A wave of flight disruptions swept across the United States today, with 2,545 delays and 69 cancellations recorded across domestic and international networks. American Airlines led all carriers with 406 delayed flights, while New York, Charlotte, Denver, and San Francisco emerged as the hardest-hit hubs. Regional feeder PSA Airlines recorded the most severe cancellation rate proportionally.
Yesterday, May 21, the system recorded 659 cancellations and 2,387 delays — 3,046 total disruptions — marking Day 51 of consecutive elevated aviation disruption since Good Friday, April 1. The streak has been driven by a combination of severe weather systems, the shutdown of Spirit Airlines in early May, FAA operational restrictions at Chicago O’Hare, and the lingering ripple effects of the global jet fuel crisis.
DFW Advises Passengers to Switch Terminals
At Dallas-Fort Worth, American Airlines’ primary hub, DFW Airport is actively directing passengers to check in at Terminal A instead of the usual Terminal C to ease congestion caused by ongoing construction. The airport stated: “To save time and avoid congestion in the construction area, American Airlines passengers with departures in Terminal C may check in, check bags and clear security at Terminal A then take the short walk or quick Skylink ride to Terminal C.”
TheTrav el.com reports that on Thursday alone American delayed 1,134 flights — nearly a third of its total operation. Southwest Airlines had more delays overall, recording 1,839.
East Coast Weather Adding Pressure

United Airlines issued a travel disruption warning covering six major East Coast airports, offering passengers flexible rebooking with waived change fees and fare differences for travel through May 26. KLM similarly flagged weather disruptions affecting flights into New York’s JFK, Newark, LaGuardia, and White Plains through today.
What Passengers Should Know
Despite the chaos, American Airlines projects 4.2 million customers across more than 40,000 flights between May 21 and 26 — and Aviation A2Z notes the carrier rolled out a restructured 13-bank schedule at DFW that has already reduced delays compared to April peaks. The FAA’s new capacity cap at O’Hare also appears to be having a moderating effect on that hub specifically.
Passengers facing cancellations are entitled under DOT regulations to a full cash refund to their original payment method. Those delayed three or more hours due to airline-caused issues are entitled to meal vouchers; overnight cancellations entitle travelers to hotel accommodation and ground transport.
