According to FlightAware, there are 13,031 flights delayed and 1,650 total cancellations as of Thursday morning.
According to the app FlightAware, there were 10,882 flights delayed and 1,783 flights canceled in the U.S. on Monday.
A winter storm in Texas is causing widespread flight cancellations, particularly in Dallas, a major airline hub.
From the Dallas-Fort Worth Airport to William P. Hobby Airport, Envoy Air had three canceled flights, SkyWest had two canceled flights and PSA Airlines had one canceled flight, according to FlightAware. Six Southwest flights from Dallas Love Field to Hobby were also canceled, according to FlightAware.
According to FlightAware, DFW International and Dallas Love Field airports had over 1,800 cancellations combined. Friday could be worse.
Hundreds of flights into and out of Dallas-Fort Worth airport were cancelled as Texas braces for a wintry storm.
In addition to flight disruptions, Thursday's severe weather led to hundreds of power outages and some traffic delays.
Areas in Central Texas could see a mix of freezing rain, sleet and snow between Thursday and Friday, according to the National Weather Service. The NWS predicts cold, freezing rain Thursday morning to midnight on Friday and then some sleet and snow west of Austin between midnight and sunrise on Friday.