For the southeast and mid-Atlantic, the first deadline for the lowest price on season passes can be as early as late March. Although in some cases, passes aren't even available until early April. Best to check around the time your home resort closes if a season pass is of interest.
Note that sales for the Indy Pass 2024-25 started and ended in the last few weeks. Getting on the Wait List is a good way to stay informed if more Indy passes are sold in the fall.
The Indy Pass locations in the southeast include: Ober, Cataloochee, Wintergreen, Massanutten, Bryce, Wisp, Winterplace, and Canaan Valley. In PA, Montage and Blue Knob are the larger hills on Indy. The PA locations also include Tussey, Ski Sawmill, Ski Big Bear, and Shawnee.