LaGuardia International Airport closed Runway 4 on May 20, 2024, after inspectors discovered a sinkhole on the pavement [1], [2].
The closure of one of the airport's only two runways [3] creates a significant bottleneck for air traffic in New York City. This reduction in capacity typically leads to cascading flight delays and cancellations across the regional network.
Officials from the Port Authority of New York and New Jersey identified the sinkhole during a routine inspection [1], [4]. The agency said the hole posed a safety hazard to aircraft, necessitating an immediate shutdown of the strip [1], [4].
Flight operations have been disrupted since the closure began on May 20, 2024 [1]. The Port Authority said the loss of the runway would impact scheduling and passenger flow at the busy terminal.
Repair crews are working to stabilize the ground and resurface the affected area. Current estimates from the Port Authority indicate the runway is expected to remain closed until the morning of Thursday, May 23, 2024 [3].
LaGuardia operates with only two runways [3]. When one is taken out of service, the airport must manage all arrivals and departures through a single channel, which limits the number of hourly flights the facility can safely handle.
“The sinkhole was discovered during a routine inspection and posed a safety hazard.”
The closure of Runway 4 highlights the fragility of LaGuardia's infrastructure. Because the airport relies on only two runways, any single-point failure—such as a sinkhole—immediately reduces takeoff and landing capacity by half, leaving the Port Authority with little operational redundancy to absorb the impact without disrupting the broader U.S. aviation corridor.
