It was the second time in a week passengers had been hit by mass outages due to winter weather.
More than 3.000 flights from Texas to New Jersey were cancelled by Thursday.
Dallas and Fort Worth airports, which have been the two busiest, have been affected.
For the second time in one week, airlines canceled hundreds of flights before a powerful winter storm is set to hit areas from Texas to New England.
More than 1.400 U.S. flights were canceled on Wednesday, and nearly 1.800 were scheduled for Thursday, FlightAware said.
The National Weather Service said heavy freezing rain is expected to build up, as well as heavy snowfall, from Texas across the Ohio River Valley to the Midwest.
Airline carriers, such as Southwest, American, Delta and United, vowed to eliminate price differences for travelers seeking to rebook flights during the storm.
Over the past week, airlines have canceled more than 4.000 flights because of another storm in the Northeast.
Although we do not expect widespread power outages as the temperature will not be nearly as cold as it was a year ago,we do expect ice to accumulate on roadways. Love Field is closed for flights on Thursday,and this is indicative on the sort of hazardous weather we expect to see.
— Clay Lewis Jenkins (@JudgeClayJ) February 2, 2022
There have been many accidents reported on I-20. Please stay home and avoid driving but if you can't, please exercise extreme caution & take it slow out there. Roads are icy and conditions likely will not improve. Check out local road conditions at https://t.co/RBtRXg4YPi #txwx
— NWS San Angelo (@NWSSanAngelo) February 3, 2022
The Illinois State Police are handling multiple jackknifed semis which have blocked I-57 Southbound traffic at MP 219.5. Traffic s/b on I-57 is now being diverted at exit 220 (Pesotum) onto US-45 South.
Please avoid this area.— IllinoisStatePolice (@ILStatePolice) February 3, 2022
A major winter storm is underway across the Central U.S. with snow, sleet, and freezing rain. Areas in the Northeast will start to see wintry weather tonight into tomorrow. Please see our latest Key Messages for details. pic.twitter.com/8ypPAVcEtV
— NWS Weather Prediction Center (@NWSWPC) February 2, 2022
Damaging ice accumulations Thu-Thu ngt. Expect: tree damage, treacherous driving conditions, possible power outages. #lmkwx #kywx #inwx pic.twitter.com/eDFZIYBATp
— NWS Louisville (@NWSLouisville) February 2, 2022
Here is the latest thinking as far as snow and ice accumulations across Arkansas through Thursday. The most significant snow will be in the north/west, with significant ice likely in northeast, central, and southern sections of the state.#arwx pic.twitter.com/4k8ar9HQS5
— NWS Little Rock (@NWSLittleRock) February 3, 2022
