If you need to get a package delivered quickly, you can’t beat Priority Mail Express. With overnight delivery to most locations in the U.S.
By Stamps.com
Last Updated Oct 28, 2025 – 1 min read

If you need to get a package delivered quickly, you can’t beat Priority Mail Express. With overnight delivery to most locations in the U.S. and second-day delivery in outlying areas, this is the fastest USPS domestic shipping service available. The service also includes some great features such as free parcel insurance up to $100 in value, delivery signature confirmation and even a money-back guarantee if your package is not delivered on time.
Sunday and holiday delivery ($12.50 additional fee is required) is also available in many major markets—more than 12,000 ZIP codes across the country! The following list includes every ZIP code where Priority Mail Express Sunday and holiday service is available.









Yes, when you are configuring your label, all you have to do is enter your recipient's email address to ensure they receive tracking information for their package. This email includes the delivery address, mail date, mail class, estimated delivery date, special services, a customizable personal note, and a link with the tracking number.
Drop off your shipment 24 hours a day, seven days a week at one of the 60,000 UPS dropoff locations across the United States. This includes UPS Stores, UPS Drop Boxes, CVS, Michaels, and Advanced Auto Parts.
You can log into your app and visit your "history" page to view real-time tracking information for every item you send. You can also enter your tracking number on the UPS website to see tracking updates.
No. DHL Express typically does not deliver on Sundays in most regions. However, Sunday delivery may be available in select areas or for time-definite international shipments with specific service upgrades. Check with DHL directly for regional availability.
USPS Ground Advantage delivery time is typically the slowest for domestic shipping services, taking two to five business days depending on the destination.
UPS 2nd Day Air guarantees delivery by the end of the second business day. For time-critical shipments, you can choose UPS 2nd Day Air A.M., which delivers by 10:30 AM, 12:00 PM, or 2:00 PM (depending on destination) on the second business day.
UPS Standard generally delivers within 1 to 5 business days, with residential deliveries typically occurring between 9 AM and 9 PM. The exact delivery time depends on the distance the package travels and the specific destination.
UPS Next Day Air offers guaranteed delivery by 10:30 a.m., 12:00 p.m., or end of day on the next business day, depending on the destination and specific service selected. Deliveries are made Monday through Friday, with Saturday delivery available in select areas for an additional fee.
UPS Ground tracking uses a system of scans to update customers on the location and status of their packages as they move through the UPS network. Each package is assigned a unique tracking number, and as it travels, it's scanned at various points, including when it's received, when it's transferred between facilities, and when it's out for delivery.
UPS Ground typically takes 1 to 5 business days for delivery with 90% of UPS® Ground packages being delivered in 3 days or less.
UPS Standard is generally faster than UPS Ground Saver, as it has a typical delivery window of 1-5 business days compared to Ground Saver's 2-7 business days.
UPS Next Day Air is significantly faster than UPS Second Day Air, delivering packages by the next business day, while UPS Second Day Air delivers within two business days. It's the fastest standard overnight service offered by UPS.
UPS Ground Saver is typically slower than UPS Standard, with delivery times ranging from 2-7 business days, whereas UPS Standard generally delivers within 1-5 business days.
UPS 3 Day Select is generally faster than UPS Ground Saver, offering guaranteed delivery within three business days, whereas Ground Saver can take 2-7 business days and has no guaranteed delivery time.
UPS 2nd Day Air is faster than UPS 3 Day Select, offering guaranteed delivery by the end of the second business day, while 3 Day Select provides guaranteed delivery by the end of the third business day.
UPS 3 Day Select guarantees delivery by the end of the third business day after the package is picked up, with deliveries typically occurring Monday through Friday. It's a reliable option for shipments that aren't time-critical but need to arrive within a specific timeframe.
UPS Ground Saver typically delivers packages within 2 to 7 business days across the contiguous United States.
UPS Worldwide Saver guarantees delivery by the end of the business day, one day faster than UPS Worldwide Expedited. This service connects major business centers in over 220 countries and territories with time-definite delivery and customs clearance included.
USPS Priority Mail typically takes one to three business days, depending on destination, to deliver. You can easily check for a delivery time estimate on USPS’s Priority Mail Delivery Map.
The Shipment Confirmation Acceptance Notice (SCAN) form ensures that your packages are scanned by the USPS when they are dropped off or picked up by a mail carrier, so your customer can feel confident that their package is on its way.
Using Stamps.com, you’ll be able to create a SCAN form with a few clicks. Then, hand the form to the clerk or mail carrier, and they will scan the barcode on the form. This scan records an Acceptance event for all the packages associated with the form without having to scan each package individually.
Yes. Your packages may be inspected to ensure compliance, as USPS is very strict about what items qualify for Media Mail.