Nonstop flight route between Banff, Alberta, Canada and Seattle, Washington, United States:

About this route:

A direct, nonstop flight between Banff Airport (YBA), Banff, Alberta, Canada and King County International Airport (BFI), Seattle, Washington, United States would travel a Great Circle distance of 396 miles (or 638 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 Banff Airport and King County 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 Banff Airport (YBA):

• The furthest airport from Banff Airport (YBA) is Tôlanaro Airport (FTU), which is located 10,405 miles (16,746 kilometers) away in Tôlanaro, Madagascar.
• Because of Banff Airport's high elevation of 4,583 feet, planes must typically fly at a faster airspeed in order to takeoff or land at YBA. Combined with a high temperature, this could make YBA a "Hot & High" airport, where the air density is lower than it would otherwise be at sea level.
• Banff Airport (YBA) currently has only 1 runway.
• The closest airport to Banff Airport (YBA) is Fairmont Hot Springs Airport (YCZ), which is located 62 miles (100 kilometers) SSW of YBA.

Facts about King County International Airport (BFI):

• King County International Airport (BFI) has 2 runways.
• Passenger terminal, Boeing Field
• In addition to being known as "King County International Airport", another name for BFI is "Boeing Field".
• It is in the National Plan of Integrated Airport Systems for 2011–2015, which called it a primary commercial service airport.Federal Aviation Administration records say the airport had 34,597 passenger boardings in calendar year 2008, 35,863 in 2009 and 33,656 in 2010.
• 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 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.
• 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.
• Boeing Field as seen from the Air Traffic Control Tower
• Boeing Field/King County International Airport covers 634 acres at an elevation of 21 feet above mean sea level.
• 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.