Originally Posted by
WineCountryUA
For recent previous months, it has been the last weekend of the second prior month. Had been some hope for last weekend for the July update but that did not happen. Stong possibility it will be this coming weekend, the 30th May.
This is incorrect for domestic schedule updates. DL and UA had been doing the bulk of their schedule loads over the second weekend of the prior month while AA had been doing them on the first weekend of the prior month. The June schedule cuts were done over weekend of May 2nd by AA, and over weekend of May 9th by UA/DL. It was the same pattern for the May schedule cuts. You can find these in the Sunday "OAG Changes" posts on airliners.net. DL appears to have decided to change things up and loaded their July domestic schedule updates over the last weekend. So AA/UA may decide to move earlier for the July changes as well.