Airport Congestion around the Holidays

I’m looking for some general insight into airports around the holidays. My understanding is that a ton of people are traveling in the last few weeks of December, but are there any particularly good or bad days?

For example, I’m not sure if traveling on Christmas day (dec 25th) would be a lot easier than say the 24th or other days in that vicinity. Also curious what the trends tend to be regarding airport congestion and new years day.


25 December at my airport (pacific, northwest, not U.S.) is always dead. Days around it busy.