USPS Priority Mail Flat Rate
What is Priority Mail Flat Rate®?
Priority Mail Flat Rate is a 1 to 3 day shipping service provided by the U.S. Postal Service (USPS) that features one flat rate for delivery of a package or envelope to its destination. The service allows a maximum weight of up to 70 lbs. for each envelope or package. Priority Mail Flat Rate® includes free shipping supplies available at the Post Office or sent directly to your residence or business for no charge. Packaging options include three types of envelopes and six boxes in various sizes.
Flat rate pricing eliminates the need to weigh packages or calculate shipping fees, as long as the package weighs less than 70 lbs. Each Priority Mail Flat Rate® Box and Envelope features one low flat rate, so pricing is determined by the box or envelope you choose and not by the weight or distance the package is traveling.
How to Send Packages with Priority Mail Flat Rate®
Shipping a package or envelope using Priority Mail Flat Rate® is very easy. Place your item in one of the many free Flat Rate boxes supplied by the USPS. As long as your item is not heavier than 70 lbs., you will not need to weigh the item.
Postage may be purchased either at the Post Office or online through an online postage provider. Once your package is ready to be shipped, you can schedule a free package pick-up from the USPS at your home or office.
Benefits Of Using Priority Mail Flat Rate® With Stamps.com
Following are the Priority Mail Flat Rate® options and specifications:
Priority Mail® Flat Rate Options
Maximum Weight
Outside Dimensions
Post Office™ Rate
Stamps.com Rate
Flat Rate Envelope
Maximum Weight :
up to 70 lbs.
Outside Dimensions :
12 1⁄2″ x 9 1⁄2″
Post Office™ Rate :
Stamps.com Rate :
Legal Flat Rate Envelope
Maximum Weight :
up to 70 lbs.
Outside Dimensions :
9 1⁄2″ x 15″
Post Office™ Rate :
Stamps.com Rate :
Padded Flat Rate Envelope
Maximum Weight :
up to 70 lbs.
Outside Dimensions :
12 1⁄2″ x 9 1⁄2″
Post Office™ Rate :
Stamps.com Rate :
Small Flat Rate Box
Maximum Weight :
up to 70 lbs.
Outside Dimensions :
8 11⁄16″ x 5 7⁄16″ x 1 3⁄4″
Post Office™ Rate :
Stamps.com Rate :
Medium Flat Rate Box – Top Loading
Maximum Weight :
up to 70 lbs.
Outside Dimensions :
11 1⁄4″ x 8 3⁄4″ x 6″
Post Office™ Rate :
Stamps.com Rate :
Medium Flat Rate Box – Side Loading
Maximum Weight :
up to 70 lbs.
Outside Dimensions :
14″ x 12″ x 3 1⁄2″
Post Office™ Rate :
Stamps.com Rate :
Large Flat Rate Box
Maximum Weight :
up to 70 lbs.
Outside Dimensions :
12 1⁄4″ x 12 1⁄4″ x 6″
Post Office™ Rate :
Stamps.com Rate :
APO/FPO Large Box
Maximum Weight :
up to 70 lbs.
Outside Dimensions :
12 1⁄4″ x 12 1⁄4″ x 6″
Post Office™ Rate :
Stamps.com Rate :
Shipping with Priority Mail Flat Rate® boxes or envelopes using Stamps.com can save you money. Stamps.com customers save up to 10% off the Post Office rate each time they print a shipping label for a Priority Mail Flat Rate® envelope or box. Plus, Stamps.com offers insurance coverage up to $10,000. You can easily track your Priority Mail® packages with “one-click” tracking, eliminating the need to type in long tracking numbers to verify delivery.
Here's how it works...
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Open a Stamps.com account
Simply click the “Get Started”enter your promo code and click the “GO” button to sign up for Stamps.com and get access to all the services of the Post Office right from your computer 24/7. Even get discounts you can’t get at the Post Office!
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Try it out with $5 free postage
We’ll give you 4 weeks to see if Stamps.com is right for you. We’re so confident you’ll like Stamps.com, we’ll also throw in $5 free postage to use during those 4 weeks.
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Don’t pay unless you stay
Cancel your account online or call 1‑855‑608‑2677 to cancel within the 4‑week trial period and pay no service fee. The monthly fee is just $19.99 plus applicable taxes, if any, including the first month. Your service will continue uninterrupted as long as you do not cancel.
$60 in free postage and supplies when you sign up!
- $5 in free postage added to your account
- 5 lb digital scale (only pay for S&H)
- Free mailing and shipping supplies kit
- Risk-free 30-day trial
- No long-term contracts. Cancel anytime.
