A set of daily tracks from March 1 to March 18, 2018, giving a representation of North Flow and South Flow departure and arrivals. To make sense of these we suggest reading our article on runways and flow. People who complain about the flight concentration immediately notice the pattern to ‘the funnel’, ie. the points
Intro Sea-Tac is a Category IIIb certified airfield, allowing operations in all but the worst conditions, 24/7/365. There are three runways in the modern configuration beginning in 1956: Position Year Built North End/South End Length (feet) 1 East 1961 16L 34R 11,901 2 Center 1970 16C 34C 9,426 3 West 2008 16R 34L 8,500 Runways
2018-03-01
These flight track maps from the Port of Seattle show aircraft arrival, departure, and overflight paths at Seattle-Tacoma International Airport on March 1–2, 2018. On March 1, the airport operated predominantly in South Flow (87% of operations, 953 flights), with a brief period of North Flow (13%, 145 flights); on March 2, all 1,118 operations were conducted entirely in South Flow. The maps illustrate how flight corridors shift direction depending on the flow configuration, affecting which surrounding communities—such as those north of the airport near Shoreline and Mountlake Terrace versus those to the south near Auburn and Pacific—experience the greatest noise exposure.
2018-03-01
These flight track maps from the Port of Seattle show aircraft arrival, departure, and overflight paths at Seattle-Tacoma International Airport on March 1–2, 2018. On March 1, the airport operated predominantly in South Flow (87% of operations, 953 flights), with a brief period of North Flow (13%, 145 flights); on March 2, all 1,118 operations were conducted entirely in South Flow. The maps illustrate how flight corridors shift direction depending on the flow configuration, affecting which surrounding communities—such as those north of the airport near Shoreline and Mountlake Terrace versus those to the south near Auburn and Pacific—experience the greatest noise exposure.