Skywest must have a very lucrative CPA with United. Expressjet is much bigger than Skywest, yet Skywest brings in much more revenue. The rates paid to Skywest and Expressjet for Delta flying are the same, as both carriers negotiated the 2nd lowest cost rate with Delta.

The E145 CPA is probably hampering revenue as well, which ironically, Skywest Inc did to themselves

Profitablity of the contracts seem to lean heavily on performance incentives, hence the reason management is going crazy with all these nexlev mind meld meetings after horrific performance this past quarter.