The speed largely depends on where its going from and too. If its going coast to coast like LA to NY first class and priority are the same since they both end up on a plane instead of going on the ground. Now if its going from like Maine to a small town in Kansas priority does have a speed advantage the further it gets away from large cities.
They do seem to end up taking the same path, but the priority does generally seem to get processed faster instead of sitting somewhere over night it will usually leave by the end of that day.
They do seem to end up taking the same path, but the priority does generally seem to get processed faster instead of sitting somewhere over night it will usually leave by the end of that day.


















