The effects of the government shutdown were on full display at Orlando International Airport (OIA) on Friday, as most arriving flights were pushed back, while others never took off.

Passengers can expect average delays of nearly three hours, the FAA said, warning that at some point all flights into Florida’s busiest airport could be halted.

Starting Friday, Orlando International Airport must reduce flights under a new FAA emergency order aimed at easing stress on air traffic control.

Flights are delayed at Orlando International Airport due to an issue with staffing air traffic controllers, and a federal advisory says at some point Thursday night, there will be no certified air traffic controllers at all.

The FAA will reduce air traffic by 10% across 40 major markets starting Friday due to staffing shortages during the government shutdown.

"The reduction in flights is likely to impact passengers, and we ask travelers to check directly with their airlines regarding delays and cancellations," MCO said. "Orlando International Airport will be fully staffed to assist passengers as much as possible during this time."

As Americans prepare for Thanksgiving holiday travel, the government shutdown is likely to result in more airport delays due to a shortage of air traffic controllers.

Orlando International Airport is collecting donations to help airport workers impacted by the government shutdown. Donations can be dropped off at the airport until Friday, Nov. 7.