Roughly 3,370 flights were delayed across the U.S. on Monday, Day 27 of the government shutdown , as more essential workers failed to show up to work.

In addition to the flight delays, 118 flights heading into or out of the U.S. were canceled Monday, according to flight tracking website FlightAware .

The delays come after backups at airports over the weekend. On Sunday, more than 8,700 U.S. flights were delayed , FlightAware data shows, as air traffic controller shortages rise . Such workers are set to miss their first full paychecks on Tuesday.

"They got their notice on Thursday and Friday. They get a notice of what they are going to be paid on Tuesday. And they got a big fat no paycheck is coming on Tuesday," Department of Transportation Secretary Sean Duffy told Fox

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