We now have the data for December 2019 and our models are being updated over the course of today.

Here is our public model on flight performance for US airlines and it also shows you the times of day where arrivals are going to be delayed.  Click on the year list to see how the pattern goes from 2016 through 2019.  A consistent pattern gives you high confidence that these delays are systematic and you will, in all likelihood, experience them during the “red” slots.  Of course, if your time is free, then don’t worry about it.  But if your time isn’t free, well then!

Page 2 gives you unequivocal view on schedule performance – it is getting worse.  Select airline to see each one, but overall the picture is pretty bleak. If your arrival is after lunch, expect to be late.

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