Washington, April 28, 2026, 07:46 EDT
- The FAA put Atlanta, San Francisco, New York JFK, Nashville and Memphis on notice for possible traffic controls Tuesday as storms and construction squeezed U.S. airspace.
- FlightAware counted 7,198 delays and 620 cancellations on flights within, into or out of the United States on Monday.
- Chicago O’Hare remained the pressure point after 1,242 delays and 491 cancellations on Monday.
U.S. air travelers faced another day of rolling disruption Tuesday after the Federal Aviation Administration warned that major hubs could need ground stops or delay programs, extending a storm-and-construction squeeze that hit Chicago O’Hare hard a day earlier.
The issue now is not just one airport. Thunderstorms were forecast around Atlanta, Nashville and Memphis, while low ceilings, runway work and traffic limits remained in play at San Francisco, Seattle, Denver and New York JFK, according to the FAA’s Tuesday operations plan. A ground stop holds flights bound for an airport before they take off; a ground delay program gives flights later departure slots to slow arrivals.
The disruption matters because delays can travel faster than weather. A late aircraft in Chicago can leave a crew short in Dallas, a missed connection in Atlanta, or a gate conflict in New York. FlightAware showed 7,198 U.S.-linked delays and 620 U.S.-linked cancellations on Monday, part of a wider day in which 20,717 flights were delayed globally.
Early Tuesday, the system was not in collapse. But it was already showing strain, with FlightAware reporting 608 delays and 120 cancellations on flights within, into or out of the United States.
Chicago O’Hare logged 58 delays and 85 cancellations early Tuesday after a much heavier Monday, while Atlanta had 56 delays and four cancellations and JFK had 22 delays and one cancellation, FlightAware data showed.
The setup formed late Monday. An FAA plan showed a ground delay program at O’Hare, traffic restrictions for flights bound to Chicago because of thunderstorms, and earlier stops around Dallas-Fort Worth as weather moved through Texas. A later plan said Seattle and San Francisco were under delay programs tied to construction, while Memphis and Louisville had programs tied to thunderstorms.
O’Hare took the worst of it. FlightAware counted 1,242 delays and 491 cancellations at the airport Monday. Atlanta, the world’s busiest passenger airport and a core Delta hub, recorded 432 delays and eight cancellations, while New York JFK had 146 delays and two cancellations.
The competitive map is clear. Atlanta matters to Delta’s network, Dallas-Fort Worth is American Airlines’ largest hub with more than 900 peak daily departures, and Chicago splits traffic between American at O’Hare and Southwest at Midway. At San Francisco, United accounts for about half of passenger traffic and Alaska about 10%, making local restrictions a network issue for both carriers.
American Chief Executive Robert Isom had already flagged O’Hare as a fragile market. Without federal steps to ease congestion, the airport would have been “in a delay program for the very first flight of the day,” he said last week, while adding that American would defend its Chicago hub against United. Reuters
San Francisco is a separate problem. The FAA has restricted some landings there after runway repaving and a ban on certain side-by-side approaches, cutting maximum arrival rates to 36 flights an hour from 54. The airport has said roughly a quarter of arriving flights could be delayed at least 30 minutes.
Capacity is also political. Transportation Secretary Sean Duffy has pushed for funding to modernize air-traffic control, saying airlines sometimes schedule above what airports can handle and that better software could spread flights with “way less disruption.” Reuters
But the plan can cut both ways. If storms weaken or shift, some restrictions may never activate; if weather stacks on top of construction at SFO, taxiway work at JFK and late-running aircraft from Monday, cancellations can rise quickly because crews and aircraft fall out of sequence.
For passengers, U.S. refund rules are narrower than many assume. The Transportation Department says travelers are entitled to refunds when an airline cancels or significantly delays a flight and the traveler chooses not to fly, but airlines generally do not have to compensate domestic passengers simply because a flight is delayed or canceled.
