USPS Priority Mail FAQs


If you are looking for a fast and cost-effective way to send out packages or large envelopes, there are two USPS® Priority Mail options you should know more about: Priority Mail and Priority Mail Express.

What Is USPS Priority Mail?

Priority Mail is one of the most popular services from the USPS®. It delivers your packages in 1, 2, or 3 business days—including Saturdays! Send your items in regular packaging or use USPS® Priority Mail flat rate boxes. These boxes can be ordered online or picked up at the Post Office™.

Priority Mail flat rate boxes allow you to pay one flat rate regardless of how much your item weighs. This is a valuable cost-savings option when you are sending heavy items. For more on flat rate boxes and how much they cost, check out our blog on flat rate boxes blog post.

How Long Does Priority Mail Take?

Priority Mail takes 1, 2, or 3 days depending on your location and the shipping destination. For example, it takes two days to ship a package from New York City, New York, to San Francisco, California. However, it takes three days to ship from the same destination to Cheyenne, Wyoming.

If your package is time-sensitive, check whether Priority Mail takes 1, 2, or 3 days to reach its destination. The Post Office™ or our built-in NeoShip software can tell you the estimated arrival date when you enter your location and destination, or you can refer to the USPS zone map.

If you need guaranteed delivery by a certain day, ship with Priority Mail Express. Priority Mail Express offers guaranteed overnight service for most zip codes.  

Does Priority Mail Have Tracking?

Priority Mail has free USPS® tracking that you can get at the Post Office™ or right at your desk using NeoShip shipping software! If you need more visibility to your packages or a written record of their arrival, you can add on Certified Mail®, Signature Confirmation™, or Return Receipt for an additional charge.

How Much Does Priority Mail Cost?

The retail cost of USPS® Priority Mail ranges from $7-$200 and it is determined by the weight of the package and the distance it is traveling. For example, a 1 lb. package going to Zone 1 can cost as low as $7.35. However, a 70 lb package that is going to Zone 9 can cost as much as $230 dollars. But don’t panic, the USPS has a great option for heavy items and shippers who are sending items long distances—flat rate boxes!

With flat rate boxes, no weighing or calculating is needed. You are charged one flat rate to send an item, and it isn’t based on weight or distance. So those heavy items that would cost $230 dollars can cost as little as $7.90 using a small flat rate box! For the full list of flat rate box options and prices, see the chart below.

Priority Mail Flat Rate Retail Prices NeoShip Prices
Flat Rate Envelopes $7.35 $6.95
Legal Flat Rate Envelope $7.65 $7.25
Padded Flat Rate Envelope $8.00 $7.55
Small Flat Rate Box $7.90 $7.50
Medium Flat Rate Box $14.35 $12.80
Large Flat Rate Box $19.95 $17.60
APO/FPO/DPO Large Flat Rate Box $18.45 $16.10
Priority Mail Express Flat Rate Retail Prices NeoShip Prices
Flat Rate Envelopes $25.50 $22.68
Legal Flat Rate Envelope $25.70 $22.80
Padded Flat Rate Envelope $26.20 $23.18


Priority Mail also has special commercial rates that can save businesses up to 40% on shipping costs. Businesses can access Priority Mail commercial rates by using low-cost shipping software like NeoShip. To see how much you can save on flat rate shipping prices visit our flat rate shipping resources page.

Does Priority Mail include insurance?

Priority Mail shipments include insurance up to $50 at no extra charge. If you are shipping something more valuable and you’d like additional insurance you can purchase it at the Post Office.

Priority Mail vs. Priority Mail Express

Priority Mail Express is the USPS’s fastest service, and it comes with some perks: guaranteed overnight delivery. Guaranteed overnight delivery is available 365 days a year, and includes free USPS tracking and delivery signature record. Here are all the benefits of Express and how it stacks up against the more economical Priority Mail service:

  Priority Mail Priority Mail Express
Delivery Timeline 1, 2, or 3 days—depending on origin and destination zip codes Overnight—to most zip codes
Guaranteed On-Time Delivery No Yes
Tracking Included Yes Yes, plus delivery signature record upon request
Prices $7.35 - $230.10 $25.50 - $581.15
Flat Rate Shipping Options Yes, starting at $7.35 Yes, starting at $25.50
Insurance Yes, includes up to $50 Yes, includes up to $100
International Available Yes Yes


Shipping with Priority Mail and Priority Mail Express is a low-cost alternative to other major carriers. For a full list of the USPS services and rates download our 2019 Postal Rate Guide. To learn more about how you can save up to 40% on Priority Mail with NeoShip shipping software, just click Learn More below and start saving!


NeoShip is now included with every mailing system at no additional cost