USPS Priority Mail | Overview

ShippingEasy wants to help you learn about the e-commerce industry. This article describes a service provided by the United States Postal Service (USPS).

The USPS is a separate organization from ShippingEasy. For more information about USPS services, visit your local Post Office or go to USPS.com.

Priority Mail is a quick, affordable service that ships domestically within 1-3 business days and internationally within 6-10 business days. The actual number of days may vary based on origin, destination, and customs. This is not a guaranteed service; delivery may be delayed.

As an expedited domestic service that delivers to mailboxes, mail slots, and PO Boxes, Priority Mail offers lots of perks.

Priority Mail - Service Overview

Best Option When:
You need a package shipped quickly, but do not need it expedited.

Destinations:

Domestic and International

Content Restrictions:

There are restrictions for mailing restricted, prohibited, and hazardous materials, including cigarettes and smokeless tobacco. Learn more about restrictions.

Priority Mail - Domestic Service Overview

Delivery Timeline:

1-3 business days

This is not a guaranteed service; delivery may be delayed.

Confirmation Options:

Delivery confirmation (tracking) is included for free on all domestic shipments.

Additional confirmation options available for an added fee:

Insurance Options:

Insurance (up to $100) included on domestic shipments; Learn about restrictions and exclusions that may apply.

Additional Insurance is available for an added fee. Learn more about additional insurance options.

Rates:

Four rate options:

Priority Mail - International Service Overview

Delivery Timeline:

6-10 business days. 

The actual number of days may vary based on origin, destination, and customs delays.

This is not a guaranteed service; delivery may be delayed.

Confirmation Options:

Delivery confirmation (tracking) is included in some international shipments. Further restrictions apply. Learn more about tracking to the destination.

No additional confirmation options are available on international shipments.

Insurance Options:

Insurance (up to $200) included on international shipments; restrictions and exclusions apply. Learn more about Priority insurance.

Insurance not available for Priority Mail International Flat Rate Envelopes or Small Flat Rate Priced Boxes.

Additional Insurance is available for an added fee. Learn more about additional insurance options.

Insurance limits vary by country. See Individual Country Listings.

Rates:

Two rate options:

Priority Mail - Flat Rate Packages and Envelopes

Best Option When:
You want the speed of Priority Mail and your packages are dense or traveling long distances.

Destinations:

Domestic and International

Service overview:

Rates are determined by package selection.

Rate Tables:

Domestic: View the domestic rate tables:

International: View the international rate table:

Restrictions:

Only boxes marked with Priority Mail Flat Rate may qualify for Priority Mail Flat Rate pricing. The exterior of the box will have the Priority Mail Flat Rate service clearly printed on the envelope or box.

The container flaps must be able to close within the normal folds. Packages that exceed the natural folds of the box/envelope will be assessed the applicable single-piece, retail, Priority Mail price.

Package Weight Limits:

Domestic: Maximum weight for domestic shipments: up to 70 lbs.

International: Maximum weight for international shipments differs by package:

  • Priority Mail International Flat Rate Envelopes and Small Flat Rate Boxes: up to 4 lbs.
  • Medium and Large Priority Mail International Flat Rate Boxes: up to 20 lbs.

Some countries may have lower weight restrictions. View Country-Specific Restrictions.

Package Options:
Type Dimensions Order
Flat Rate Envelope 12 1/2" x 9 1/2" Order for free.
Legal Flat Rate Envelope 15" x 9 1/2" Order for free.
Padded Flat Rate Envelope 12 1/2" x 9 1/2" Order for free.
Small Flat Rate Box 8 5/8" x 5 3/8" x 1 5/8" (interior) Order for free.
Medium Flat Rate Box Top loading:
11" x 8 1/2" x 5 1/2" (interior)
Order for free.
Side loading:
13 5/8" x 11 7/8" x 3 3/8" (interior)
Order for free.
Large Flat Rate Box 12" x 12" x 5 1/2" (interior) Order for free.

Priority Mail - Weight Based Rates

Best Option When:
You want the speed of Priority Mail and your packages are lightweight or traveling short distances.

Destinations:

Domestic and International

Service overview:

Domestic: Rates are determined by weight and dimensions of package and distance it has to travel. Domestic distance determined by zone. When dimensions exceed 1 cubic foot, a dimensional (DIM) weight may be billed.

International: Rates are determined by weight and distance it has to travel. International distance determined by Country Group.

Rate Tables:

Domestic: View the domestic rate tables:

International: View the international rate table:

Package Weight Limits:

The maximum combined length and girth is 108". Meaning the combined measurement of the longest side and the distance around the thickest part can’t be more than 108".

Domestic: Maximum weight for domestic shipments: up to 70 lbs.

International: Maximum weight for international shipments: up to 70 lbs.  Note: some countries may have lower weight restrictions.  View Country-Specific Restrictions.

Package Options:

Use your own custom packaging or order free shipping supplies from USPS.

Priority Mail - Regional Rates

Best Option When:
You want the speed of Priority Mail and your packages are dense and traveling short distances.

Destinations:

Domestic

Service overview:

Rates are determined by package selection, as well as the distance it has to travel (measured by zone).

Only boxes marked with Priority Mail Regional Rate may qualify for Priority Mail Regional Rate pricing. The exterior of the box will have the Priority Mail Regional Rate box type clearly printed on the box.

The container flaps must be able to close within the normal folds. Packages that exceed the natural folds of the box/envelope will be assessed the applicable single-piece, retail, Priority Mail price.

Rate Tables:

Commercial Pricing

Package Weight Limits:

Maximum weight for shipments differs by package:

  • Box A: up to 15 lbs
  • Box B: up to 20 lbs
Package Options:
Type Option Dimension Max Weight Order for free
Regional Rate Box A A1 Top loading:
10" x 7" x 4 3/4" (interior)
15 lbs Order for free.
A2 Side loading:
12 13/16" x 10 15/16" x 2 3/8" (interior)
15 lbs Order for free.
Regional Rate Box B B1 Top loading:
12" x 10 1/4" x 5" (interior)
20 lbs Order for free.
B2 Side loading:
15 7/8" x 14 3/8" x 2 7/8" (interior)
20 lbs Order for free.

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