Best Sellers to Elimate Soreness & Recover Faster Priority & Express Mail Delivery Time Estimate Delivery with the U.S.A. USPS Ground takes 3-4 days for delivery. Standard Mail Delivery Time From Zip Code To Zip Code . Find information on our most convenient and affordable shipping and mailing services. - USPS Informed Delivery ® by USPS ® Digitally preview your mail and manage your packages scheduled to arrive soon! The U.S. Welcome to USPS.com. What is the Estimated Delivery Time for Package Services? USPS Priority Mail delivery times are not guaranteed but typically take 1-3 days. The customers go for the First-class mail not only because this is the best way to send their items because of the lesser delivery time, but also because it is very economical. USPS states there is no guarantee it will arrive in the two to three days I paid for. USPS review from Rapid City, South Dakota with 180 Comments: I had a package sent to me by priority mail and its been over a week and no package. USPS Priority Express Mail is guaranteed and takes 1-2 days depending on your zip code. The following two graphs are courtesy of the USPS and show first class and standard mail delivery times (mailing from Anaheim, California) First Class Mail Delivery Time . Delivery to […] The postal worker delivers your letter to the recipients mail box. Only the USPS Express Mail package options come with a money-back guarantee, which means that if the package arrives after the promised delivery time, the sender can get a refund on the delivery charges. The internet is home to numerous calculators (we have talked about one already) that will assist you in figuring out the USPS mail delivery schedule by means of the zip code. Postal Service (USPS) argued that there is no "constitutional right" to timely mail delivery after its own data showed that on-time delivery times … Click here to see larger view Use our quick tools to find locations, calculate prices, look up a ZIP Code, and get Track & Confirm info. Postal Bulletin; Standard Mail Delivery Time . To reach a site that displays expected delivery days based on mailing day, please click here for domestic and here for international. However, the best (and actually the most accurate) one is the United States Postal Service’s own brand option. Or you can call our customer service center at 1-800-ASK-USPS (800-275-8777). * Informed Delivery allows you to view greyscale images of the exterior, address side of letter-sized mailpieces and track packages in one convenient location. First-Class Mail is the most widely used services of the USPS. Residential customers should check this Mail Service Disruptions website first for current, frequently-updated information about whether mail is being delivered to your neighborhood or if your local Post Office is open. Click here to see larger view.