LaGuardia Sinkhole Keeps Key Runway Closed as Repairs Continue

One of LaGuardia Airport’s two runways remains out of service after a sinkhole was discovered near Runway 4/22 on Wednesday, leaving airlines racing to manage delays and cancellations as engineers work to reopen the strip before the peak Friday travel rush.

Runway 4/22 Closure Extends Into Thursday Operations

Publicly available information from aviation trackers and airport operations reports indicates that Runway 4/22 at LaGuardia Airport is still closed as of Thursday, May 21, following the discovery of a sinkhole during a routine morning inspection the previous day. The disruption began around 11 a.m. on Wednesday, when inspection crews identified the ground depression near the runway and prompted an immediate shutdown of the strip for emergency assessment and repairs.

The closure affects one of only two runways at the Queens airport, sharply reducing capacity at one of the United States’ busiest domestic hubs. Coverage from national news outlets and airline operations updates describe a cascading effect on the schedule, with aircraft departure slots constrained and arrivals metered to avoid overloading the single remaining runway.

According to recent airline advisories, carriers at LaGuardia are operating on modified schedules while waiting for confirmation that Runway 4/22 is structurally sound and safe to return to service. Preliminary expectations circulating in industry briefings suggest that the runway could reopen ahead of Friday morning departures, although no precise time has been publicly posted.

Hundreds of Flights Affected and Delays Still Mounting

Data compiled from flight tracking services shows that the sinkhole and subsequent runway closure have already led to hundreds of cancellations and delays into and out of LaGuardia since Wednesday. Earlier figures cited by outlets drawing on FlightAware data pointed to roughly 200 flight cancellations and a similar number of delays on the first day of the disruption, with average departure holds approaching or exceeding 90 minutes at times.

Those impacts have continued into Thursday, as airlines work through aircraft and crew imbalances created by the sudden loss of runway capacity. Some carriers have encouraged travelers to rebook to alternate New York City airports, such as John F. Kennedy International Airport or Newark Liberty International Airport, particularly for trips with tight connections that are more vulnerable to knock-on delays.

Travel industry coverage notes that the sinkhole emerged during a period of unsettled weather in the New York region, compounding the effect on passengers. The Federal Aviation Administration’s traffic management updates have reflected a combination of weather-related programs and restrictions linked to the reduced runway availability, making it difficult to separate the precise share of delays attributable to each factor but leaving overall disruption clearly elevated.

Repair Work Focuses on Stabilizing Subsurface Conditions

Airport engineering and construction teams have been working around the clock since Wednesday to stabilize the affected area near Runway 4/22. Publicly available statements and technical summaries referenced in news coverage describe the response as an emergency pavement and subsurface repair operation, with crews excavating and backfilling the depression before rebuilding the surface layers used by aircraft.

LaGuardia’s airfield sits on heavily engineered ground that includes historic fill and waterfront reclamation, and aviation analysts note that such environments can be more prone to localized settlement issues. In the current case, the sinkhole’s proximity to an active runway has required a conservative safety posture, keeping the strip fully closed instead of partially open while work is underway.

Industry reports indicate that engineering teams are carrying out inspections not only at the visible sinkhole site but also in adjacent pavement and underground utility corridors, looking for any signs of voids or water infiltration that could pose future risks. Only after those checks are complete, followed by structural testing of the repaired surface, can the runway be cleared for use.

Reopening Expected Before Friday but Timing Still Uncertain

As of Thursday afternoon, public-facing information from airport and airline operations channels points to a tentative expectation that Runway 4/22 will be returned to service before the bulk of Friday’s departures. Some travel advisory sites and aviation news outlets describe internal planning scenarios that assume a runway reopening window late Thursday night or early Friday, giving carriers time to reset schedules heading into one of the busiest days of the week.

However, no firm reopening time has appeared in official notices to air missions or in widely distributed airline schedules. Travel coverage emphasizes that any timeline remains contingent on the pace of repairs, successful inspections, and ongoing coordination with federal air traffic managers. Should work take longer than anticipated, airlines may need to extend schedule adjustments and waivers into the weekend.

For travelers with LaGuardia flights scheduled on Thursday evening or Friday, most publicly available advisories recommend monitoring flight status frequently and remaining prepared for last minute gate changes or rebookings. Passenger experience reports shared on social platforms and travel forums over the past 24 hours describe crowded terminals, long lines at customer service counters, and tight seat availability on alternative flights, especially to major domestic hubs.

What Travelers Should Expect in the Next 24 to 48 Hours

Based on how similar runway disruptions have unfolded at constrained urban airports, travel analysts expect LaGuardia’s operations to remain fragile even after Runway 4/22 reopens. Aircraft and crew will still be out of position, and Friday’s traditionally heavy business and leisure demand may strain the system as carriers work to absorb displaced passengers from earlier cancellations.

Published guidance from airlines serving LaGuardia generally encourages travelers to arrive early, build in additional time for security screening, and use digital tools such as mobile apps to track gate assignments and schedule changes. Same day standby options may be limited on popular routes, and some passengers may find it easier to accept rebookings from LaGuardia to alternate New York area airports if offered.

For those still in the planning stage, recent coverage from travel industry publications suggests considering flexible itineraries that allow for adjustments over the next few days, particularly for nonessential travel. With runway repairs progressing and a tentative reopening expected before Friday flights, the worst of the sinkhole-related disruption may be nearing an end, but LaGuardia’s flight schedule is likely to remain less predictable than usual as the airport transitions back to full runway operations.