King County International Airport, or Boeing Field (BFI) as it is commonly known, is the largest business and general aviation airport in the Seattle area. Â If you are flying your Gulfstream or Challenger in to Seattle, this is the place you areÂ likely going to be landing.
There are a few scheduled services in and out of this airport, which include Kenmore Air Express and cargo flights with UPS & DHL (FedEx is based at SeaTac). Â The major traffic at this airport comes from general aviation, business jets via the Fixed Base Operators (FBOs), andÂ Boeing test flights.
Because of this diversity, BFI is a great place to go aircraft spotting.