1,200 US flights canceled Monday as winter storm pummels East Coast - CNN

More than 400 flights were canceled there Monday and 85 delays were reported according to flight tracking site FlightAware.

The airline preemptively canceled 1,100 flights Sunday across its mainline and regional operations after canceling 90 Saturday.

"This weekend's winter storm is expected to have a significant impact on our operation, especially at Charlotte International Airport," American said in a statement.