LaGuardia sinkhole closes runway and disrupts around 400 flights

Disruption overview

A sinkhole beside Runway 4/22 at LaGuardia Airport forced the closure of one of the airport's two runways on 20 May 2026, and by early evening on 21 May the disruption had grown to around 400 flights across cancellations and delays. With thunderstorms also reducing capacity across the New York area, airlines were left working through a single runway, and delays spread to JFK and Newark. Compensation is unlikely for most domestic US trips because the problem was caused by airport infrastructure, not the airline. Even so, carriers should still offer rebooking or refunds and care during long waits, and you can use AirHelp's free flight checker if your trip included an EU-operated segment that may fall under EC 261.

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Disruption details

A sinkhole beside Runway 4/22 forced the closure of one of LaGuardia Airport's two runways on 20 May 2026, leaving the New York airport operating at reduced capacity and disrupting around 400 flights by early evening on 21 May.

For passengers, this meant last-minute cancellations, longer waits, and missed connections across domestic and international itineraries. With only one runway still available, airlines had to cancel some services, retime others, and squeeze the rest of the schedule through a much tighter operation.

The Federal Aviation Administration ground-delay program also slowed arriving flights before they even left their origin airports. That added to the pressure for airlines already trying to keep planes, crews, and passengers moving through one of the busiest airspaces in the country.

By early evening on 21 May, the disruption looked like this:

• Around 200 flights had been canceled.

• About 200 more were delayed.

• Average departure delays had climbed to 90 minutes or more.

Some passengers were already seated on aircraft when departure times slipped again, while other flights were cut from the schedule so carriers could steady the rest of their operations. For travelers, that meant a mix of long waits at the gate, sudden schedule changes, and a growing risk of missing onward connections.

The runway outage became even harder to manage because thunderstorms were also moving through the New York metropolitan area. Weather-related restrictions were already reducing how many departures and arrivals controllers could safely handle each hour, so LaGuardia had even less room to recover once the runway shut.

The impact did not stop at LaGuardia. Knock-on disruption reached John F. Kennedy International Airport and Newark Liberty International Airport as airlines diverted or rerouted services in search of available capacity elsewhere in the region.

Airport engineers and emergency construction crews have remained on site, filling and reinforcing the void beside the runway. The exact cause has not been confirmed, but the problem is believed to involve erosion below the pavement shoulder.

There is still no reopening time for the closed runway, so LaGuardia is expected to operate below normal capacity for several days. Most major US carriers serving the airport have already issued travel waivers, giving passengers more flexibility to change itineraries without the usual fees.

Because this disruption was caused by airport infrastructure rather than an airline decision, compensation is unlikely for most domestic US trips. Although compensation is unlikely here, that doesn't mean you're without support. Your airline should still offer rebooking or refunds, as well as food, refreshments, communication support, and accommodation if you're stranded overnight. If your international journey included an EU-operated segment to or from the European Union, EC 261 may still apply to that part of the trip, and AirHelp's free flight checker is a simple way to understand your options.

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