Originally Posted by rickair7777
But if you you are commuting on UAL, be aware UAL non-revers get charged a mileage fee. This can be a double-whammy, cuz the mainline guys will often want to sit in the jumpseat to avoid the fee.
Also, I believe that in the united system, mainline guys have non-rev and maybe jumpseat priority over the regional guys, even on a regional aircraft! So a UAL pilot can show up at the last second and kick you out of the jumpseat of your OWN aircraft

First part is true. United charges a small service charge. It works out to about 1 penny per mile. If you are going SFO-DEN, I think it is $11 for a 1000 mile flight. Not bad.
For the second part, yes United guys get priority over regional guys on United aircraft, but NOT on Skywest aircraft. On skywest, skywest employees are BP-8 and united employees are BP-9.