Americans are facing terrible air travel delays on Sunday after the government shutdown entered its 40th day — with LaGuardia and Newark Liberty International airports among the hardest hit.

About 5,700 US flights were delayed on Sunday, with 1,857 cancellations, according to the FlightAware online tracking site.

LaGuardia led the outgoing delays with 252 flights being rescheduled, about 47% of total flights, the highest percentage in the nation.

Newark Liberty saw 224 departing flights delayed, more than one-third.

The average delay at Newark and LGA was about two hours and 15 minutes, the delay at JFK International Airport was 15 minutes.

All three airports cited FAA staffing issues due to the shutdown as the reason for the delays.

The delays at Newark come after the

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