A major winter storm is threatening holiday travel for passengers going back home after Christmas Day, creating hazardous travel conditions Wednesday into Friday, according to the National Weather Service.

According to the National Weather Service, a storm will bring heavy snow and gusty wind to much of the central and northern plains and to the upper midwest on Wednesday into Thursday. Over the southern plains, the NWS says there is a chance of showers and thunderstorms. The NWS also predicts rain over the central plains that will move northeastward into the Great Lakes and Ohio Valley by Thursday.

Owing to the potential travel disruptions, major airlines are offering customers travel waivers. Below are the deals being offered by airlines: American Airlines:

American Airlines passengers traveling to through or from the following destinations can take advantage of the travel waiver: Bismarck, North Dakota (BIS)

Fargo, North Dakota (FAR)

La Crosse, Wisconsin (LSE)

Minneapolis / St. Paul, Minnesota (MSP)

Rapid City, South Dakota (RAP)

Rochester, Minnesota (RST)

Sioux Falls, South Dakota (FSD) The conditions laid out by American Airlines say customers are eligible if they bought their ticket by Dec. 25, have travel dates of Dec. 26-27 and can travel between Dec. 25-30. Customers also can't change their origin or destination city and must be booked in the same cabin or pay the difference.

United Airlines:

United Airlines passengers traveling to through or from the following destinations can take advantage of the travel waiver: Bismarck, ND (BIS)

Devils Lake, ND (DVL)

Dickinson, ND (DIK)

Duluth, MN (DLH)

Fargo, ND (FAR)

Hancock, MI (CMX)

Jamestown, ND (JMS)

Minot, ND (MOT)

Rapid City, SD (RAP)

Sioux Falls, SD (FSD)

Williston, ND (ISN) The passenger's original travel dates must be between Dec. 26-27. Similar to American, any change fee or difference in fare will be waived for new flights departing on or before Dec. 30. Travel must be booked in the same ticketed cabin and be between the two cities on the original ticket.