United Ground Stop Eases O’Hare Congestion (simpleflying.com)

United requested a temporary FAA ground stop on Saturday to limit arrivals at Chicago O’Hare and clear a backlog of departing flights after a nationwide air traffic control outage. The stop expired after 11 a.m.; nearly 10,000 flights had been canceled nationwide, with more than 3,000 cancellations reported Saturday.