Originally Posted by
Flytolive
UAX block hours are maxed out as they cannot exceed L-UAL mainline hours. They could exchange 50 seaters for CRJ-700s or E-170s with 70 seats max, but they haven't done that for a while and are parking 5 70 seaters in 2012 with no planned replacements. L-CAL is maxed out on 50 seaters.
So the ratio of United's block hours domestic+international is now 1 to 1 with UAX.
Delta's ratio of block hours DOMESTIC ONLY is now 1.19 to 1 and is slated to go up to 1.56 with this TA.
With this TA, if you include international hours, then the MINIMUM ratio between mainline and DCI is more than 2 to 1.
So, to recap, United's minimum ratio is 1 to 1, Delta's is 2 to 1.