If you prefer to use your own packaging, you can purchase shipping labels online with USPS's “Click-N-Ship' service or in person at your local post office. The package's maximum combined length and width are 108,' and Flat Rate envelopes or boxes' flaps must be able to close. With Priority Mail's Flat Rate pricing, all items under 70 pounds ship at the same price. However, Priority Mail is easier to estimate because USPS provides standard envelopes and boxes for Priority Mail items. The cost of sending a letter, package, or item via USPS priority mail varies depending on its size. Proof of delivery signature record and package pickup (from home or office) is also available at no cost-just be sure to request it when checking out. This is the only service option within the USPS that offers Sunday delivery options. With Priority Mail Express, customers can pay an additional fee for Sunday or holiday delivery. This service option includes a money-back guarantee of delivery time and $50 of insurance on the package. Items arrive either the next day or within two days by 6 p.m. Priority Mail Express is USPS's fastest delivery offering. However, if you want your package to arrive faster, you have options to expedite delivery even further with the Priority Mail Express option. Transit times will probably vary depending on the originating and final package locations. Standard Priority Mail promises delivery within 1 to 3 business days for domestic shipments. USPS offers several different options for Priority Mail. It includes mail delivery service six days a week but does not include Sunday delivery service. This service also includes free package pickup from your home or office if you don't have the time to make it to a post office location. Essentially, the name gives it away: this delivery service is USPS's top priority to ship out. Priority Mail, a delivery service by USPS, offers fast delivery times and includes USPS tracking to know where your package is at all times.

What is it? And how does it differ from USPS's regular mail shipping service? Their bestselling service option is Priority Mail. Which option you need to choose when shipping depends on when you want the item to arrive.

USPS offers a wide range of shipping services that fit various needs. Postal Office (USPS), you have multiple options. When mailing a flat envelope or package with the U.S.

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