President Donald Trump on Wednesday night signed a bill that reopened the government after 43 days, paving the way for airlines to restore regular flight schedules and air traffic controllers, who have not been receiving pay as they worked through the shutdown, to return to work.

But it remains unclear when full flight schedules and paychecks will be restored after the Federal Aviation Administration was forced to mandate flight restrictions at 40 high-traffic airports last week. On Wednesday night, the FAA ordered that cancellations would remain at 6% on Thursday, after two days at that rate and an initial plan to ramp up to 10% by Friday.

As of Thursday morning, nearly 1,000 flights within the U.S. had already been canceled for the day, and more than 900 were delayed, according

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