NEW YORK - Airlines are canceling 2,800 flights Friday to, from or within the U.S., as a blizzard swings up the East Coast, according to flight tracking service FlightAware.

The bulk of Friday's cancelations are in Charlotte and Raleigh, North Carolina. Another 3,200 flights were canceled for Saturday. Those cancelations center around Philadelphia, Washington D.C. and - to a lesser extent - New York.

By Sunday afternoon, however, the airlines hope to be back to a full schedule .

All major airlines have issued waivers for travel over the weekend, allowing passengers to rebook onto earlier or later flights to avoid the storms. For those stuck at an airport, consider calling customer service even as you wait in line to speak to a representative. Also consider sending a tweet to your airline.