With the secretary of transportation warning that Thanksgiving week could end up being an immensely inconvenient one for air travelers, a potentially troubling hors d’oeuvre has been evident at Philadelphia International Airport.

According to FlightAware, more than 30 flights were delayed and 18 were canceled at PHL on Wednesday, though that number is expected to drop to eight on Thursday.

More than 100 flights are canceled or delayed at Philadelphia International Airport Monday as the nation enters its fourth day of flight reductions.

Reducing the number of flights nationwide is intended to relieve some pressure on air traffic controllers and maintain safe air travel. Most controllers are working mandatory overtime six days a week during the shutdown without pay, and some are taking second jobs to pay their bills, the National Air Traffic Controllers Association has said.

There are 14 cancellations, and seven delays as of 9:30 a.m., according to FlightAware. However, there have been more than 1,200 cancellations nationwide. Those numbers are much better than the past several days, when the FAA ordered flight reductions due to staffing shortages in control towers due to the shutdown.

The FAA has cut flights as air traffic controllers continue to work without pay at PHL and around the country.