Skip Side Navigation
End Side Navigation

Priority Mail Flat Rate

  

For your business

Our Flat Rate options make shipping with USPS even easier.  With Flat Rates, you pay one rate no matter the weight1 or where the package is going making our Flat Rate options A Simpler Way® to ship a package. You get delivery in 1, 2, or 3 business days2 based on where your package started and where it's being sent, free boxes and envelopes, free Package Pickup3 at your home or business, USPS Tracking™, and limited free insurance coverage against loss or damage. Plus, when you ship online, you'll save even more.

Priority Mail® Is Now Even Better. Learn More. Image of Priority Mail Boxes.

Features

  • No weighing or calculating needed1
  • Free Package Pickup3
  • Free USPS Tracking when you ship online and at retail
  • Includes up to $50 in insurance coverage for mailpieces with barcodes paid at Retail and Commercial Base® pricing4
  • Includes up to $100 insurance coverage for mailpieces with barcodes paid at Commercial Plus® pricing4
  • Expected delivery within 1, 2, or 3 business days2 based on where your package started and where it's being sent
  • Saturday delivery and residential delivery at no extra charge5


Downloadable Pricing Files
Priority Mail - Commercial Base
Priority Mail - Commercial Plus
Priority Mail - Commercial Plus Cubic
Priority Mail - Retail

Compare other USPS® mailing and shipping services ›

1 For mailable items up to 70 lbs.
2 Based on origin and destination. Expected delivery day printed on receipt or provided at checkout.
3 For details on free Package Pickup, go to www.usps.com/pickup.
4 Some restrictions apply. Visit usps.com/makingprioritymailbetter for details.
5 Except if Saturday is a national holiday. Priority Mail Express™ service may be available for an added charge.

Service/Option

Size

Great for…

Order Now

Letter Envelope

12-1/2" x 9 1/2"

Letters
Documents
Manuscripts


Gift Card Envelope

10" x 7"

Oversized Greeting Cards
Gift Cards


Window Envelope

10" x 5"

Pre-addressed Envelopes


Small Envelope

10" x 6"

Small Documents Passports


Padded Envelope

12 1/2" x 9 1/2"

Clothing

Books

Boxed Jewelry


Legal Envelope

15" x 9 1/2"

Legal Documents


Small Box

Outside:
8 11/16" x 5 7/16" x 1 3/4"

Inside:
8 5/8" x 5 3/8" x 1 5/8"

Brochures

Small Electronics


Medium Box 1

Outside:
11 1/4" x 8 3/4" x 6"

Inside:
11" x 8 1/2" x 5 1/2"

Office Supplies

Shoes


Medium Box 2

Outside:
14" x 12" x 3 1/2"

Inside:
13 5/8" x 11 7/8" x 3 3/8"

Office Supplies

Shoes


Large Box

Outside:
12 1/4" x 12 1/4" x 6"

Inside:
12" x 12" x 5 1/2"

Laptop Computers

Care Packages


APO/FPO/DPO Large Box

Outside:
12 1/4" x 12 1/4" x 6"

Inside:
12" x 12" x 5 1/2"

Sending packages to military personnel


Large Board Game Box

Outside:
24 1/16" x 11 7/8" x 3 1/8"

Inside:
23 11/16" x 11 3/4" x 3"

Board Games


Priority Mail Flat Rate® Shipping. Get free Priority Mail® supplies. Image of Priority Mail boxes and envelopes. No Need to Bring Returns to the Post Office™. Schedule a pickup now. Image of 3 packages on a doormat.Ship Online. Print a label with postage. Image of a printer with shipping label and box.