NEW YORK -- A massive winter storm is disrupting travel plans for fliers trying to get home after Christmas.
Snow, thunderstorms, sleet, tornados and high winds have grounded planes in the nation's midsection and are expected to slow operations on the East Coast.
Delays racked up from Dallas to New York. By 9 a.m. Wednesday, more than 400 flights nationwide had been scrapped with more cancelations likely throughout the day.
FlightStats.com counted 66 canceled arriving and departing flights at Pittsburgh International Airport.
PIT is not under a Federal Aviation Administration airport delay, though some flights from other airports to Pittsburgh may be delayed or canceled, airport spokeswoman JoAnn Jenny said.
"The odds are pretty good there will be a number of flights impacted by the weather," she said, noting roads to the Pittsburgh airport will likely be treacherous for travelers.
Those who want to re-book fights should do so as soon as possible, she said. Airlines won't charge fees to reschedule in inclement weather, Ms. Jenny said.