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Priority Mail Express items, including Priority Mail Express Flat Rate shipping products, are delivered the next day to most U.S. locations. See USPS economical prices, free shipping boxes, and how to print postage labels online.
- Legal Flat Rate Envelope
The Priority Mail Express Legal Flat Rate® Envelope is...
- 1.0 Prices and Fees
Priority Mail Express is an expedited service for shipping...
- Mail & Shipping Services
Our fastest domestic shipping service, Priority Mail Express...
- Legal Flat Rate Envelope
Send care packages to loved ones serving overseas with our selection of boxes, envelopes, forms, and more. Shop Now.
Our fastest domestic shipping service, Priority Mail Express ® delivers 7 days a week, 365 days a year (with limited exceptions). Next-day delivery is available to most U.S. addresses and PO Box ™ 1 addresses with a money-back guarantee 2 .
Send care packages to loved ones serving overseas with our selection of boxes, envelopes, forms, and more. Shop Now. Priority Mail Shipping Supplies Boxes.
Priority Mail Express International shipments are delivered in 3-5 business days to more than 180 countries. Shipping rates start at $59.50. Shipments include insurance, tracking, free package pickup, and a money-back guarantee to many countries.
Priority Mail Express packaging supplies (envelopes, boxes, tubes) are available at no cost from your local Post Office. If getting your mail there overnight is your highest priority, then Priority Mail Express is the best choice.
Priority Mail Express® is the fastest mail service from USPS, with guaranteed next-day to 2-day delivery and flat rate pricing. Learn more about its features and benefits.
