The unions - which represent almost 20,000 air traffic controllers, 61,000 pilots and just under 50,000 flight attendants - said the temporary shuttering of airport screening checkpoints is likely to continue. Departure delays at Newark's airport is between 30 and 44 minutes due to an air traffic control program, FlightAware said in a message on its website.
"We are monitoring the ongoing delays at some airports", she said in an emailed statement.
The organization says that they're working to mitigate the impact by rerouting traffic and increasing the space between aircrafts as necessary.
"NATCA does not condone or endorse any federal employees participating in or endorsing a coordinated activity that negatively affects the capacity of the National Airspace System or other activities that undermine the professional image and reputation of the men and women we represent", Rinaldi said.More news: Venezuelan military: the muscle behind Maduro
The disruptions come the day after the U.S. Senate rejected two shutdown-ending bills as hundreds of thousands of federal workers missed a second paycheck on Friday. The head of the United States air traffic controllers' union complained that air traffic controllers are making mistakes which they haven't made in decades - all because of the stressful situation provoked by the shutdown. That said, it's hard to confirm the exact status of flights, so check with your airline and prepare to wait out delays on the tarmac and on the taxiway.
President Donald Trump announced on Friday afternoon that a deal has been reached to reopen the government for three weeks and pay workers.
Initiated on December 22, it's the longest government shutdown in American history - but there's no end in sight as President Trump continues to lock heads with congress over the funding of a border wall between the USA and Mexico.
VICE News' Alex Jaffe spoke to some federal workers about how the shutdown could impact USA national security.
The Federal Aviation Administration is seeing delayed flights at LaGuardia Airport in NY because of a shortage of air traffic control and TSA workers.More news: Video of United States teens taunting Native American draws fire
Scott Stephenson, an Oklahoma native, got a job as an Air Traffic Control Specialist at Capital Region International Airport in December 2018.
Pelosi tagged the president, writing: "stop endangering the safety, security and well-being of our nation".
"I've had to scratch the trip, eat the cost of a rental vehicle cancellation and now I'm starting over to figure out when I could get there", Hitt said in a telephone interview.
Bloomberg's Conor Sen argued that the flight stoppage and delays shows that "we've finally hit a pain point in the government shutdown that will bring about either legislation to end the shutdown or a crisis that impacts far more than the federal employees who have so far borne the brunt of the shutdown".
Flights out of Philadelphia and Newark were also delayed owing to shortages. It's unsafe, and we need to open the government, get them paid, get their support team there, our quality assurance people, our training teams, all of them there.More news: What's in Donald Trump's immigration proposal to end US shutdown?