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Priority Mail International - Your Go-To Guide for Shipping

Diana Zheng
October 21, 2023

Are you a business owner looking to expand your reach internationally? If yes, then you've come to the right place! This comprehensive guide is your essential resource for everything you need to know about Priority Mail International shipping.

What is USPS Priority Mail International?

Priority Mail International is a shipping service offered by the United States Postal Service (USPS) for sending packages and documents outside the United States. It is perfect for international business and personal shipments because it delivers fast to more than 180 countries and territories worldwide.

This service includes reliable tracking, insurance options, and flat-rate pricing for certain destinations. It also offers various package size and weight options, accommodating different shipping needs.

How much does it cost?

USPS Priority Mail International shipping costs

The cost of Priority Mail International is subject to variability based upon factors such as the package weight and size and specific destination country, among others. USPS provides a flexible pricing structure to accommodate different needs.

Furthermore, it extends the convenience of flat-rate pricing options for packages from 4 lbs to 20 lbs (1.81 kg to 9.07 kg), which offers customers a predictable and cost-effective solution for Priority Mail International shipments.

Shipping OptionMaximum WeightPrice*
Envelopes and Small Flat-Rate BoxesUp to 4 lbs (1.81 kg)$30.35
Medium Flat-Rate BoxesUp to 20 lbs (9.07 kg)$37.90
Large Flat-Rate BoxesUp to 20 lbs (9.07 kg)$42.10
*Prices shown above are in USD.

This approach simplifies the pricing aspect, allowing senders to better plan and budget for their shipments, making Priority Mail International an attractive choice for a wide array of shipping requirements.

Priority Mail International Flat Rate

Priority Mail International Flat Rate offers various perks for international shippers:

  1. Predictable Pricing. You'll always know the shipping cost, no matter the package weight, simplifying budgeting.
  2. Cost Savings. Send heavy or dense items within the weight limit and enjoy significant savings over other methods.
  3. Efficiency and Convenience. Free, durable flat-rate boxes come in various sizes, streamlining packing and saving time.

How long does Priority Mail International take?

On average, packages usually take 6 to 10 business days to reach their destination. However, the delivery time for Priority Mail International may differ depending on the destination country and local customs processes, among others. Delivery times can also be longer for certain remote or less accessible areas.

To get a more accurate estimate for your shipment, use the USPS online postage calculator or consult your local post office. Additionally, USPS may provide specific delivery timeframes for different countries on their website, which can help you plan your international shipments more effectively.

Priority Mail International Vs. Priority Mail Express International

Priority Mail Express International

Apart from Priority Mail International, the USPS also offers Priority Mail Express International as another international shipping option. These services differ in terms of speed, cost, and features, and the choice between them can significantly impact your shipping experience.

Priority Mail InternationalPriority Mail Express International
6-10 business days3-5 business days
The money-back-guarantee is only for select countriesThe money-back-guarantee is for all countries
Automatic insurance for USD 100Automatic insurance for USD 200
Full TrackingFull Tracking
Available Package PickupAvailable Package Pickup
Weekend delivery is available to select countriesWeekend delivery is available to all countries
More affordableMore expensive

The choice between these two shipping services largely depends on your shipping priorities. If speed is of the essence and you're willing to pay a premium, Priority Mail Express International is the way to go. On the other hand, if you're looking for a cost-effective international shipping solution with a reasonable delivery timeframe, Priority Mail International may be your preferred choice. Be sure to consider your specific shipping needs and budget when making a decision.

Eligibility and Requirements

When using Priority Mail International for your international shipments, knowing the eligibility criteria and requirements is essential to ensure your packages reach their destination smoothly.

Let's discuss the key factors you need to consider, from where you can send your parcels to proper labelling, packaging, and customs compliance, providing an overview of the essentials for a successful international shipping experience.

Who can use this option?

Priority Mail International is a United States Postal Service (USPS) offering primarily available to U.S. residents and businesses. While Canadian senders can use this service for shipments destined for the United States, Priority Mail International is designed for outbound shipments from the U.S. to international destinations, not for domestic Canadian shipping.

Package Size and Weight Limitations

package weight and size limits
  • Weight Limitation. Priority Mail International packages should not exceed 70 lbs (approximately 31.75 kg) in weight. This is the maximum weight allowed for each parcel.
  • Size Limitation. The maximum size of the package is determined by combining the length and girth. The length of the package should not exceed 60 in (about 152.4 cm), and the combined length and girth (the measurement around the box) should not exceed 108 in (about 274.32 cm).

These limitations are in line with USPS guidelines for Priority Mail International parcels. However, confirming the specific weight and size restrictions and any potential updates is essential by checking with USPS or visiting a local post office before sending your package.

Documentation and Customs Requirements

When using this option, you must carefully review the document and customs requirements to avoid any issues. Please prepare customs forms (CN22 or CN23) to make sure that the package's content and value are accurate. These forms must be securely attached to your shipment. Proper addressing, including sender and recipient information, is critical for successful international delivery.

It's important to understand the destination country's customs regulations and adhere to them diligently. Additionally, be aware that customs duties and taxes may apply, and the sender is responsible for addressing these obligations.

Shipping to Specific Countries

This service is primarily designed for shipping from the United States to various international destinations. It can send packages to over 180 countries and territories worldwide. While it covers a vast majority of countries, the specific availability of the service and delivery times may vary depending on the destination.

Getting Started

International shipping can be a complex process, but with Priority Mail International, you have a reliable and efficient option at your fingertips. Let's discuss the essential steps to get started, from setting up your account to understanding packaging and addressing requirements, making your foray into international shipping hassle-free and successful.

Set Up A USPS Account

Setting up a USPS account is simple and free.

  • Visit the USPS website, click "Sign In/Up," and select "Create a Account."
  • Enter personal details accurately.
  • Create a unique username and password.
  • Complete the security questions.

Once done, you can access USPS services, including Priority Mail International, for shipping and more.

Choose the Right Packaging

Choosing the appropriate packaging for international shipping is crucial. Utilize USPS Priority Mail International Flat-Rate boxes, which are durable and available for free. These boxes come in various sizes and simplify the packing process, ensuring your items are secure and protected during their international journey.

Prepare Items For Shipment

Preparing items for international shipment involves different steps, including:

  • Securely packing them in appropriate containers.
  • Use sturdy packaging to protect items during transit.
  • Fill out customs forms accurately, providing item details and value.
  • Please make sure that the customs declaration is adequately addressed and attached securely.
  • Pay postage and choose a reliable international shipping service like Priority Mail International.

Address and Label Requirements

Understanding address and label requirements for international shipments ensures your packages reach their intended destinations. With accurate addressing, you can prevent delays or misdeliveries. Meanwhile, following the customs labelling rules is necessary for compliance and efficient customs clearance. This knowledge guarantees the successful arrival of your priority mail international shipments.

Things To Know Before Shipping To The US

After getting ready with your first international shipment, there are other aspects you need to learn. Let's cover vital information, from customs regulations to shipping options, ensuring your international mail arrives smoothly and hassle-free.

Calculating Shipping Costs

Learning how to calculate shipping costs is essential for individuals and businesses alike. It helps you budget accurately, price products competitively, and avoid unexpected expenses. It's a vital skill in optimizing shipping strategies, making informed decisions, and ensuring the overall cost-effectiveness of your shipping operations.

Tracking and Insurance Options

Knowing if a carrier offers tracking and insurance can help with shipment security and customer satisfaction. Tracking provides real-time visibility into package location, ensuring accountability. Meanwhile, insurance safeguards against loss or damage, offering financial protection. This knowledge helps you choose a reliable shipping service, assuring a positive shipping experience.

Customs Regulations and Local Laws

As a seller, you must understand customs regulations and local laws for international trade. Compliance prevents customs delays, fines, or confiscated shipments. It also builds customer trust by ensuring seamless deliveries and adherence to the destination country's import and trade rules, avoiding legal issues and fostering a positive business reputation.

Best Shipping Alternative For Overseas Shipping

As mentioned earlier, priority mail international and priority mail express international are both tailored for US international shippers. However, it doesn't mean you can no longer ship outside Canada. You still have the opportunity to expand your business and boost your brand overseas with a different shipping alternative. What is it?


Start your journey with Stallion

Stallion is a reputable Canadian shipping company with a strong presence in the eCommerce sector. This versatile company offers a wide range of shipping services that play a pivotal role in assisting eCommerce businesses in effectively delivering their products to customers not only within Canada but also on a global scale, ensuring seamless and efficient shipping solutions for their valuable customers.

They go the extra mile by providing an extensive selection of international shipping solutions. Through partnerships with APC and PostNL, Stallion offers a wide spectrum of competitive shipping options and rates, allowing businesses to select the best that aligns perfectly with their requirements and budget constraints.

Shipping Fees

From Toronto, Canada

London, England113g (4 oz)CAD 6.2085% off
Hong Kong425g (15 oz)CAD 12.1979% off
Sydney, Australia113g (4 oz)CAD 11.1681%

Delivery Speed

Stallion Express is known for its dependable and efficient delivery services, ensuring that packages reach their destinations securely and on time. With delivery speed typically ranging from 4 to 12 business days, this company offers a balanced approach to global shipping, balancing swiftness with affordability. Customers can count on Stallion Express to provide a reliable and reasonably timed shipping experience.


While Priority Mail International may be intended for US shippers, you still have a better option for international service. Following the guide above, you can maximize your business and improve your brand!

Contact Us

Speak with an expert

Ready to streamline your shipping with Stallion? Reach out to us today! Our dedicated team is here to assist you. Contact us now to explore our shipping solutions and take your eCommerce business to new heights.

Get started today! Ship faster, smarter, cheaper with Stallion.

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