What is the flat rate priority mail postage

The flat rate priority mail postage rates in the United States are set by the United States Postal Service (USPS) and are designed to provide a convenient and affordable way to send packages of a certain size and weight. Here are the current flat rate priority mail postage rates:

Flat Rate Envelopes:

• Small Flat Rate Envelope (up to 13.5" x 12" x 0.5"): $7.50
• Medium Flat Rate Envelope (up to 15" x 12" x 0.5"): $13.75

Flat Rate Boxes:

• Small Flat Rate Box (up to 13.5" x 12" x 5.5"): $14.35
• Medium Flat Rate Box (up to 14.5" x 12.5" x 5.5"): $19.95
• Large Flat Rate Box (up to 16" x 12.5" x 6.5"): $24.95
• Regional Rate Box (up to 13.5" x 12.5" x 6.5"): $14.35 (for destinations within the contiguous United States)

Notes:

• These rates apply to packages that weigh up to 70 pounds.
• The flat rate boxes are designed to be used for packages that are a certain size and weight, and are not intended for use with packages that are larger or heavier.
• The flat rate priority mail service is a 2-3 day service, and is not guaranteed.
• The USPS offers free packaging materials, including boxes, envelopes, and tape, at many post offices.
• You can also purchase flat rate priority mail postage online and print your own shipping labels.

It's worth noting that while the flat rate priority mail service is convenient and affordable, it may not always be the cheapest option for shipping packages. You should compare rates and services to determine which option is best for your specific needs.