But amid the quickly spreading pandemic and mandatory stay-at-home orders covering some 80 million U.S. residents, airline executives, pilot-union leaders and federal transportation officials said they increasingly view as inevitable further sharp reductions from already-decimated schedules in passenger flights. U.S. airlines have already eliminated the vast majority of international flying and have announced plans to cut back domestic flying by as much as 40%. Travelers are staying home at even greater rates. The Transportation Security Administration reported that passenger flow at its checkpoints was down more than 80% Sunday from the same day a year earlier. On Monday, thousands of flights were canceled, in some cases because planes weren’t full enough to justify the trip, with passengers numbering in the single digits. Some planes that did take off have been emptier than ever before. For example, a flight between New York’s LaGuardia Airport and Washington DC had just three […]