Laguardia Airport Closed as 163 Delays, 10 Cancellations Mount
LaGuardia airport closed to normal flow on May 12, 2026, as the airport logged 163 delays and 10 cancellations for 173 total disruptions. Endeavor Air accounted for the heaviest hit, with 66 delays and seven cancellations that appeared on departure boards as Delta flights.
LaGuardia and Delta Connection
Endeavor Air operates as Delta Connection, and the source says every one of its seven cancellations showed up as a Delta flight on boards. Delta customer service handled rebooking for those cancellations, leaving affected passengers to work through the airline rather than the regional carrier.
Delta Air Lines also had 17 delays at LaGuardia, while American Airlines posted 30 delays and Southwest Airlines had 19. Republic Airways added 14 delays, and Jazz Aviation recorded two cancellations and three delays.
Routes Touched at LaGuardia
The disruptions reached flights tied to Toronto Pearson, Miami International, Chicago O’Hare, Dallas–Fort Worth, Orlando International, Raleigh-Durham, and Hartsfield-Jackson Atlanta. That spread meant the day’s trouble was not isolated to one destination bank or one airline group.
LaGuardia is a slot-controlled airport limited to 71 slot pairs per hour, and the source places May 12 on Day 42 of the United States aviation crisis. The airport handles 31 million annual passengers, a scale that makes a single high-disruption day harder to absorb for travelers trying to rebook or connect onward.
May 12 at LaGuardia
The source says the day was among the most disrupted at LaGuardia since the FAA imposed emergency staffing protocols in April. Memorial Day was 13 days away, leaving travelers with a short runway before one of the busiest travel periods on the calendar.
For passengers, the practical takeaway was to check whether a Delta-branded cancellation was actually an Endeavor Air flight and to route rebooking through Delta customer service. With 173 disruptions recorded in one day, the burden fell most heavily on travelers whose flights were already scheduled through LaGuardia’s limited slot system.
