Flights? Grounded. ✈️ American Airlines canceled more than 1,000 flights over Halloween weekend caused by two days of severe winds in the Dallas-Fort Worth area. "With additional weather throughout the system, our staffing begins to run tight as crew members end up out of the regular flight sequences," according to a letter to staff shared with USA TODAY. American said that most of the customers impacted by the cancellations were rebooked the same day. The airline also noted that it would have more staff available in the coming days, with nearly 1,800 flight attendants returning from leave starting Nov. 1 and more than 600 new hires by the end of December. 📸: @usatoday