USPS Flat Rate (International) Box Sizes & Prices

USPS Flat Rate (International) allows merchants to ship items for a fixed price, irregardless of weight when using specific packaging.

Ensure the right rate is selected when you sign up for an Easyship account.

USPS Priority Mail International Flat Rate

Package Type
Package Dimensions
Flat Rate Envelope (Express)
12-1/2" x 9-1/2"  or  15" x 9-1/2"
Maximum weight: 4 lbs.
From $45.95+
Flat Rate Envelope
12-1/2" x 9-1/2"  or  15" x 9-1/2"
Maximum weight: 4 lbs.
From $25.55+
Small Flat Rate Box
8-11/16" x 5-7/16" x 1-3/4"
Maximum weight: 4 lbs.
From $26.50+
DVD Flat Rate Box
8-3/4" x 5-9/16" x 7/8"
Maximum weight: 4 lbs.
From $26.50+
Large Video Flat Rate Box
9-9/16" x 6-7/16” x 1-3/4"
Maximum weight: 4 lbs.
From $26.55+
Medium Flat Rate Box
11-1/4" x 8-3/4" x 6"  or  14" x 12" x 3-1/2"
Maximum weight: 20 lbs.
From $48.95+
Large Flat Rate Box
12-1/4" x 12-1/4" x 6"  or  24-1/16" x 11-7/8" x 3-1/8"
Maximum weight: 20 lbs.
From $63.70+

Shipping with USPS Flat Rate (International)


Based on key criteria from users and recipients, USPS Flat Rate (International) has the following ratings

  • Support:
  • Tracking:
  • Speed:
  • Overall:
Market Served: Global

Common questions about USPS Flat Rate (International)

How does USPS Flat Rate (International) work?

To create a shipment with , you must enter your shipment details (such as address and item details) and purchase a shipping label. Print out your shipping labels and attach to your package and then dropoff your package at a designated dropoff location. Dropoff locations can be found here. From there, will arrange shipment to your final destination.

This whole process can be managed on the Easyship platform.

How do I track a USPS Flat Rate (International) shipment?

You can track shipments using the tracking number for the shipment provided and visiting the USPS website.

How do I contact USPS for a shipment?

When shipping with Easyship you do not need to contact . All the information you need about your shipments is available to you through the Easyship platform. If you want to learn more about you can learn more at their website or calling .

What are the shipping rates for USPS Flat Rate (International)?

Pricing varies based on shipment details and destination.

Signup today for a free Easyship account to see the most accurate rates for and other services we offer.

How long will delivery take for a USPS Flat Rate (International) shipment to Australia?

Delivery time varies on origin and destination.

Signup for an Easyship account to see delivery time for all available couriers in your location.

Is there a USPS location near me?

You can find the full list of locations in here.

What can I ship with USPS Flat Rate (International)?

do not have many restrictions on what you can ship, however you should be mindful that things such as alcohol, food & other items are generally restricted to most locations. With ,

Does USPS Flat Rate (International) require a signature on delivery?

offers an optional signature on delivery service. Whether a signature on delivery will be required or not will be decided by the sender at time of shipment creation.

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