More than 100 flights canceled, dozens delayed at Logan as airlines recover from ground stop

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Operations at Logan appeared to be improving Sunday, just three days after the nation’s longest ground stop in 25 years. There were 107 flights canceled and more than 60 delayed…

More than 100 flights scheduled to fly into and depart from Logan International Airport were canceled as of Sunday morning as airlines continue to recover after a nationwide ground stop forced thousands of flight cancellations and disrupted travel around the world.

Operations at Logan appeared to be improving Sunday, just three days after the nation’s longest ground stop in 25 years. There were 107 flights canceled and more than 60 delayed Sunday morning, according to the flight tracking website, FlightAware. On Saturday, nearly 250 flights were canceled and more than 200 were delayed.

Massport expects operations at Logan to return to normal by Monday, Jennifer Mehigan, a spokesperson for the agency, said Saturday. The U.S. air travel schedule should be back to normal by the end of Sunday, Federal Aviation Administration Administrator Bryan Bedford told reporters in Washington on Saturday.

The problem began Friday when a contractor was replacing a section of the air traffic control system’s old copper wire with new fiber wire, somehow causing the system to overload, Transportation Secretary Sean Duffy said. This led to “intermittent” communications and radar gaps, prompting the government to shut down air traffic for more than four hours.

The ground stop was lifted at around 8:15 p.m. Friday. It was the first nationwide halt since January 2023, when a key notification system malfunctioned, and the second since the Sept. 11, 2001, terrorist attacks.

Material from previous Globe stories and the Associated Press was used in this report.

Allyson Chiu can be reached at allyson.chiu@globe.com. Follow her on X @_allysonchiu.

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