Why flight disruptions could linger even after the government shutdown ends

WASHINGTON — Flight disruptions are likely to continue even after the government reopens , airlines and aviation regulators warned, as airlines cancelled scores of flights on Tuesday.

The Federal Aviation Administration ordered airlines to reduce air traffic at 40 of the nation's busiest airports, with cuts still ramping up to 10% of flights by Friday. The agency has been dealing with persistent staffing shortages of air traffic controllers , who are required to work without pay during the shutdown, which is now the longest in U.S. history at 42 days and counting.

This past weekend, the FAA reported staffing shortages at dozens of facilities, prompting the agency to slow air traffic to relieve pressure on air traffic controllers who did show up to work. On Tuesday, airlines cancele