Originally Posted by
cmd320
No, I just haven't taken the time to include them. If you are so inclined, head over to the BTS website and you'll easily be able to find the data.
If you look at the calendar year of 3/31/20-3/31/21 you'll find DL mainline flights operated behind schedule more often than AA, F9, HA, UA, and WN flights. Delta had a pretty off year in 2020 and early 2021. Maybe they'll get the clown show back on the road, maybe they won't. Overall, US airline operational performance is pretty piss poor to be honest.
If you include April-July/August of last year any results will be severely skewed.
Also, I'll take DOT reports where airlines get in trouble if they lie, over any thrid party reporting.