Does priority mail go by truck or plane

The mode of transportation for Priority Mail depends on the distance and the service level chosen. Here's a general breakdown:

Domestic Priority Mail (within the United States):

International Priority Mail:

Priority Mail Express:

Priority Mail Regional Rate Boxes:

Keep in mind that the USPS (United States Postal Service) uses a network of transportation partners, including airlines, trucking companies, and railroads, to move mail and packages across the country and around the world. The specific mode of transportation used may vary depending on the route, package size, and other factors.

It's always a good idea to check with the USPS or the tracking information for your specific package to determine the exact mode of transportation used.