What to know about canceled flights across the U.S.:

Airlines are expected to cancel 6% of their flights at 40 of the busiest airports in the U.S. on Tuesday to comply with an order from the Federal Aviation Administration amid the government shutdown — an increase from earlier 4% cutbacks.

Officials said the FAA order was an effort to address strain on the national airspace system as the agency dealt with a shortage of air traffic controllers.

More than 2,100 flights were canceled Monday.

The FAA-ordered flight cuts may ultimately ramp up to 10% by Friday.

5:06 AM

Flight issues may linger even after shutdown ends

Even with the Senate reaching a deal that could soon end the shutdown, the impact on air travel is likely to linger. Transportation Secretary Sean Duffy ha

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