Looking over past few months, not seeing many significant recent changes from DL
Other than AA, most of the other carriers don't seem to be aggressively overloading flights any more (only to cut them back later).
AA did a couple of big updates/cutbacks back during the last couple weekends in February for mostly June - October flights with many routes losing a frequency or two. As an example, MSP-PHL had been loaded to bump up from 1x daily to 3x daily starting in June, but got chopped back to 1x daily through September. You can still see the 3x daily schedule on flights for October 5th and beyond (which will likely also get chopped at some point).
That said UA just loaded a bunch of EWR summer schedule cuts last weekend in response to FAA request to reduce NYC schedules for summer --
https://www.aeroroutes.com/eng/230412-uaewr
Wouldn't be surprised is DL does something similar this coming weekend.
