UPS/FedEx has sucked for a while now, rarely are they cheaper than USPS
Well yeah, USPS should be cheaper. They tend to get bailout money from the U.S. government due to operating at a loss e.g. reuters.com/…/us-senate-approves-50-billion-posta… , UPS/FedEx on the other hand just raise their rates / change services to keep their shareholders happy.
In theory if the USPS was allowed to increase rates as much as any private company then they would be as expensive, if not more, vs UPS/FedEx.