American Airlines canceled more than 1,200 flights this weekend, blaming bad weather and staffing shortages for the widespread disruption. The cancellations represented more than 12% of the airline’s scheduled flights for Saturday and Sunday, it said, and came just weeks after Southwest was forced to cancel nearly 2,000 flights. Severe wind late last week hampered operations at Dallas-Fort Worth International Airport, American’s largest hub airport, cutting into runway capacity and forcing a round of cancellations, David Seymour, the airline’s COO, said in a note to staff on Saturday. That disruption, combined with bad weather elsewhere in its network, stranded American flight crews in the wrong places, hindering the airline as it went into a typically busy weekend. “To make sure we are taking care of our customers and providing scheduling certainty for our crews, we have adjusted our operation for the last few days this month by proactively canceling some flights,” Seymour said. “We are taking this measure to minimize any inconvenience as much as possible. Most of the customers impacted by these changes are being rebooked the same day, and we apologize for having to make these changes.”<br/>