As of Oct 12, 2026, Guardians of the Galaxy: Cosmic Rewind had the longest average posted standby wait at Walt Disney World in September 2026: 77.3 minutes across 783 open half-hours, peaking at 90.9 minutes in the 7 PM hour (SupaPark measured data).
Guardians of the Galaxy: Cosmic Rewind posted a wait of 60 minutes or more in 76.8% of its open half-hours, the highest share of the 55 rides SupaPark ranked.
Every month SupaPark publishes the posted standby waits it measured at every Walt Disney World attraction it tracks: the average, how often the wait hit an hour or more, the peak hour, and how SupaPark's own day-ahead forecast compared. Each month has its own page with the full table, sample sizes, and CSV files that reproduce every number.
Stable link to the latest complete month's CSV: /data/posted-waits.csv.
SupaPark does not time queues, so these reports cover posted waits, not actual waits.
Posted wait. Disney's posted standby wait for a ride, as shown in its app, read by SupaPark about every 5 minutes. Readings are averaged per ride per half hour (open readings only); one open half-hour of one ride is one "slot". Posted waits are measured, not estimated. (canonical definition)
Monthly posted-wait figures. For a ride and month: the mean posted wait is the average of its open half-hour slots; "60+ minute share" is the share of those slots whose average posted wait was 60 minutes or more; the peak hour is the hour of day (Eastern) with the highest average posted wait, among hours with at least 10 slots. A ride is ranked only with at least 100 open half-hours in the month. Every figure is a slot-weighted sum over the cells CSV. (canonical definition)