Which airports do not have departing or arriving flights?
SELECT AirportName FROM Airports WHERE AirportCode NOT IN (SELECT SourceAirport FROM Flights UNION SELECT DestAirport FROM Flights)
SELECT AirportName FROM Airports WHERE AirportCode NOT IN (SELECT SourceAirport FROM Flights UNION SELECT DestAirport FROM Flights)
[{'AirportName': 'Phillips AAF '}, {'AirportName': 'Municipal '}, {'AirportName': 'Dyess AFB '}, {'AirportName': 'Municipal '}, {'AirportName': 'Virginia Highlands '}, {'AirportName': 'Ada '}, {'AirportName': 'Adak Island Ns '}, {'AirportName': 'Lenawee County '}, {'AirportName': 'Municipal '}, {'AirportName': 'Municipal '}, {'AirportName': 'Ainsworth '}, {'AirportName': 'Akhiok SPB '}, {'AirportName': 'Spb '}, {'AirportName': 'Akiak '}, {'AirportName': 'Colorado Plains Regional Airport '}, {'AirportName': 'Akron/canton Regional '}, {'AirportName': 'Fulton International '}, {'AirportName': 'Akutan '}, {'AirportName': 'Alakanuk '}, {'AirportName': 'NAS '}, {'AirportName': 'Holloman AFB '}, {'AirportName': 'Municipal '}, {'AirportName': 'Municipal '}, {'AirportName': 'Albany NAS '}, {'AirportName': 'Dougherty County '}, {'AirportName': 'Albany International '}, {'AirportName': 'Albany '}, {'AirportName': 'Albert Lea '}, {'AirportName': 'Albuquerque International '}, {'AirportName': 'Aleknagik '}, {'AirportName': 'Aleneva '}, {'AirportName': 'Thomas C Russell Fld '}, {'AirportName': 'Alexandria International '}, {'AirportName': 'Esler Field '}, {'AirportName': 'Alexandria '}, {'AirportName': 'Alexandria Bay '}, {'AirportName': 'Algona '}, {'AirportName': 'International '}, {'AirportName': 'George Downer '}, {'AirportName': 'Alitak SPB '}, {'AirportName': 'Allakaket '}, {'AirportName': 'Alliance '}, {'AirportName': 'Gratiot Community '}, {'AirportName': 'Alpena County Regional '}, {'AirportName': 'Alpine '}, {'AirportName': 'Alton '}, {'AirportName': 'Altus AFB '}, {'AirportName': 'Municipal '}, {'AirportName': 'Alyeska '}, {'AirportName': 'Rick Husband Amarillo International '}, {'AirportName': 'Tradewind '}, {'AirportName': 'Ambler '}, {'AirportName': 'Amchitka '}, {'AirportName': 'Municipal '}, {'AirportName': 'Ames '}, {'AirportName': 'Zahns '}, {'AirportName': 'Amook '}, {'AirportName': 'Anacortes '}, {'AirportName': 'USN Heliport '}, {'AirportName': 'Orange County Steel Salvage Heliport '}, {'AirportName': 'Anaktuvuk '}, {'AirportName': 'Elmendorf Afb '}, {'AirportName': 'Ted Stevens Anchorage International Airport '}, {'AirportName': 'Merrill Field '}, {'AirportName': 'Municipal '}, {'AirportName': 'Anderson '}, {'AirportName': 'Andrews '}, {'AirportName': 'Angel Fire '}, {'AirportName': 'Tri-State Steuben Cty '}, {'AirportName': 'Angoon '}, {'AirportName': 'Rollang Field '}, {'AirportName': 'Aniak '}, {'AirportName': 'Anita Bay '}, {'AirportName': 'Municipal '}, {'AirportName': 'Lee '}, {'AirportName': 'Annette Island '}, {'AirportName': 'Anniston Metropolitan '}, {'AirportName': 'Ft Mcclellan Bus Trml '}, {'AirportName': 'Reilly AHP '}, {'AirportName': 'Anthony '}, {'AirportName': 'Antlers '}, {'AirportName': 'Anvik '}, {'AirportName': 'Municipal '}, {'AirportName': 'Apple Valley '}, {'AirportName': 'Outagamie County '}, {'AirportName': 'Municipal '}, {'AirportName': 'Arcata '}, {'AirportName': 'Arctic Village '}, {'AirportName': 'Downtown '}, {'AirportName': 'Ardmore Municipal Arpt '}, {'AirportName': 'US Army Heliport '}, {'AirportName': 'Artesia '}, {'AirportName': 'Asbury Park '}, {'AirportName': 'Ashland '}, {'AirportName': 'Ashley '}, {'AirportName': 'Aspen '}, {'AirportName': 'Astoria '}, {'AirportName': 'Athens '}, {'AirportName': 'Ohio University '}, {'AirportName': 'McMinn County '}]