Priority Mail, including Priority Mail Flat Rate shipping products, has fast shipping times (2-3 days) with flexible prices. Get free flat rate boxes and print postage labels online.

This guide breaks down the different types you can choose from, including the legal flat rate envelope, the padded flat rate envelope, and the small flat rate envelope, and shows where flat rate boxes …

Save money with Priority Mail Flat Rate. Pay one flat rate to ship up to 70 lbs. with the U.S. Postal Service.

The Priority Mail Flat Rate® Envelope - EP14F is quick, easy, and convenient, simplifying your Priority Mail® shipping process for documents. Just like the Flat Rate Boxes, this paperboard envelope …

Oct 13, 2024 · Choosing between USPS Priority Mail and USPS flat rate shipping can significantly impact your shipping costs. This comprehensive guide breaks down flat rate box prices, Priority Mail …

Dec 2, 2025 · For urgent shipments, USPS offers Priority Mail Express Flat Rate envelopes. These provide overnight to 2-day delivery, 70 lb weight limits, and include insurance and tracking.

Wondering how much is a priority mail flat rate envelope? Get the full breakdown on costs, rules, and expert tips—plus a box-free return alternative that saves you time.

4 days ago · Priority Mail prices start at $10.45 per package and $11.90 for flat-rate Priority Mail envelope - they are expected to increase 6.6%

Priority Mail ® service offers a variety of Flat-Rate Boxes and Envelopes that ship for the same price to any domestic address, regardless of how much they weigh or how far they’re going.

Priority Mail Envelopes Priority Mail Flat Rate® Envelope Single or Pack of 10 12-1/2" (L) x 9-1/2" (H)