A scheduling glitch has left American Airlines without enough pilots and staff during the busy December travel period, the airline's pilot union said on Wednesday. As a result, thousands of flights currently do not have pilots assigned to fly them during the upcoming critical holiday period.". American Airlines said it is working diligently to address the issue and expects to "avoid cancellations this holiday season." But the pilots' union is urging crews not to take these assignments because they might violate the union contract. American has about 200,000 flights scheduled for December and operates on average 6,700 daily.

Source: CNN November 29, 2017 19:41 UTC