Unless it's changed, USCG does not have a guaranteed flight ascension program. So you join, attend OCS, and maybe get a flight slot. If you don't get a flight slot, then you do 4 (5?) years as a regular officer.
Someone currently in the USCG could tell you what the odds are right now.
Last edited by rickair7777; 08-12-2019 at 07:43 PM.