched a 3-year $125 million construction project.
• Baltimore/Washington International Thurgood Marshall Airport handled 22,391,785 passengers last year.
• The airport has been a backdrop in numerous films, including The Silence of the Lambs, Goldfinger, Broadcast News, and Twelve Monkeys.
• 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 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.