However, it would be best to keep the weight limitations in mind while packaging your items. This means that the cost of each box stays the same irrespective of the weight inside of it. On the other hand, the USPS Flat Rate shipping option provides fixed prices for each box size. Therefore, if you need to ship a parcel immediately and are willing to spend a little more than regular shipping, USPS Priority Mail can be an excellent option. This service type is ideal for urgent shipments as it can deliver your items within three business days. Priority MailĪs the name suggests, USPS Priority Mail is a shipping option mainly preferred for priority packages.

Moreover, compare USPS shipping options with us. So, if you want to know which is the best option out of USPS Flat Rate or Priority Mail, keep reading. For affordable rates and timely delivery of packages, USPS provides many services for local and international shipments. Start by asking yourself how much you’re willing to pay for a shipment and when you want it delivered.Īsking such questions can help narrow down your choices to a few services. If you’re worried about using the wrong service type for your shipments, you must do adequate research beforehand to choose the most suitable courier service.

Usps priority mailÂ® flat rate envelope