More than 400 flights canceled at O'Hare, Midway after hourslong nationwide ground stop

More than 400 flights were canceled at Chicago’s O’Hare and Midway airports on Saturday as airlines worked through disruption from a nationwide FAA ground stop the previous day. The four-hour stop followed a failure in the agency’s aging communications system and has left thousands of flights needing to get back on schedule. The FAA lifted the stop, but cancellations and delays continued in Chicago.