USPS is increasing rates in parcel delivery services, effective this week. Here's what to know about the cost to ship your packages.

In essence, there is only one main difference between flat rate and Priority Mail: the price. All of your shipments are shipped in Flat Rate Boxes. Shipping with Flat Rate Boxes is a breeze. As long ...

Priority Mail rates are up 3.2%. With rates stating at $10.10 for Flat Rate Envelopes, $10.65, for USPS Flat Rate Mailing Box, and $9.35 when using your own box by weight/zone Priority Mail ...

By the time you buy the right envelope and add insurance, you may be better off going with a USPS Priority Mail Flat Rate Envelope, which costs $10.45. The postal service will provide a free ...

the same price as the new Priority Mail Flat-Rate Envelope. Located 1,000 light-years from Earth in the constellation Perseus ...

revealed that its upcoming Priority Mail and Priority Mail Express flat rate stamps will feature two deep space vistas captured by the Webb observatory. Scheduled for release on Jan. 21 ...