Priority Mail® service includes tracking and delivery in 1-3 business days1. Check delivery time estimates on the Priority Mail Delivery Map. Priority Mail Flat Rate® products let you ship packages up to 70 lbs to any state at the same price. Ship from Post Office™ locations or online from your home or business.

6–10 Business Days 6–10 Business Days USPS provides reliable and affordable international delivery to about 180 countries through Priority Mail International. Most Priority Mail International shipments include tracking and insurance: up to $100 for nonnegotiable documents and up to $200 for merchandise.

USPS Priority Mail is the standard domestic air service for USPS, and packages are delivered within 1-3 business days with tracking for domestic deliveries. USPS Priority Mail Express is the fastest domestic shipping service available from USPS and delivers your parcels within 1-2 business days.

Priority Mail envelopes are available at your Post Office or visit www.usps.com/store. You must use the USPS-produced address label for Priority Mail Express. You can print and pay for your Priority Mail Express and Priority Mail postage labels online using Click-N-Ship.

Next-Day to 2-Day Guarantee1 & Flat Rate Pricing Priority Mail Express® service provides next-day to 2–day delivery service by 6 PM with a money–back guarantee1. You get competitive prices and fast delivery every day, all year, with limited exceptions, to most U.S. addresses and PO Boxes™3.

Electronic mail, commonly shortened to “email,” is a communication method that uses electronic devices to deliver messages across computer networks. "Email" refers to both the delivery system and individual messages that are sent and received.

Priority Mail® provides a fast and affordable way to deliver mail to every address in the U.S. In most instances, delivery is made within 1, 2 or 3 days. Priority Mail® provides the customer with an option of sending mail based on weight and dimension or via Flat Rate envelopes or boxes.

Priority Mail does not provide a money-back guarantee if a mail item doesn't get delivered within three business days. If a money-back guarantee is something you want, then sending via Priority Mail Express is the best option as it provides money back if an item doesn't arrive within two days.

Priority Mail is typically faster than First-Class, shipping in an estimated 1-3 business days, rather than 1-5 days. Priority Mail can be used to ship much larger packages (up to 70 lbs for some services). USPS Tracking and a small amount of insurance is typically included with your shipment.

Priority Mail® provides a fast and affordable way to deliver mail to every address in the U.S. In most instances, delivery is made within 1, 2 or 3 days. Priority Mail® provides the customer with an option of sending mail based on weight and dimension or via Flat Rate envelopes or boxes.

Domestic Prices

Can I use my own box for Priority shipping? Yes, so long as you're not shipping via Flat Rate. If you're shipping Priority Mail Commercial from home, you can use any box you want. Just be sure to remove any old postal barcodes or labels.