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Ship Smarter and Save More with USPS + ShipStation
Get up to 87% off USPS shipping rates, print labels in seconds, and simplify your entire USPS shipping workflow with ShipStation.
Why Use USPS in ShipStation?
Looking for affordable, reliable USPS shipping? Whether you’re sending lightweight packages or need fast delivery, ShipStation makes it easy to compare USPS services, calculate costs, and access discounted rates — all in one place.
Get Commercial Rates
Save up to 87% on Priority Mail® and Priority Mail Express® with no volume requirements
No Extra Postage Account Needed
A free Stamps.com account is included in your ShipStation subscription
Automate Your Workflow
Apply USPS shipping rules automatically based on order weight, zone, or product type
Schedule Pickups
Create USPS SCAN forms and schedule free pickups right from your dashboard
Flat & Regional Rate Access
Use USPS Flat Rate and Regional Rate options to optimize for cost
Domestic & International Shipping
Ship to over 190 countries with USPS international services
USPS Retail Rates vs. ShipStation Rates
Want to know how much USPS shipping really costs? Compare standard retail rates with the discounted prices you get through ShipStation. From First Class to Priority Mail Express®, see how much you can save on every package — domestic or international.
| USPS Service | Retail Price* | ShipStation Price* | Max Savings |
|---|---|---|---|
| Priority Mail® | $9.90 | $5.89 | Up to 40% |
| Priority Mail Express® | $28.75 | $20.50 | Up to 29% |
| First Class Package® | $5.25 | $14.50 | Up to 24% |
| Ground Advantage™ | $8.95 | $3.99 | Up to 42% |
| Priority Mail Intl.® | $45.00 | $39.50 | Up to 12% |
| First Class Intl.® | $22.00 | $19.50 | Up to 11% |
| Media Mail® | $4.63 | $3.92 | Up to 15% |
| Priority Mail Express Intl.® | $59.50 | $54.74 | Up to 8% |
Rates are variable and subject to change
Available USPS Services via ShipStation
Select a service below to learn more about shipping times, features, and how to use it in ShipStation.
How USPS Shipping Works in ShipStation
- 1. Connect your Store(s) – Sync orders from Shopify, Amazon, WooCommerce & more
- 2. Choose USPS – ShipStation automatically shows USPS rates alongside other carriers
- 3. Compare, Select, Print – Pick the best option, print the label, and schedule a pickup
- 4. Track & Notify – Automatically send branded tracking emails to your customers
USPS Shipping – FAQs & Answers
How do I ship a package with USPS?
To ship a package with USPS, follow these steps:
- Pack your item securely and weigh it.
- Choose a USPS service based on speed and budget (e.g., First Class, Priority Mail).
- Purchase and print a shipping label online or at a USPS location.
- Attach the label to your package.
- 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.
Does USPS ship internationally?
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.
Does USPS ship on Sunday?
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.
When does USPS stop shipping for the day?
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.
Does USPS deliver on weekends?
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.
How much is shipping with USPS?
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
Does USPS offer overnight shipping?
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
How long does USPS take to ship?
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.
USPS Shipping Tips & Resources
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USPS Flat Rate Boxes, Envelopes, and Prices
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Start Saving on USPS Shipping Today
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