Dozens of flights are canceled or delayed at Philadelphia International Airport Monday as the nation enters its fourth day of flight reductions due to air traffic controller shortages and the government shutdown.

By noon Monday, flight tracking website FlightAware said more than 100 flights were delayed and more than 50 were canceled. Travelers are urged to check with their airline for the latest flight information.

On Nov. 7, the Federal Aviation Administration announced plans to reduce airline capacity by 10% across dozens of the country's busiest airports amid the ongoing government shutdown. In addition to dealing with staff shortages, air traffic controllers are currently working without pay.

The President of the National Air Traffic Controllers Association, or NATCA, talked to reporters Monday morning.

"To not pay someone for the work they have performed is un-American, and failing to pay that workforce that keeps our skies safe is not acceptable and it is not sustainable," NATCA President Nick Daniels said.

Last week, U.S. Transportation Secretary Sean Duffy said the move was meant to prevent a crisis and "keep the airspace safe."

People traveling out of PHL also need to account for potentially longer lines at security after the airport announced it would temporarily close the Terminal A-West and Terminal F TSA checkpoints.

Monday marks the 41st day of the government shutdown, the longest in U.S. history. A short-term funding measure passed in the Senate overnight with the support of eight Democrats, including Pennsylvania Sen. John Fetterman, signaling an end to the shutdown could be on the horizon.

More than 200 flights delayed, canceled at Newark Liberty International Airport

About 90 minutes north at Newark Liberty International Airport, more than 200 departing and arriving flights were impacted Monday morning. According to FlightAware, nearly 250 flights were delayed on Monday, and more than 90 were canceled by 2:45 p.m.

"We need to be back to normal"

It was a hectic Monday morning at PHL, where there were nearly 50 canceled flights before 7 a.m. Nikolas Roman was headed home to Philadelphia after a bachelor party in the Dominican Republic, but his connecting flight in Atlanta Sunday was canceled.

"Ended up spending a night in a hotel," Roman said. "Took the earliest one I got, fingers crossed that it wasn't going to get canceled." 

Roman made it home by Monday afternoon. The Schalks are still working on that. After two of their flights were canceled at Newark Airport, they drove to PHL, hoping they could catch a flight from Philly to Atlanta by the end of the day.

"It's a 14-hour drive so worst-case scenario, this flight gets delayed, we hop in the car and try to go as straight through as we can," Shannon Schalk said.

It was the couple's first time flying with their 6-month-old son.

"They need to get their act together, get us out," Collin Schalk said. "We need to be back to normal."