Priority Mail Prices
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Fast and affordable delivery to every address in the United States.

  • Delivers within 2 days in most cases.
  • Commercial base prices available for shipping with Click-N-Ship®, PC Postage, Permit Imprint, or an approved information Based Indicia (IBI) metering system.

Priority Mail Flat Rate Boxes and Envelope

Priority Mail Flat Rate Options
Send for one price regardless of weight or distance.
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Priority Mail Flat Rate Options
  Price Size
Priority Mail Flat Rate Envelope $4.95 12-1/2" x 9-1/2"
Priority Mail Small Flat-Rate Box $4.95 8-5/8" x 5-3/8" x 1-5/8"
Priority Mail Regular Flat-Rate Box (FRB1) $10.35 11" x 8-1/2" x 5-1/2"
Priority Mail Regular Flat-Rate Box (FRB2) $10.35 13-5/8" x 11-7/8" x 3-3/8"
Priority Mail Large Flat-Rate Box (Domestic Addresses) $13.95 12-1/4" x 12-1/4" x 6"
Priority Mail Large Flat-Rate Box (APO/FPO Destinations) $11.95 12-1/4" x 12-1/4" x 6"

- Up to 70 pounds.
- No more than 108 inches in combined length and girth.Learn about combined length and girth in a new window
- Balloon Rate applies in Zones 1-4 (including local) for packages weighing less than 20 lbs. and measuring more than 84 inches in combined length and girth.Learn about Balloon Rates in a new window
- Dimensional Weight applies in Zones 5-8 for parcels exceeding one cubic foot capacity.Learn about Dimensional Weight in a new window

Commercial Base Pricing


Commercial Plus Pricing


Learn more about Priority Mail