Boeing Field

The Boeing Company has facilities at the airport. Final preparations for delivery of Boeing 737 aircraft after the first test flight are made at Boeing Field.[10] Boeing facilities at the airport have also included a paint hangar[11] and flight test facilities.[12] The initial assembly of the 737 was at Boeing Field in the 1960s because the factory in Renton was at capacity building the Boeing 707 and Boeing 727. After 271 aircraft, production moved to Renton in late 1970.[13][14]

The Museum of Flight is on the southwest corner of the field. Among the aircraft on display is an ex-British Airways Concorde, lent to the museum from BA, a supersonic airliner that landed at Boeing Field on its first visit to Seattle on November 15, 1984.[15] Aircraft on the airfield can be seen from the museum.

The King County International Airport contracts with the King County Sheriff's Office for police services. Deputies assigned to the airport wear a mix of both Police and Fire uniforms, turnouts etc., which includes single Police, Fire/ARFF patch, and drive King County International Airport Police patrol cars. There are currently 17 patrol officers/sergeants and one chief assigned full-time to the airport. Officers assigned to the airport are also required to obtain a Washington State Fire Fighter One certification and an Emergency Medical Technician certification.

In 1945, Northwest Airlines was operating all flights from the airport with 21-passenger seat Douglas DC-3s with direct service to such major cities as Minneapolis/St. Paul, MN, Milwaukee, Chicago, Detroit and New York City with these eastbound flights making intermediate stops enroute at smaller cities such as Spokane, Great Falls, Missoula, Helena, Billings and other small cities.[16] United Airlines was operating Douglas DC-6, Douglas DC-4 and Douglas DC-3 service from Boeing Field in 1947 with direct, no change of plane flights to San Francisco, Los Angeles, Salt Lake City, Denver, Boise, Oakland, Burbank, San Diego, Vancouver, B.C., Chicago, Cleveland, Washington, D.C., Philadelphia and New York City.[17] At this same time in 1947, United was also operating 20 nonstop flights on a daily basis to Portland, OR as well as a daily nonstop DC-6 flight to San Francisco named "The California" which continued on to Los Angeles on a one stop basis with the airline also operating daily direct service from the airport to smaller cities in Washington state, Oregon, California, Idaho, Nebraska and Iowa.[18] In 1950, Pan American World Airways (Pan Am) was operating weekly nonstop Boeing 377 Stratocruiser service from Boeing Field nonstop to Honolulu with this flight continuing on to Manila where connections were offered to Pan Am Douglas DC-4 flights to Hong Kong and Singapore.[19] Pan Am was also operating Douglas DC-4 service from the airport in 1950 nonstop to Fairbanks, AK with direct one stop service to Nome, AK as well as DC-4 nonstop service to Ketchikan, AK (via the Annette Island Airport) with flights continuing on to Juneau, AK followed by Whitehorse, Yukon in Canada and then on to Fairbanks.[20]

In later years, West Coast Airlines operated scheduled passenger flights from Boeing Field to Idaho, Oregon, Washington state, northern California, western Montana, northern Utah, and Calgary in Alberta. The airline's April 1968 timetable lists nonstop service to Aberdeen, WA/Hoquiam, WA, Boise, ID, Olympia, WA, Pasco, WA, Portland, OR, Salt Lake City, UT, Spokane, WA, Tacoma, WA, Wenatchee, WA and Yakima, WA operated with primarily with Fairchild F-27 propjets as well as Douglas DC-3 and Piper Navajo prop aircraft but also with Douglas DC-9-10 jets to Portland, Boise and Salt Lake City .[21] West Coast, which had its headquarters in the Seattle area and operated all of its flights from Boeing Field, merged with Pacific Air Lines and Bonanza Air Lines to form Air West (later renamed Hughes Airwest following its acquisition by Howard Hughes in 1970) which continued serving Boeing Field until it moved its passenger service to Seattle-Tacoma International Airport (SEA) in 1971. Before the move to SEA, in January 1971 Hughes Airwest was operating nonstop McDonnell Douglas DC-9-30 jet service from the airport to Portland, Spokane and Pasco as well as direct, no change of plane DC-9-30 service to Boise, Calgary, Salt Lake City, Las Vegas, Twin Falls, Lewiston, Phoenix and Tucson, and was also operating Fairchild F-27 turboprop service from BFI at this time to Astoria, Bend, Ephrata, Hoquiam, Klamath Falls, Lewiston, Olympia, Pasco, Portland, Pullman, Sacramento, Spokane, Tacoma, Walla Walla, Wenatchee and Yakima.[22]

Aeroamerica, an airline based at Boeing Field from 1971 to 1982 which operated Boeing 707 and Boeing 720 jetliners, flew nonstop to Spokane, Washington in 1978.[23] Air Oregon, a commuter airline, operated Swearingen Metro propjets in 1979 nonstop to its hub in Portland, Oregon.[24] Helijet, a helicopter airline based at Vancouver International Airport in British Columbia, operated scheduled Sikorsky S-76 helicopter flights to the Victoria Harbour Heliport in British Columbia with direct one stop service to Helijet's Vancouver Harbour Heliport located in the downtown Vancouver, B.C. area.[25]

JSX began service between Boeing Field and Oakland International Airport on July 1, 2019 using Embraer 135 regional jets.[26] As a result of the COVID-19 pandemic, JSX announced in April 2020 that it would indefinitely cease its flights from Boeing Field.[27]

The U.S. Justice Department filed a lawsuit against King County in 2020 to allow Immigration and Customs Enforcement (ICE) deportation flights to leave from Boeing Field. The county had previously halted the practice, forcing the flights to be redirected to Yakima Air Terminal.[28]