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Express Mail Flat Rate™ Envelope

 

With the Express Mail Flat Rate Envelope and Express Mail Flat Rate Legal Envelope, you get our fastest service with overnight delivery to most U.S. addresses including PO Boxes and military addresses all for one low, Flat Rate. And you’ll save even more when you buy Express Mail Flat Rate postage online.

Includes Free Package Pickup™, signature proof of delivery, and $100 in insurance with additional insurance available up to $5,000.

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Express Mail Flat Rate Envelope

Features

  • No weighing or calculating needed*
  • Overnight delivery to most locations
  • Free Package Pickup™**
  • Money-back guarantee***
  • Includes signature proof of delivery and delivery status information with our Track & Confirm tool
  • Includes $100 in insurance coverage

Express Mail Flat Rate Envelope
$18.30 at the Post Office™
$17.40 paid online

Express Mail Flat Rate Legal Envelope
$18.30 at the Post Office™
$17.40 paid online

Order EnvelopesShip Online Now

 

Find out when and where to drop off to get an overnight delivery ›
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The optional Express Mail Hold For Pickup service, available for free, lets you have your shipment held at any one of our Post Offices™ to await pickup. Sunday and holiday deliveries are also available for an extra fee.

*Up to 70lbs.
**For details on Free Package Pickup, visit usps.com/pickup.
***Some restrictions apply.

With Express Mail service, you already get …

Insurance coverage up to $100.

Signature proof of delivery available by request after delivery.

Delivery status info with our Track & Confirm tool.

Carrier Pickup™ service to have your carrier pick up the package at your door.

You can add the following option online…

Insurance coverage from $101 to $5,000.

You can add the following options at a Post Office™…

Insurance coverage from $101 to $5,000.

Return Receipt with proof of delivery sent by mail.

Collect on Delivery (COD) Recipient pays for merchandise and shipping when they receive the package.

Learn more about extra services ›

If It Fits, It Ships®* photo of express mail envelope Order free Express Mail® Flat Rate Envelopes *Mailable items up to 70 lbs.Get Postage for Expedited Mail photo of 2 postage stamps showing a bridge, water and a flying bird Buy Express Mail® stamps>Ship Online. Print a label with postage photo of computer printer with shipping label and brown box