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Here’s a model depicting delays at the top ten US airports. The data is through November 2024.
The model uses color to highlight relative delays. It is clear that some airports perennially run late. It is also interesting to see, once again, how the pandemic eased delays. The more interesting issue is that airlines cannot match pre-pandemic performance.
Selecting an airline from the list immediately highlights fortress hubs. Moreover, delays are growing. These delays cost airlines because while revenues are fixed (once a ticket is paid for, that’s about it revenue-wise), running late means the cost clock keeps ticking. As an industry, that clock runs at ~$120/minute. With thousands of daily flights and an average of 17% running 15 minutes or more late, the math is eyepopping.
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