Which service uses Flat Rate packaging that is priced the same regardless of destination?

• A. Priority Mail
• B. First-Class Mail
• C. Priority Mail Express
• D. Priority Mail Flat Rate

Answer: (D)

Flat Rate packaging charges a fixed price based on the size of the box or envelope, not on the weight or the distance the item travels. In Priority Mail Flat Rate, you pay one price to ship anywhere within the United States as long as the item fits in the chosen Flat Rate container and stays within the 70-pound limit. This means destination doesn’t affect the cost—the same price applies whether you’re shipping across town or across the country, as long as the packaging size is the one you’re using.

Other USPS services don’t use this fixed-rate approach. Their prices depend on how heavy the item is and how far it needs to go (the destination’s distance or zone), so costs can vary with location and weight. That distinction is why Flat Rate packaging is the feature described here.