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What is Priority Mail?

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Priority Mail is a quick, affordable service.

Time is most certainly of the essence for e-commerce business owners. For the most part, they’re looking for that happy medium when it comes to shipping. Overnight delivery can be costly, while the cheapest option may take eight or ten days to deliver. Enter Priority Mail - a meld of affordable and timely. Yes, you really can have it all with average domestic delivery in 1-3 days, and international delivery within 6-10 days.

As the only two-day domestic service that delivers to mailboxes, mail slots and PO Boxes, Priority Mail offers a slew of other perks.

Best Option When: You need a package shipped quickly, but do not need it expedited.
Destinations: Domestic International
Delivery Timeline: Expect domestic delivery in 1-3 business days.  
The expected delivery date will be printed on the label and is based on origin, destination, and drop-off time.  
This is not a guaranteed service; delivery may be delayed.
For many major international  markets, you can expect delivery within 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.
Service Overview: Delivery confirmation (tracking) is included for free on all domestic shipments. Learn more. Delivery confirmation (tracking) is included on some international shipments.  Further restrictions apply. Learn more.
Insurance (up to $50) included on domestic shipments; restrictions and exclusions apply. Learn more.
Additional Insurance available for added fee. Learn more.
Insurance (up to $200) included on international shipments; restrictions and exclusions apply. Learn more.
Not available for Priority Mail International Flat Rate Envelopes or Small Flat Rate Priced Boxes.
Additional Insurance available for added fee. Learn more.
Insurance limits vary by country. See Individual Country Listings.
Additional confirmation options available for added fee: No additional confirmation options available on international shipments.
Rates: Commercial Base Pricing (discounted retail):
  • ShippingEasy - Starter plan
  • EasyShip widget
Commercial Plus Pricing (discounted commercial):
  • ShippingEasy - Basic and above plans
Four rate options: Two rate options:
View the domestic rate tables:

View the international rate table:

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

 

Priority Mail - Weight Based Rates:

Best Option When: You want the speed of Priority Mail and your packages are light weight or traveling short distances.
Destinations: Domestic International
Service overview: Rates are determined by weight of package and distance it has to travel.
Domestic distance determined by zone. International distance determined by Country Group.
Restrictions: Maximum weight for domestic shipments: up to 70 lbs. Maximum weight for international shipments: up to 70 lbs.  Note: some countries may have lower weight restrictions.  View Country-Specific Restrictions.
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".
Package options: Use your own custom packaging or order free shipping supplies from USPS.

 

Priority Mail - Flat Rates:

Best Option When: You want the speed of Priority Mail and your packages are dense or traveling long distances.
Destinations: Domestic International
Service overview: Rates are determined by package selection.
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.
Maximum weight for domestic shipments: up to 70 lbs. 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 - 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).
Restrictions: 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.
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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