I sent my daughter two packages USPS 2-day priority mail from MD to CA. I knew it would take longer than 2 days but was pretty annoyed when I followed the tracking. It left my post office an hour after I dropped it off, but was not tracked again until 2.5 days later (Sat) when it was logged into another local USPS distribution facility less than 30 miles away. The next update was the following Tuesday, almost a week later, when it showed up at another USPS facility in an obscure facility 30 miles from my home in the opposite direction. They literally had to drive right by the post office I mailed from to get to that facility. So it basically traveled around MD for a week. They finally arrived in CA Thursday and delivered to her apartment on Saturday…10 days after I spent a fortune to send priority mail. Annoyed as I was, it was a huge relief just to know it actually arrived. One box was all of the ornaments we have given her since she was born, so irreplaceable.
I normally prefer UPS but it is cheaper and (normally) faster for me to send via Priority Mail if sending things to the West Coast. Were both of your packages going to the same address? As I waited for my daughter’s packages to arrive, I wondered if UPS ground would actually have been any faster.