The snowstorm meant big business at the new Westin Hotel at Denver International Airport.
All of the rooms were full Tuesday, less than one month since it opened.
The hotel started the day with just 40 percent of its rooms filled. Reservations came in quickly once flight cancelations and delays began.
More than 500 flights were axed by the end of the day.
The most expensive Westin rooms go for $400.
Some nearby hotels also booked up because of the weather.