Nonstop flight route between Seattle, Washington, United States and Philadelphia, Pennsylvania, United States:

About this route:

A direct, nonstop flight between King County International Airport (BFI), Seattle, Washington, United States and Philadelphia International Airport (PHL), Philadelphia, Pennsylvania, United States would travel a Great Circle distance of 2,371 miles (or 3,816 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 King County International Airport and Philadelphia International Airport, the route shown on this map most likely still appears to be a straight line.

Departure Airport Information:

Arrival Airport Information:

Facts about King County International Airport (BFI):

• Boeing Field had scheduled passenger flights on West Coast Airlines Douglas DC-9s and Fairchild F-27s to Idaho, Oregon, Washington, northern California, western Montana, northern Utah and to Calgary.
• The furthest airport from King County International Airport (BFI) is Tôlanaro Airport (FTU), which is located 10,775 miles (17,341 kilometers) away in Tôlanaro, Madagascar.
• The closest airport to King County International Airport (BFI) is Renton Municipal Airport (RNT), which is located only 5 miles (8 kilometers) ESE of BFI.
• Because of King County International Airport's relatively low elevation of 21 feet, planes can take off or land at King County International 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.
• The initial assembly of the 737 was at Boeing Field in the 1960s because the factory in Renton was at capacity building the 707 and 727.
• In addition to being known as "King County International Airport", another name for BFI is "Boeing Field".
• King County International Airport (BFI) has 2 runways.
• Boeing Field as seen from the Air Traffic Control Tower
• Except for the World War II period, when it was taken over by the U.S.

Facts about Philadelphia International Airport (PHL):

• Beginning in 1940 the Coatesville-based Rising Sun School of Aeronautics performed primary flight training at the airport under contract to the Air Corps.
• As a benefit to students, local schools including The University of Pennsylvania, Villanova University, Swarthmore College, Haverford College and Saint Joseph's University traditionally operate transportation shuttles to the airport during heavy travel periods such as spring and Thanksgiving breaks.
• Because of Philadelphia International Airport's relatively low elevation of 36 feet, planes can take off or land at Philadelphia International 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.
• The second study, the PHL Capacity Enhancement Program has a much larger scope and is considering more drastic ways to increase runway capacity at PHL.
• Terminal B/C modernization was completed in 1970, Terminal D opened in 1973 and Terminal E in 1977.
• Starting in 1925 the Pennsylvania National Guard used the PHL site as a training airfield.
• The furthest airport from Philadelphia International Airport (PHL) is Margaret River Airport (MGV), which is located 11,734 miles (18,884 kilometers) away in Margaret River, Western Australia, Australia.
• Philadelphia International Airport (PHL) has 4 runways.
• Today Philadelphia International Airport is one of the busiest airports in the world and among the fastest growing in the United States.
• The closest airport to Philadelphia International Airport (PHL) is Philadelphia Seaplane BaseChandler Field (PSQ), which is located only 3 miles (5 kilometers) WSW of PHL.