Live tracker maps show current conditions across the U.S., as a powerful winter storm is expected to sweep across the country late this week.

Around 12,000 flights across the U.S. set to take off over the weekend were cancelled as a monster storm started to wreak havoc Saturday across much of the country and threatened to knock out power fo...

Total flight cancellations within, into or out of the United States for Saturday numbered 2,179, as of Friday, flight-tracking website FlightAware reported.