Nonstop flight route between Seattle, Washington, United States and West Chicago, Illinois, United States:

About this route:

A direct, nonstop flight between King County International Airport (BFI), Seattle, Washington, United States and DuPage Airport (DPA), West Chicago, Illinois, United States would travel a Great Circle distance of 1,702 miles (or 2,739 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 DuPage 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):

• 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.
• Helijet, a helicopter airline based at Vancouver International Airport in British Columbia, scheduled Sikorsky S-76s to the Victoria Harbour Heliport in British Columbia and on to Helijet's Vancouver Harbour Heliport near downtown Vancouver, B.C.
• 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.
• 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.
• In addition to being known as "King County International Airport", another name for BFI is "Boeing Field".
• The August 1946 OAG shows 24 United Airlines weekday departures, 10 Northwest and two or three Pan Am DC-3s to Juneau via Annette Island.
• King County International Airport (BFI) has 2 runways.
• 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.

Facts about DuPage Airport (DPA):

• The furthest airport from DuPage Airport (DPA) is Margaret River Airport (MGV), which is located 11,056 miles (17,792 kilometers) away in Margaret River, Western Australia, Australia.
• DuPage Airport sits on 1,200 acres and is the only general aviation airport in Illinois with four active runways, two ILS approaches, a 24-hour FAA air control tower, and over 40 aviation and non-aviation support businesses.
• The closest airport to DuPage Airport (DPA) is Chicago/Aurora Municipal Airport (AUZ), which is located only 15 miles (24 kilometers) SW of DPA.
• Because of DuPage Airport's relatively low elevation of 759 feet, planes can take off or land at DuPage 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.
• In 1946, with the war over, the Navy sold the airport to DuPage County for $1.
• In June 2010, the board of the DuPage National Technology Park, an 800-acre technology park that secured a $34 million state grant called for the dissolution of their organization.
• DuPage Airport (DPA) has 4 runways.
• A year after the Navy began operations, Howard Aircraft Corporation opened a factory east of the airport across the road.