An unusual blast of snow and ice in the South added to the nation's travel woes Wednesday, this time with Atlanta topping the misery map.
Atlanta's Hartsfield-Jackson International (KATL) had canceled 301 flights by 9 a.m. EST, a total of 25 percent of its flights. All in-bound flights had been held at their origin airports until 10 a.m., according to flightaware.com.
A winter storm that would probably be no big deal in the North all but paralyzed the Deep South on Tuesday, bringing snow, ice and teeth-chattering cold, with temperatures in the teens in some places.AP
"KATL is the most weather impacted airport today, but it is still a vast improvement over their cancellations yesterday," Andrew Taylor, an aviation support specialist at flightaware, said in an email to CNBC.
Dozens of flights were also canceled at Chicago O'Hare, Houston Bush International, Cleveland-Hopkins, New York's LaGuardia and in Charlotte and Raleigh-Durham. N.C., Norfolk, Va.
(Read more: Airport upgrades: Changing rooms, outdoor plazas)
As of 10 a.m., nearly 1,800 flights had been canceled and more than 4,300 had been delayed, according to flightaware.com.
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Flights are shown cancelled due to winter weather at Louis Armstrong International Airport on January 28, 2014 in New Orleans, Louisiana. Due to icy condition most businesses and schools have been closed in the metro area.Getty Images
At 9:45 a.m. the official Twitter account for the New Orleans airport tweeted its first flight was en route, but warned that public transportation was not yet running due to hazardous roads.
Icy and snowy roads were a problem across the region, stranding schoolchildren overnight on school buses in Birmingham, Ala., and Marietta, Ga.
Megabus said it was canceling all of its Wednesday service to and from Atlanta along with all southbound routes from Washington, D.C.
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Amtrak said it expected to resume a full schedule of trains to and from Chicago after reducing service Tuesday due to the weather.
