Couriers
USPS First-Class Package Tracking lets you see where your package is during delivery. Each shipment comes with a tracking number you can use on the USPS website or on third-party platforms like Ship24 to check updates as your item moves through the system. This tracking service is included for free and is available for lightweight packages shipped within the U.S.

Tracking a USPS First-Class Package is simple. Just enter the tracking number assigned to your shipment. You can do this directly on the USPS website or use tracking tools like Ship24 for added visibility across couriers.
Visit the USPS tracking page or go to Ship24's USPS tracking tool. Enter the tracking number, and you’ll see the most recent scan event, current location, and estimated delivery date.
The system shows when your package was accepted, departed from a facility, arrived at a sorting center, or was delivered. It also flags delays or exceptions when they happen.
Related:
USPS Priority Mail Tracking USPS Media Mail Tracking USPS First Class Package International TrackingSometimes tracking info doesn’t refresh for a few days. This can happen due to scanning delays, package handoffs, or system issues. It doesn’t always mean the shipment is stuck.
If the status hasn't changed in a few days, check the expected delivery window first. Still no update? Try tracking with Ship24 or contact USPS customer service for help.
Related:
USPS Support Phone Number USPS Priority Mail Express Tracking USPS Priority Mail Express International TrackingMost USPS First-Class Packages arrive within 2 to 5 business days. Delivery time can vary based on distance, processing volume, and weather conditions. First-Class Mail, which covers letters and postcards, usually takes 1 to 5 business days.
This service is for items under 16 ounces. Packages must meet USPS size standards. For example, anything over 108 inches in combined length and girth may not qualify and could be charged differently.
USPS First‑Class Package Service is now part of USPS Ground Advantage. Pricing depends on the weight of the parcel and the delivery zone. Tracking is included at no additional cost.
| Weight (oz) | Retail Price (USD) | Commercial Price (USD) |
|---|---|---|
| Up to 4 oz | $6.80 | $4.20 |
| 5 – 8 oz | $7.25 | $4.50 |
| 9 – 12 oz | $7.75 | $4.95 |
| 13 – 15.999 oz | $8.25 | $5.35 |
Additional fees apply to packages that exceed standard size limits:
To estimate your shipping cost, use the USPS Price Calculator based on weight, dimensions, and destination.
Make sure your package fits within USPS standards. Use a sturdy box or mailer that protects your item. Keep it under 16 ounces to qualify for First-Class rates.
Calculate the cost online or at a post office. Print your label, attach it securely, and drop the package off at a USPS location or collection box. You can also schedule a pickup.
It’s a service that lets you follow your package’s delivery progress using a tracking number. It’s included at no extra cost when you ship with USPS First-Class Package.
Updates can be delayed due to scanning issues or transit lag. Wait a few days, then try tracking again or contact USPS for assistance.
It usually takes 2 to 5 business days for domestic packages, depending on the destination and shipping volume.
Yes. You don’t need to pay extra to track your package when using USPS First-Class Package service.
Small parcels under 16 ounces that fit USPS size limits, such as lightweight boxes or padded envelopes. It's not for letters or documents — those fall under First-Class Mail.