Tonight's winter storm is going to cause havoc for holiday travelers. If you have a flight out or have family traveling into D.I.A. tonight or tomorrow, you might want to take advantage of this offer.

A lot of the major airlines are offering to let you change your flight without fees or use discounted waivers. According to The Denver Post, these airlines will offer free or discounted fees for changing flights or canceling your ticket and rebooking it for a later time. See the offers from the various airlines below.

United Airlines is waiving the difference in fares as well as the change fees for United flights that are rescheduled to the same cities and in the same ticketed cabin, according to a notice posted Sunday. This applies to all tickets purchased by Nov. 22 that are flying to, from or connected to DIA.

Southwest, which doesn’t charge change fees, is allowing travelers who have flights that depart, connect through or arrive at DIA to rebook their flights on Monday and Tuesday to other flights to the same destinations within 14 days of their reservations without paying additional fees. The new flights have to be booked in the original travel classes or on standby.

Delta is allowing travelers who have tickets on Tuesday to, from or through DIA to rebook their flights for travel to the same cities by Friday, and it will waive all fees. Travelers also have the option of canceling their tickets without fees and using the credit for another flight within one year.

Frontier is allowing travelers flying Tuesday to, through or from DIA or Colorado Springs to change their flights without paying additional fees. The new travel must occur by Dec. 18, and passengers are able to change the cities of travel.

JetBlue is waiving any change or cancellation fees and fare differences for flights on Monday and Tuesday to, from or through DIA. Travelers can rebook their tickets for travel through Friday.