Originally Posted by C17PSGR

That's not correct. Pilots have an integrated seniority list but cockpit crews are not integrated. Pilots can bid larger aircraft but not aircraft in the same category. I suppose a PHX based LUS A319 pilot could bid on a DFW based LAA A321, go through training and be qualified on that aircraft and fly with a LAA A321 pilot. Otherwise, it is my understanding that LAA and LUS pilots are not sharing cockpits unless they have qualified in that aircraft.