The airline blamed disruptive weather and air traffic control issues for widespread cancellations over the weekend, but other airlines were largely unaffected.The airline blamed disruptive weather and air traffic control issues for widespread cancellations over the weekend, but other airlines were largely unaffected.The airline blamed disruptive weather and air traffic control issues for widespread cancellations over the weekend, but other airlines were largely unaffected.The airline blamed disruptive weather and air traffic control issues for widespread cancellations over the weekend, but other airlines were largely unaffected.