I am very sure DL is playing tricks with the delay and cancellation numbers. Real world data suggest otherwise. I took 4 DL flights, 3 were very delayed and 1 was cancelled, rebooked and very delayed. I had coworkers traveling on United, 11 flights and 10 were completely on-time by every metric and 1 was slightly delayed. Family member cheaped out and flew on Spirit to Mexico and both legs were on-time but on return via Delta, it was delayed.

I know every airline is having issues but I think UA is doing better than others. As many said, DL is too arrogant from past success and just dont know how to handle massive amount of cancellations and delays. Man, I have gotten crap from everyone for paying higher fare with DL but getting none of that supposely stella "on-time" performance.

Plus, I saw some really stressed out agents that was going into mental breakdown, and were barking and yelling at passengers for no reason. The pandemic really turned the industry upside down and DL is at or near the bottom now.