Looks like many USPS items are going to be taking longer to get here - Ground Advantage apparently now really means by
ground.
https://postalpro.usps.com/node/15616
"Effective October 1, 2026, the Postal Service is adjusting service expectations for Priority Mail and USPS
Ground Advantage packages for noncontiguous states and territories of the United States. In addition, the
Postal Service is aligning the transportation for USPS Ground Advantage packages under one pound with
the transportation used for over one-pound packages such that noncontiguous USPS Ground Advantage
packages will now primarily utilize surface transportation.
...
Priority Mail packages to or from the following locations will receive a 2 to 4-day service expectation:
Alaska, Hawaii, American Samoa, Puerto Rico and United States Virgin Islands. The service expectation
was previously capped at 3 days but has been adjusted due to travel time and time zone considerations.
...
USPS Ground Advantage packages between the contiguous United States and the following locations will
have a 10-day or more service expectation: Alaska, Hawaii, American Samoa, Puerto Rico, United States
Virgin Islands, Guam, Northern Mariana Islands and the Freely Associated States. Days will vary due to
the range of distances between some locations. Most transit days have been adjusted, and some service
expectations may be significantly longer than 10 days.
USPS Ground Advantage products under one pound to and from noncontiguous locations were
previously transported via both air and surface. Regardless of weight, noncontiguous USPS Ground
Advantage packages will now primarily utilize surface transportation" (a bit more at link)