Ship Smarter and Save More with USPS + ShipStation

To ship a package with USPS, follow these steps:

1. Pack your item securely and weigh it.
2. Choose a USPS service based on speed and budget (e.g., First Class, Priority Mail).
3. Purchase and print a shipping label online or at a USPS location.
4. Attach the label to your package.
5. Drop it off at a USPS mailbox or post office, or schedule a pickup.

USPS offers services for domestic and international shipments with tracking and delivery options for every need.

Yes, USPS provides international shipping to over 190 countries. Common services include:

• First-Class Package International® – Affordable for small, light parcels
• Priority Mail International® – Reliable and cost-effective for larger items
• Priority Mail Express International® – Fastest USPS international option

International shipments require customs forms, which are typically included with online label purchases.

USPS delivers on Sundays only for certain services:

• Priority Mail Express® – Available 365 days a year, including Sundays and holidays
• Amazon packages – In select areas as part of USPS’s last-mile delivery partnership

For most standard services (First Class, Priority, Ground Advantage), Sunday delivery is not available.

USPS delivery hours typically end around 5:00 to 6:00 PM local time. However, actual cutoff times may vary depending on:

• Your local post office hours
• Volume of deliveries
• Mail class (Express services can deliver later)

Retail locations generally stop accepting packages shortly before closing.

Yes, Saturday delivery is standard for most USPS services, including:

• First-Class Mail®
• Priority Mail®
• Ground Advantage™

Sunday delivery is limited to Priority Mail Express® and select Amazon shipments in metropolitan areas.

USPS shipping rates depend on:

• Package weight
• Size and dimensions
• Destination (zone or country)
• Service speed

Typical starting prices:

• First-Class Package: from $4.00
• Priority Mail: from $8.00
• Priority Mail Express: from $26.00
• Ground Advantage:from $6.00

Yes, USPS offers overnight delivery through Priority Mail Express®, its fastest service. It includes:

• Guaranteed overnight to 2-day delivery to most U.S. addresses
• Sunday and holiday delivery in many locations
• Tracking and insurance included

Estimated delivery times by USPS service:

• First-Class Package: 1–5 business days
• Ground Advantage™: 2–5 business days
• Priority Mail®: 1–3 business days
• Priority Mail Express®: 1–2 days (guaranteed)
• Media Mail®: 2–8 business days
• International: 3–21 days depending on service and destination

Delivery times are estimates and may vary based on distance, volume, and holidays.