Priority Mail
1-3 Business Days1 & Flat Rate Pricing2
Priority Mail® service includes tracking and delivery in 1-3 business days1. Check delivery time estimates on the Priority Mail Delivery Map. Priority Mail Flat Rate® products let you ship packages up to 70 lbs to any state at the same price. Ship from Post Office™ locations or online from your home or business. Prices start at $9.65 at a Post Office. (Ship online with enhanced Click-N-Ship® service and get lower Commercial Rates. Businesses can get additional savings by opting in to the Business Rate Card .)
Features & Pricing
- Fast delivery time: 1-3 Business Days1
- Free Package Pickup3 service at your home or office
- Includes USPS Tracking®4 and up to $100 of insurance5 with most shipments6 (restrictions apply)
- No surcharges for fuel; residential or rural delivery; or Saturday7 delivery
- Flat Rate and prepaid pricing (retail only) available
- Prepaid Forever Priority Mail Flat Rate. Except for Priority Mail Flat Rate packaging, Priority Mail prices are based on weight and zone. With Prepaid Forever Priority Mail Flat Rate, you get the same Flat Rate pricing with the added convenience of Forever® postage.
- USPS Label Delivery service: Even if you don't have a printer, you can still ship online using enhanced Click-N-Ship—for an extra $1.25 per label, we'll print an outbound label and deliver it to you. (Businesses can also request return labels for their customers.)
Weight, Size, & Shape Requirements
Use USPS Priority Mail Flat Rate packaging and pay one price:
- Pay the same price for mailpieces weighing up to 70 lbs going anywhere in the U.S.
- Use our Priority Mail Flat Rate Envelopes or Boxes that come in standard sizes so you don't have to worry about measuring them.
- When sealing a Flat Rate Envelope or Box, the container flaps must be able to close within the normal folds.
Use your own box and pay by weight and zone (distance):
- Pay for your package based on how much it weighs and how far it’s going (the zone). Maximum weight is 70 lbs.
- You’ll need to measure your package to make sure it meets the size standards.
- Maximum combined length and girth (girth is the distance around the thickest part) is 108 inches. Tips for Measuring Packages
- Additional Fees:
- Dimensional (DIM) weight rates apply to large, lightweight packages. If your package is larger than 1 cubic foot (1,728 cubic inches):
- Multiply Length x Width x Height and divide by 166 to get the DIM weight in pounds.
- If the DIM weight is greater than the actual package weight, you’ll need to pay the DIM weight price.
- If you give inaccurate dimensions and/or don’t pay the DIM weight rate (when it applies), you’ll pay a dimension-noncompliance fee.
- Nonstandard Fee: You’ll pay an extra fee for sending a nonstandard size if your package measures:
- Between 22 and 30 inches long: add $4.00
- More than 30 inches long: add $18.00
- More than 2 cubic feet (3,456 cubic inches): add $30.00
- Dimensional (DIM) weight rates apply to large, lightweight packages. If your package is larger than 1 cubic foot (1,728 cubic inches):
TIP: Use the USPS® Price Calculator tool to calculate your domestic postage costs. You'll need to know your package’s weight, shape, and size measurements.
Priority Mail Flat Rate Products
Bonus: If you ship online with enhanced Click-N-Ship service, you’ll save with lower Commercial Rates. Businesses can get additional savings by opting in to the Business Rate Card. Expand All
| Free Supplies8 | Shipping Price | Dimensions | Great For… |
|---|---|---|---|
| Flat Rate Envelope | $9.00 Commercial Pricing $10.45 at Post Office |
12 1/2″ x 9 1/2″ |
Passports & Passport Applications Documents Manuscripts |
| Window Flat Rate Envelope | $9.00 Commercial Pricing $10.45 at Post Office & Online |
10″ x 5″ 12 1/2″ x 9 1/2″ |
Pre-addressed Envelopes |
| Small Flat Rate Envelope | $9.00 Commercial Pricing $10.45 at Post Office |
10″ x 6″ |
Small Documents Oversized Greeting Cards Gift Cards |
| Padded Flat Rate Envelope | $9.80 Commercial Pricing $11.20 at Post Office |
12 1/2″ x 9 1/2″ |
Clothing Books Boxed Jewelry |
| Legal Flat Rate Envelope | $9.30 Commercial Pricing $10.75 at Post Office |
15″ x 9 1/2″ |
Legal Documents |
| Small Flat Rate Box | $9.55 Commercial Pricing $11.00 at Post Office |
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 Flat Rate Box — 1 (top-loading) | $16.85 Commercial Pricing $19.30 at Post Office |
Outside: 11 1/4″ x 8 3/4″ x 6″ Inside: 11″ x 8 1/2″ x 5 1/2″ |
Office Supplies Shoes |
| Medium Flat Rate Box — 2 (side-loading) | $16.85 Commercial Pricing $19.30 at Post Office |
Outside: 14″ x 12″ x 3 1/2″ Inside: 13 5/8″ x 11 7/8″ x 3 3/8″ |
Office Supplies Shoes |
| Large Flat Rate Box | $23.05 Commercial Pricing $26.00 at Post Office |
Outside: 12 1/4″ x 12 1/4″ x 6″ Inside: 12″ x 12″ x 5 1/2″ |
Laptop Computers Gifts etc. |
| APO/FPO/DPO Flat Rate Box | $21.35 Commercial Pricing $24.25 at Post Office |
Outside: 12 1/4″ x 12 1/4″ x 6″ Inside: 12″ x 12″ x 5 1/2″ |
Sending Gifts to Troops |
| Large Flat Rate Board Game Box | $23.05 Commercial Pricing $26.00 at Post Office |
Outside: 24 1/16″ x 11 7/8″ x 3 1/8″ Inside: 23 11/16″ x 11 3/4″ x 3″ |
Board Games |
| Prepaid Forever Priority Mail Flat Rate® Packaging | From $10.45 at Post Office |
Various Sizes Available |
Various Options |
1. In most cases, the expected delivery date printed on your receipt or provided at checkout will reflect a delivery time of 1, 2, or 3 business days and is based on origin, destination, and drop-off time. The expected delivery date does not come with a money-back guarantee. Back ^ to legal disclaimer 1
2. For mailable items up to 70 lbs. Back ^ to legal disclaimer 2
3. For details on free Package Pickup, visit Schedule a Pickup. Back ^ to legal disclaimer 3
4. Excludes Prepaid Forever Priority Mail Flat Rate products. Back ^ to legal disclaimer 4
5. Available only for certain products and to certain destinations. Restrictions and exclusions apply. Insurance does not cover certain items. For details, visit 609.4.3 (Non-payable Claims), 609 (Filing Indemnity Claims for Loss or Damage), and 503.4 (Insured Mail) of the Domestic Mail Manual. Back ^ to legal disclaimer 5
6. To qualify for included insurance, Priority Mail domestic shipments must have the applicable USPS Tracking barcode. Insurance is not included for Priority Mail shipments sent using Priority Mail Open & Distribute, Premium Forwarding Service-Residential or Premium Forwarding Service-Commercial. For shipments valued at more than $100, additional insurance may be available for purchase. When additional insurance is purchased, it replaces the included insurance. Back ^ to legal disclaimer 6
7. If Saturday is a national holiday, Priority Mail Express service may be available for an added fee. Back ^ to legal disclaimer 7
8. Boxes and envelopes are delivered with your regular mail usually within 7 to 10 business days. Back ^ to legal disclaimer 8