USPS test: We mailed 4 packages with GPS trackers to see how quickly they got there
USPS mail delivery times
13 Investigates: How long should it take for the postal service to deliver your packages?
USPS to slow down First-Class delivery to help speed up Priority Mail
Why is your mail being delivered so late?
Good Question: How does the post office deliver mail?
How Late Does USPS Deliver Priority Mail Packages? | ReadyCloud
Understanding 1,2&3 Day USPS Priority Mail
How USPS Sorts Mail
How | When It Changes The DELIVERY TIME For PRIORITY MAIL EXPRESS Postal Service Domestic Only 2021
No mail delivery on Sept. 6 for Labor Day, but Priority Mail Express available
First-class packages may take longer to mail through USPS
See Everything That Happens When a Package is Shipped | WIRED
HOW TO ADDRESS A PACKAGE
Request a USPS Refund Online (Domestic)
Is first-class USPS delivery slower? We tested it to find out.
USPS mail delays could soon be a nationwide problem, congresswoman says
Missing bills, late fees and more as delays in mail delivery at USPS continue
We tracked 5 packages with AirTags through priority USPS mail to test out delays
We sent 11 packages with Air Tags through priority mail last month. Here's where they went.