United Airlines flight 4166 — from Pennsylvania to Chicago — made an emergency descent after rapidly losing cabin pressure 40,000 feet above Ohio.

United Airlines flight 1524 was forced into an emergency descent after experiencing a "rapid decompression" in the cabin, according to reports from passengers

The landing gear of a United 737 hit a coyote as the plane took off Sunday morning for Phoenix. The plane turned around and safely landed back at O’Hare. The passengers and crew switched planes and left again later in the day.

The plane left the Lehigh Valley International Airport in Allentown, Pennsylvania, around 5:24 a.m. and was expected to arrive at Chicago's O'Hare International Airport at 8:44 a.m.

Flight cancellations are mounting as a historic winter storm sweeps across the Gulf Coast. Already, the storm has brought air traffic to a virtual standstill at several airports across parts of Texas and Louisiana.

With winter weather striking the Southeastern United States on Tuesday and blanketing several states with snow and ice, travel viaplane, train or car has become challenging.

Austin woke up to sleet and snow accumulations ranging from half an inch to 2 inches on Tuesday morning, according to the National Weather Service.

Phoenix Sky Harbor reported 41 canceled flights to destinations like Houston and San Antonio, where a winter storm is expected to bring treacherous conditions.

United Airlines said profit and revenue grew in the fourth quarter boosted by strong demand for all its products, as well as an influx of passengers and flights. The airline on Tuesday reported net income of $985 million, or $2.95 a share, compared with $600 million, or $1.81 a share, in the same period a year ago.

Thousands of flights were canceled Tuesday and airports in Houston suspended operations as a winter storm hit Texas, Louisiana and other states along the Gulf Coast where snow is rarely seen. “They’re looking at snowfall amounts on the order of 3 to 6 inches,

This winter's harshest arctic blast so far is coursing through Texas as the state is the worst in the world for flight cancellations.