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Transportation Secretary Sean Duffy admitted he changed his wife’s flight from Newark to LaGuardia just hours after claiming the troubled New Jersey airport was safe for the public.

Several times over the last year, Newark controllers lost radar or radio service, leaving them unable to talk with planes they were tracking.

The incident follows recent radar outages at New Jersey’s Newark Airport due to the FAA’s antiquated infrastructure, adding to safety concerns about flying in U.S. airspace.

Air traffic controllers in Denver had to scramble to use backup frequencies after their main communications lines went down for 90 seconds earlier this week in the latest Federal Aviation Administration equipment failure.

Secretary of Transportation Sean Duffy says glitches in the system show an upgrade is needed to the technology of the nation’s air traffic control system.

The safety nightmare continues at Newark Liberty International Airport, where all air traffic control will be manned by just one fully qualified person during its busiest time tonight, The Post can exclusively reveal.

Staff shortages and equipment failures at Newark Liberty International Airport have raised safety concerns in recent weeks.