Originally Posted by
moondog
It's true that he only discusses RASM (in the non-paywalled article, at least), which is only half of the picture, but costs can't possibly be significantly lower than ATL, DTW, or MSP.... well, I suppose anything is possible (e.g. maybe one or more of them has exorbitant landing fees or lease rates).
The analysis also includes just domestic revenue - not sure if that’s passenger-only or includes cargo as well. Somewhere DL’s internal analysis would also likely include incremental Amex revenue drawn from SEA’s hub status (only reason I got the Reserve). Bottom line, it’s an interesting best-guess analysis based on
publicly-available data.