A cross-country storm, a blast of Arctic air and an outbreak of showers and thunderstorms are threatening to snarl traffic and pile up delays at airports over the Thanksgiving holiday weekend, one of the nation's busiest travel periods.

The Transportation Security Administration expects to screen 18.3 million travelers over the next week, potentially making this the busiest Thanksgiving travel period ever.

Four Colorado towns have been voted as the best "Turkey Trails," or family road trip destinations for the Thanksgiving holiday. The married political consultants sold the coveted address near Audubon Park in 2021. “We’ve banned this customer from future United flights,” the airline confirmed in a statement shared with PEOPLE