(NEXSTAR) – Flight delays, long security lines and ground stops could all get worse this week as some essential airport workers receive their final paycheck under the ongoing government shutdown.

While the government is shut down, air traffic controllers and Transportation Security Administration agents are expected to work without pay. The expectation is they'll be paid eventually, when the government is back up and running.

But during the record-long 35-day shutdown in 2019, many airport workers started calling in sick as they started to miss paychecks.

On Wednesday, the shutdown entered its third week. Air traffic controllers and TSA security screeners have already received their final paycheck for the foreseeable future. TSA agents received a partial paycheck on Oct. 10, Forbes reports. Air traffic controllers have also received their final installment of partial pay, their union

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