Aixa Diaz

She says this year has been tricky to predict given the uncertainty around the government shutdown.

Because anything could happen and things change daily.

On Friday, Secretary of Transportation Sean Duffy warned that by Thanksgiving, as many as 20% of flights could be impacted if the shutdown continues.

Many more than have already been affected since the Federal Aviation Administration announced reduced flights to and from 40 major airports earlier this week.

Liz Baker, NPR News.