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 make …

Learn how to send priority mail with usps easily and efficiently. Get expert tips on packaging, labeling, and tracking your shipments while saving money on shipping costs.

2025年3月10日 · Package in a box or an envelope. Make sure you read the priority mail guidelines on the USPS website so you pack it correctly. Use a basic white or manila envelope for paper or a box for …

Shop our selection of Priority Mail Shipping Supplies on the USPS.com Postal Store

Calculate USPS postage costs for domestic and international mail. Get live rates for First-Class, Priority Mail, Priority Mail Express, and more. Free calculator powered by official USPS data.

Using the Priority Mail Flat Rate Envelope is quick and convenient. Send this envelope at a flat rate regardless of weight or destination. Order online at the Postal Store.

Compare USPS shipping options like Priority Mail Express, Priority Mail, First-Class Mail, and USPS Ground Advantage to find the service that's right for you.

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

USPS postage rates offer low-cost mailing and shipping prices for domestic & international customers. See Forever postage stamp prices and other postage rates.