My experience below should shed some light on Priority Self-Assist Debarkation (PSAD).
And answer the perennial question "What's the earliest I can I make a flight after a cruise?".
Arriving at Miami Cruise Port Sunday Feb 11, 2024 and trying to catch a 9:30am flight out of Fort Lauderdale (FLL).
Priority Self-Assist Debarkation (PSAD)
Carnival Horizon - Miami to FLL
PSAD for Platinum
Diamond went first, Gold maybe 30 mins later
Beforehand: SWA check-in 24 hours prior
Actual times (YMMV):
5:00am rise and clear cabin
5:00am ship docks
5:30am all bags to forward dining
5:35am bags first in PSAD line
5:50am others showing up
6:10am continental breakfast
6:30am official PSAD time
7:40am Customs clears ship
7:40am actual Diamond PSAD
7:50am actual Platinum PSAD
8:00am actual customs
8:10am actual in taxi
8:43am actual arrive FLL
8:45am actual last checked bags
NOTE: Bag check 45 mins prior to flight
8:50am actual TSA started
9:00am actual TSA done
9:00am actual boarding started
9:07am actual at gate and on the ramp
9:30am actual flight
11:45am actual arrival MCI
WARNING: This represents the absolute earliest flight time and I strongly recommend planning an additional hour at least. (For example, customs can take as long as they want.)
Hope this helps!