More than 2,300 flights are canceled and thousands more delayed as snow and icy weather moving through the US continue to interrupt air travel

• A deadly winter storm in the US has also continued to delay flights.
• Some 2,300 flights were canceled and over 4,000 delayed by Monday morning, according to FlightAware.

Travelers looking to return home after the Christmas weekend can expect more frustrating airport challenges ahead in the US.

More than 2,300 flights were canceled and more than 4,000 were delayed as of Monday morning, according to FlightAware, reflecting the scope of disruptions caused by a deadly winter storm that's led to heavy snows and power outages in the northeast.

Southwest Airlines reported some of the most interruptions, according to FlightAware data, which noted that roughly 29 percent of Southwest flights are delayed. On Monday morning, the airline Tweeted for its customers to "explore self-service options" for booking, canceling or changing flights and said that it was facing "high call and social inquiry volumes."

Roughly 29 percent of JetBlue flights and about 11 percent of Delta flights were delayed as of Monday morning, according to FlightAware. More than 90 percent of flights in the Buffalo Niagara Airport in New York are canceled as of Monday. Airports in Denver, Chicago, New York City and Seattle are also beset by delays, according to the site.

Several dozen flights were canceled on Monday at O'Hare Airport in Chicago, where travelers described facing long lines and waits that led to some even missing their flights, according to ABC7.

The National Weather Service said on Monday that a "deep freeze" would continue to blanket the eastern US on Monday, and warned of "lake-effect snows," but said that the weather would improve over the next week.