The statistics in that article are of the "damned lies" variety: none of the values are normalized (they compared simple number of cancellations and delays with

The statistics in that article are of the "damned lies" variety: none of the values are normalized (they compared simple number of cancellations and delays without taking that as a per flight value, or perhaps better, per passenger) and they treat all delays (and cancellations) as equal; I'll take an airline often delayed by 5 minutes over an airline sometimes delayed by 3 hours. Perhaps it's true nonetheless, but the numbers there won't tell you. (And IME, it's perhaps true that SWA is often delayed … but by tolerable amounts. Compared to delays I've endured with Delta, where, e.g., a flight was delayed longer than the time it would take the plane to drive at highway speeds, from where it was coming from. Or … also Delta … where I was cancelled on twice in the same flight. They wanted to go 0-3 but I gave up and bought a ticket on … SWA.)