When we published a table that showed Delta’s A220 was struggling over 2019 there was quite a reaction. The DoT just released the January data and there has been a sharp improvement with Delta’s A220s. The following table shows the improvement.
Like all airlines reported by the DoT, as the day reaches late afternoon, schedules start to fall apart. This is especially the case with aircraft that do several small hops. For example, the Delta A321 and 737-900 fleet are “all in the green”.