American Airlines Cancels Hundreds of Flights

American Airlines Group Inc. canceled hundreds of flights over the weekend due to staffing shortfalls that followed bad weather, snarling weekend travel for thousands of passengers.

American canceled close to 400 flights, or 15% of its mainline operation Saturday afternoon, with more than 250 flights canceled on Sunday, according to FlightAware, a flight-tracking site. Southwest Airlines Co. , by comparison, canceled 80 flights Saturday, 2% of its operation, and 20 on Sunday.