Although U.S. airlines have taken a beating from a mass of weather-related cancellations this winter—and word of a new terror threat—the industry overall is healthier than it has been in years, analysts say.
'It's a blip, in a sense," Vaughn Cordle, a partner at Ionosphere Capital, said of the potential financial hit to the airline industry's bottom line.
It's hard to know if a small number of travelers will defer flying due to new intelligence about a potential shoe-bomb threat, given so many other factors to weigh, Cordle said. It would be a different story if an attack was successful. "If there is an event, that would have an impact and it would be sharp and powerful," he said.
(Read more: US business travel spending expected to rise)
The weather and its impact on the travel industry is a slightly different story.
From Dec. 1 through Feb. 18, there were 102,000 weather-related flight cancellations, according the masFlight tracking data.
Regional carrier ExpressJet has had the most cancellations so far this winter, with 11,658, according to FlightAware, another tracking service. American Eagle has been the second hardest hit with 11,235 cancellations from Dec. 1 through Feb. 20, according to the same FlightAware analysis. Other carriers racked up the cancellations: Southwest had 7,323; American had 6,954; United canceled 6,731 Delta had 6,253; Skywest had 4,760; US Air had 3,496; and JetBlue had 3,378.