LaGuardia Airport runway sinkhole closes Runway 4/22 on May 20 2026

A sinkhole was found on Runway 4/22 at LaGuardia Airport on May 20, 2026. This is the second major ground issue in the area in just one week.

A sinkhole discovered during a routine inspection on Wednesday morning has forced the closure of a primary runway at LaGuardia Airport, causing widespread flight delays and cancellations. The pit appeared near Runway 4/22, one of only two main routes for arrivals and departures at the busy airport.

The discovery, made around 11 a.m. by Port Authority crews, immediately triggered an emergency response with engineering and construction teams dispatched to assess the situation and begin repairs. This disruption has directly impacted travelers, with reports of flights being pushed back significantly or canceled altogether. One veterinarian from Maine, quoted by the New York Post, expressed frustration over her connecting flight being canceled after hours of delays.

The closure of Runway 4/22, a vital artery for domestic travel at LaGuardia, has created a ripple effect. The Federal Aviation Administration reported by 3 p.m. EST that a traffic management program was in place for arriving flights due to expected thunderstorms, leading to average delays of 1 hour and 37 minutes for those planes.

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This incident echoes a recent concern about ground instability in the region. Just last week, a separate sinkhole emerged on the Long Island Expressway, raising questions about underlying geological conditions. While the New York Post notes this is the second sinkhole in the area, Newsweek highlights that Runway 4/22 is one of LaGuardia's primary arrival and departure routes, with the airport possessing only two such runways.

LaGuardia Airport itself has a complex history, built on reclaimed land from the bay in the 1930s. This area was once home to various structures, including homes, hotels, and an amusement park. The airport operator confirmed the sinkhole's discovery during its daily airfield inspection. This latest event follows an unrelated incident on the same runway nearly two months ago, when an Air Canada flight struck a Port Authority fire truck.

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