Direct answer: The 40 airports likely to have reduced flights are those widely reported as impacted by the FAA’s 10% capacity cuts during the current federal government shutdown. A commonly cited list from multiple outlets includes major hubs such as Atlanta (ATL), Boston (BOS), Chicago O’Hare (ORD) and Midway (MDW), Dallas/Fort Worth (DFW) and Love Field (DAL), Denver (DEN), Los Angeles (LAX) and its counterpart across town (LGA is often listed separately), New York JFK and Newark (EWR), San Francisco (SFO) and San Diego (SAN), Seattle–Tacoma (SEA), Miami (MIA), Orlando (MCO), Philadelphia (PHL), Washington-area airports (Dulles IAD and Reagan National DCA), Hartford/Bradley (BDL) in some reports, and several others spread across the country. Important: the exact 40-airport roster can vary slightly between official notices and media reports, and the list may be updated as operational needs change. Please check the latest official FAA announcements or your airline for the precise, current list and any individual flight impacts before travel.
