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.

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

Priority Mail Express items, including Priority Mail Express Flat Rate shipping products, are delivered in 1-3 days to most U.S. locations. See USPS economical prices, free shipping …

Learn how to ship a package with USPS, from choosing the right mail service, packing your box, writing the address, calculating postage, and scheduling a pickup.

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

We’ve simplified product names and Express Mail ® is now Priority Mail Express. It’s still our fastest domestic product available*, with overnight delivery to most U.S. locations** and up to …

Send mail and packages with USPS online shipping options. Choose your mail service by delivery speed, cost, and additional services like tracking and insurance.

After a postal employee formally accepts your USPS Marketing Mail, you mail your trays or sacks of USPS Marketing Mail via Priority Mail to the postal facility nearest the final destination of …