USPS Priority vs First Class for domestic forwarding

When using a reshipping or mail forwarding service, you typically choose between USPS First Class and Priority Mail for the domestic leg. Here is the actual difference and which to choose.

First Class Mail

First Class is for packages up to 13 ounces. A card in an envelope weighs well under one ounce, placing it comfortably in First Class. Delivery time is 2 to 5 business days nationally. First Class packages have tracking but with less granular events than Priority — typically just acceptance, in transit, and delivered.

Priority Mail

Priority Mail has a 1 to 3 business day service commitment nationally. Tracking is more detailed with processing facility events. Priority is more expensive — typically $8 to $12 for a small package vs $3 to $5 for First Class for the same weight. Priority also offers up to $100 of free insurance against loss or damage.

Which to choose for forwarded cards

For a single ID card, First Class is the right choice. The weight is well within the First Class limit, the 2 to 5 day delivery window is acceptable for something already in transit from overseas, and the cost difference is meaningful across multiple orders. The reduced tracking detail of First Class is not a problem because by the time you are waiting for a domestic forward, the package is already at the US facility — the remaining transit is short and relatively predictable.

Use Priority only if you have a specific deadline requiring the 1 to 3 day service. The insurance is not meaningful for an item whose loss would result in a vendor reship rather than a financial claim.

The insurance distinction matters if you plan to file a postal claim for a lost domestic shipment. First Class provides no insurance, while Priority Mail includes up to $100 coverage. For international packages where the declared value is minimal by design, the insurance difference is less relevant than the tracking reliability difference, since Priority Mail's tracking is more granular and updates more frequently than First Class for most domestic routes.