USPS international shipping reaches about 180 countries through four main services: Priority Mail Express International (3–5 business days to many major markets), Priority Mail International (6–10 business days), First-Class Package International Service for light, low-value packages, and First-Class Mail International for documents. Every service needs an electronic customs form for goods, and some destinations are currently suspended, so check USPS service alerts before you ship.
This guide compares the services on speed, weight limits, tracking and insurance, then covers customs forms, restricted items, country suspensions and how to pay less. For prices on a specific package, use the calculator links below rather than a printed chart, since international prices change with the country and the weight.
Table of Contents
- Which USPS International Shipping Services Are Available?
- How Long Does USPS International Shipping Take?
- Which Services Include Tracking and Insurance?
- What Determines the Price of USPS International Shipping?
- What Customs Forms Does USPS International Shipping Require?
- What Can’t You Send With USPS International Shipping?
- Which Countries Are Suspended or Restricted?
- How Do You Ship a Package Internationally With USPS?
- How Can You Save on USPS International Shipping?
- Frequently Asked Questions
Which USPS International Shipping Services Are Available?
USPS currently sells four international services for most senders, plus Airmail M-Bags for bulk printed matter. Global Express Guaranteed, the former fastest option, has been suspended since September 29, 2024.
| Service | Expected delivery | Max weight | Tracking | Insurance | Best for |
|---|---|---|---|---|---|
| Priority Mail Express International | 3–5 business days to many major markets | 70 lb (Flat Rate Envelope 4 lb); country limits may be lower | USPS Tracking (limits may apply in some countries) | Included up to $200 for merchandise, $100 for documents; up to $5,000 available | Urgent documents and higher-value goods |
| Priority Mail International | 6–10 business days | 70 lb by weight; Flat Rate Boxes 20 lb; Flat Rate Envelope 4 lb | USPS Tracking | Included except Flat Rate Envelopes and Small Flat Rate Boxes; up to $5,000 available | Most parcels over 4 lb |
| First-Class Package International Service | Varies by destination | 4 lb (64 oz), contents valued up to $400 | E-USPS DELCON INTL to select destinations only | Not available | Light, low-value packages |
| First-Class Mail International | Varies by destination | 15.994 oz, documents only | Not available | Not available | Letters, cards and paperwork |
| Airmail M-Bags | Varies by destination | 66 lb, printed matter only | USPS Tracking (limits may apply) | Not available | Books and catalogs to one address |
Country limits matter: USPS’s International Mail Manual (IMM) lists each destination’s maximum weight and size, and some are lower than 70 lb. Priority Mail International to Taiwan, for example, is capped at 44 lb, and to the United Kingdom at 66 lb. Our guide to USPS Priority Mail International Flat Rate boxes covers the most popular service in detail.
How Long Does USPS International Shipping Take?
USPS gives expected delivery ranges, not guaranteed dates, for most international services. Priority Mail Express International is typically 3–5 business days to many major markets and Priority Mail International 6–10 business days, while First-Class services vary by destination.
Customs clearance in the destination country can add days to any of them, and the foreign postal service handles final delivery. Priority Mail Express International carries a money-back guarantee only to select destinations, and that guarantee has been suspended to Great Britain, New Zealand, Sweden, Israel, Singapore and Switzerland since October 25, 2021, according to USPS’s international service alerts.
International transit works very differently from domestic service; for comparison, our USPS domestic delivery-time guide shows how long Priority Mail and Ground Advantage take within the U.S.
Which Services Include Tracking and Insurance?
Priority Mail Express International and Priority Mail International include USPS Tracking, which follows the package to the destination country and usually through delivery. First-Class Package International Service offers only electronic delivery confirmation to select destinations, and First-Class Mail International has no tracking at all.
International tracking numbers use a 13-character format such as CP 000 000 000 US, and you can look them up at USPS.com; our USPS tracking ID lookup guide shows where to enter them. For proof of mailing and delivery on important domestic documents, see how to send Certified Mail, which isn’t available internationally; Registered Mail is the international equivalent for many countries.
Insurance follows the same pattern. Priority Mail Express International and most Priority Mail International shipments include coverage up to $200 for merchandise, with more available up to $5,000, while First-Class services can’t be insured.
What Determines the Price of USPS International Shipping?
USPS international prices depend on four things: the service, the package weight, the destination’s price group, and whether you buy at retail or commercial prices online. Destinations are grouped by country rather than by U.S. distance, so two countries on the same continent can be priced differently.
- Service: Express costs more than Priority, which costs more than First-Class Package.
- Weight: prices step up by weight for every service except Flat Rate.
- Flat Rate: Priority Mail International Flat Rate Envelopes and Boxes charge one price per country group, regardless of weight up to the limit.
- Where you buy: commercial prices online are lower than Post Office retail prices.
Duties and taxes are separate from postage and are usually paid by the recipient. Our USPS international shipping rates guide explains how prices work by country, and the USPS international shipping calculator guide shows how to estimate a specific package. To see discounted prices for your box right now, use the ParcelPath rate calculator.
What Customs Forms Does USPS International Shipping Require?
Any international package containing goods needs a customs declaration, and USPS asks you to prepare it electronically, either online when you buy postage or at a Post Office. Documents-only First-Class Mail International letters generally don’t need one.
USPS now requires more detailed descriptions of contents on all international packages. Generic entries such as “gift,” “clothing” or “parts” can lead to delays or returns, so describe each item specifically, give its quantity, value and country of origin, and mark gifts versus merchandise correctly.
- Be specific: “women’s cotton T-shirt” rather than “clothing.”
- Declare real values: the destination’s customs authority uses them to assess duties and taxes.
- Check new rules: USPS notes that starting July 1, 2026, merchandise valued up to €150 sent to EU customs countries may face new import duties and requirements.
- Include contact details: a recipient phone number or email helps customs and the delivering post contact them.
Our USPS shipping hub links to every USPS service guide, and our country guides, such as how much it costs to ship to Canada, cover destination-specific customs rules.
What Can’t You Send With USPS International Shipping?
USPS prohibits some items for every international destination, and each country adds its own prohibitions and restrictions in its IMM country listing. Read that listing before you pack.
- Hazardous materials: explosives, flammable liquids, most aerosols, paints and many chemicals.
- Lithium batteries: allowed internationally only when installed in the device they power, in small quantities; loose batteries aren’t accepted.
- Restricted by many countries: perishable food, plants and seeds, alcohol, tobacco, medicines, currency and precious stones.
- Weapons and ammunition: not mailable internationally.
Mailing the wrong item can mean a seized or returned package and no refund of postage. If you’re unsure, check the destination’s listing in the International Mail Manual or ask at a Post Office before buying the label.
Which Countries Are Suspended or Restricted?
As of USPS’s October 2, 2026 update, USPS has temporarily suspended international mail acceptance for Afghanistan, Belarus, Bhutan, Cuba, Haiti, Iran, Kiribati, the Republic of Congo, Seychelles, South Sudan, Sudan, Turkmenistan and Yemen, citing a lack of transportation or service disruptions in the destination country. Ukraine and Thailand also carry service alerts.
The USPS alerts page has also carried a notice about mail to Canada during Canada Post labor disruptions. Because these lists change often, check USPS International Service Alerts on the day you ship, especially for Canada and any country with a recent alert.
How Do You Ship a Package Internationally With USPS?
- Check the destination. Confirm the country isn’t suspended and read its IMM listing for weight limits and prohibited items.
- Pack for a longer trip. Use a sturdy corrugated box, cushion each item, and put a copy of both addresses inside.
- Weigh and measure the packed box, then choose a service based on speed, value and tracking needs.
- Complete the customs form online with specific descriptions, values and country of origin.
- Buy and print the label, which combines postage and customs data.
- Hand it to USPS. Drop it at a Post Office or schedule a free USPS pickup, and keep the tracking number.
Shipping to a military address abroad uses domestic services instead; our guide to shipping to a PO Box covers PO Box and APO/FPO addressing basics.
How Can You Save on USPS International Shipping?
The biggest saving comes from buying postage online at commercial prices instead of at the counter. ParcelPath is free, with no subscription or per-label fee, and offers up to 89% off USPS and up to 85% off UPS, so you can compare USPS international services with UPS Worldwide options for the same box.
- Pick the slowest service that meets your deadline. First-Class Package International Service is usually the cheapest for packages under 4 lb with contents up to $400.
- Use Flat Rate for heavy, dense items going to distant countries.
- Combine items into one box instead of several small ones.
- Add Shipsurance coverage through ParcelPath when USPS’s included insurance isn’t enough.
Small businesses that ship abroad regularly can find more ideas in our guide to shipping for small business and our eCommerce shipping hub. To compare low-cost options across carriers, see our guides to the cheapest international shipping rates and the cheapest international shipping options.
Frequently Asked Questions
How long does USPS international shipping take?
USPS lists Priority Mail Express International at 3–5 business days to many major markets and Priority Mail International at 6–10 business days. First-Class Package International Service and First-Class Mail International vary by destination. Customs clearance can add time, and the destination’s postal service handles final delivery.
Does USPS international shipping include tracking?
Priority Mail Express International and Priority Mail International include USPS Tracking, though limits may apply in some countries. First-Class Package International Service has only electronic delivery confirmation to select destinations, and First-Class Mail International has no tracking. Choose a Priority service if you need end-to-end visibility.
What is the weight limit for USPS international shipping?
Priority Mail Express International and Priority Mail International allow up to 70 lb, but many countries set lower limits in their International Mail Manual listings, such as 44 lb to Taiwan or 66 lb to the United Kingdom by Priority Mail International. First-Class Package International Service is capped at 4 lb.
Is Global Express Guaranteed still available from USPS?
No. USPS suspended Global Express Guaranteed on September 29, 2024, so Priority Mail Express International is now USPS’s fastest international option, at 3–5 business days to many major markets. If you need faster, time-definite international delivery, compare UPS Worldwide Express services instead.
Do I need a customs form for USPS international shipping?
Yes, for any package containing goods. USPS asks you to complete customs forms electronically, online or at a Post Office, and requires detailed content descriptions on all international packages. Documents-only First-Class Mail International letters generally don’t need one. Accurate values help the destination assess duties and taxes.
Sources
- USPS: International Mail and Shipping Services
- USPS International Service Alerts
- USPS International Mail Manual 140: International Mail Categories
- USPS IMM Individual Country Listing: Taiwan
- USPS IMM Individual Country Listing: United Kingdom
Related
- USPS International Shipping Calculator — estimate rates by weight and destination before you buy.
- USPS Priority Mail International — flat-rate boxes and 6–10 day transit to about 180 countries.
Part of our USPS Shipping hub.
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