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Priority Mail Express

Priority Mail Express Shipping Boxes.

Overnight Delivery Guarantee1

Our fastest domestic service, with limited exceptions, available 365 days a year, with a money-back guarantee1 and delivery shipping to most U.S. addresses, including PO Boxes2. Beginning at $25.50 at Post Office™ locations and online.

Flat Rate Pricing3

No weighing or calculating needed up to 70 lbs. Flat Rate envelopes affordable pricing offers one rate to any state. Starting at $25.50 at Post Office locations and online.

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Features

  • Free Package Pickup4 service at your home or office
  • Price includes proof of delivery signature record (if requested at time of purchase), and tracking information with USPS Tracking®
  • Includes up to $100 of insurance5 with most shipments6
  • Overnight scheduled delivery by 10:30 am, or on a Sunday or holiday available in many major markets for an additional fee

See Insurance and Extra Services Details

Pricing

Except for Priority Mail Express Flat Rate envelopes, Priority Mail Express® prices are based on weight and zone. Calculate expected domestic shipping costs for domestic shipments using the Price Calculators.

Calculate a Price

Additional Pricing Information

See Pricing Files
Calculate Volume Prices
Retail Price List
Commercial Base Price List

Free Supplies7 Shipping Price Dimensions Great for...
Flat Rate Envelope $22.68 commercial base

$25.50 at Post Office (retail & online)
12 1/2" x 9 1/2" DocumentsManuscripts
Legal Flat Rate Envelope $22.80 commercial base

$25.70 at Post Office (retail & online)
15" x 9 1/2" Legal Documents
Padded Flat Rate Envelope $23.18 commercial base

$26.20 at Post Office (retail & online)
12 1/2" x 9 1/2" ClothingBooksBoxed Jewelry

For Businesses

USPS Corporate Account

Streamline your payments by charging all of your overnight mail services to one account. And for easy record-keeping, you'll get a monthly report with an itemized list of shipments.

Sign Up

Priority Mail Express Open & Distribute

Expedite the transportation of your bulk mailings with Priority Mail Express Open & Distribute®. Prices are commercial rates based on weight and zone to quickly move your mailings at a reasonable cost. And with a special barcoded label, you can track your shipment.

Learn More

Manage Incoming Mail

Our cost-effective and convenient mail services help you keep up with your incoming mail, and manage your outgoing mail, so you can better focus on growing your business.

Learn More

Overnight Deliveries

Drop off times vary by Post Office but it’s easy to find convenient locations when you know the ZIP Codes you’re shipping to.

Find a Location

Restrictions

Maximum weight is 70 lbs.

You must be able to seal a Flat Rate Envelope within the normal folds.

About Preparing Your Shipment

There are specific regulations and standards for mailing restricted, prohibited, and hazardous materials, including cigarettes and smokeless tobacco.

See All Restrictions

Packages shipped to a Military Post Office (APO/FPO/DPO) pay domestic prices, but require a customs form and have specific restrictions.

Shipping to an APO/FPO/DPO

Request a Refund

If your shipment didn't arrive on the guaranteed delivery date or time, submit a refund request for failure of service within 30 days of the mailing date.

Get Priority Mail Express Refund Information

Disclaimers