Shipping to Cambodia from the USA works with both USPS and UPS: USPS Priority Mail International and Priority Mail Express International accept parcels up to 66 pounds, but express (EMS) delivery reaches only Phnom Penh, and Cambodia is not on the USPS international service suspension list (checked October 22, 2026). Parcels for Siem Reap, Battambang or the provinces go by Priority Mail International or First-Class Package International Service, while UPS international services suit time-sensitive or commercial shipments.
This guide explains the USPS and UPS options to Cambodia, realistic transit times, what Cambodia prohibits, and the paperwork that keeps a parcel moving through customs. To price your box, compare live USPS and UPS rates to Cambodia in the ParcelPath rate calculator.
Which USPS and UPS services ship to Cambodia?
USPS passes Cambodia mail to Cambodia Post for final delivery. The USPS International Mail Manual lists these services and limits:
| Service | Max weight | Max size | Coverage and insurance | Best for |
|---|---|---|---|---|
| Priority Mail Express International (EMS) | 66 lb (Flat Rate Envelope 4 lb) | 36 in long, 79 in length + girth | Phnom Penh addresses only; merchandise insurance available | Urgent documents and parcels to the capital |
| Priority Mail International | 66 lb (Medium and Large Flat Rate Boxes 20 lb) | 42 in long, 79 in length + girth | Nationwide; no USPS insurance | Most parcels over 4 lb |
| First-Class Package International Service | 4 lb | Small-packet limits | Nationwide; no dutiable goods | Light documents and non-dutiable items |
Global Express Guaranteed, the USPS service once delivered by a private courier partner, has been suspended to Cambodia since September 29, 2024. UPS international services such as UPS Worldwide Saver and UPS Worldwide Expedited can be quoted to Cambodia, with end-to-end tracking; the services and transit offered depend on the recipient’s city, so enter the full address before you choose.
Through ParcelPath, USPS labels cost up to 89% less than retail and UPS labels up to 85% less, with no subscription, per-label fee or minimum. Our step-by-step guide on how to ship a package covers packing and labeling basics that apply to any international parcel.
How long does shipping to Cambodia take?
USPS’s general standards are 3 to 5 business days for Priority Mail Express International to many major markets and 6 to 10 business days for Priority Mail International. Cambodia is a smaller market with fewer direct flights, so allow for the longer end of those windows, and more for addresses outside Phnom Penh, where Cambodia Post’s onward delivery adds days.
UPS express services are usually the fastest way to reach Phnom Penh. Whatever the carrier, customs clearance is the most common source of delay, and the rainy season from roughly May to October can slow road delivery in the provinces.
What can’t you ship to Cambodia?
USPS lists these items as prohibited in mail to Cambodia:
- coins, banknotes and paper currency
- bearer securities and traveler’s checks
- platinum, gold and silver, whether manufactured or not
- precious stones, jewels, expensive jewelry and other valuable articles
- radioactive materials
Two further rules catch senders out. First-Class Package International Service and First-Class Mail International items to Cambodia may not contain dutiable goods, so anything that could attract duty must go by Priority Mail International, Priority Mail Express International or UPS. And general carrier rules on lithium batteries, aerosols, perfume, alcohol and other hazardous materials still apply. UPS publishes its own prohibited and restricted articles list, and medicines, plants, food and telecom equipment may need approval from the relevant Cambodian ministry.
What customs paperwork does Cambodia require?
Every parcel to Cambodia needs a customs declaration: PS Form 2976-A inside a 2976-E envelope for Priority Mail International, PS Form 2976-B for Priority Mail Express International (merchandise also needs a commercial invoice), and PS Form 2976 for First-Class Package International Service. Online labels generate the combined label and customs form automatically.
- Describe every item. Write “one cotton shirt, one paperback book,” not “personal items.”
- Declare the real value. Cambodia’s General Department of Customs and Excise assesses duty and VAT on declared value, and undervaluing invites inspection.
- Add the recipient’s mobile number and email. Cambodia Post specifically asks for both on the customs declaration so it can arrange delivery.
- Write the address in English. Include the house number, street (often numbered), sangkat, khan and city, with Khmer script added below if you have it.
The recipient normally pays any duty and VAT before collecting the parcel. For commercial shipments, a commercial invoice and, where you claim preferential treatment, a certificate of origin help clearance.
Which shipping method is right for your Cambodia shipment?
The right method depends on size and urgency rather than on the destination:
| Shipment | Recommended method | Why |
|---|---|---|
| Small, non-dutiable item under 4 lb | USPS First-Class Package International Service | Lowest-cost tracked USPS option |
| Gift or goods 4 to 66 lb, anywhere in Cambodia | USPS Priority Mail International | Nationwide delivery through Cambodia Post |
| Urgent parcel to Phnom Penh | USPS Priority Mail Express International or UPS | Fastest options to the capital |
| Business shipment needing door-to-door tracking | UPS Worldwide Saver or Worldwide Expedited | Single-network tracking and customs brokerage |
| Household move or pallets of cargo | Ocean freight via a forwarder to Sihanoukville | Parcel services are not built for container loads |
If you send to more than one Southeast Asian country, our guide to shipping to Asia compares customs rules across the region, and the roundup of shipping services and solutions helps you choose a provider for regular volume. ParcelPath also offers free USPS pickups, so you do not need to queue at the Post Office to send a Priority Mail International box.
Frequently Asked Questions
Does USPS ship to Cambodia?
Yes. USPS accepts Priority Mail Express International, Priority Mail International, First-Class Package International Service and First-Class Mail International to Cambodia, and the country was not on the USPS suspension list as of October 22, 2026. Priority Mail Express International delivers only to Phnom Penh, and Global Express Guaranteed has been suspended since September 29, 2024.
What is the maximum weight for shipping to Cambodia?
USPS Priority Mail International and Priority Mail Express International both accept parcels up to 66 pounds to Cambodia, with a 79-inch limit on length plus girth. Medium and Large Flat Rate Boxes are capped at 20 pounds, Flat Rate Envelopes at 4 pounds, and First-Class Package International Service at 4 pounds. UPS applies its own package limits.
Can I send dutiable goods to Cambodia by First-Class Package International Service?
No. The USPS International Mail Manual says First-Class Package International Service and First-Class Mail International items to Cambodia may not contain dutiable articles. Send goods that could attract duty, including most new merchandise and gifts with commercial value, by Priority Mail International, Priority Mail Express International or a UPS international service instead.
Can I insure a parcel shipped to Cambodia?
USPS merchandise insurance to Cambodia is available only on Priority Mail Express International, which delivers to Phnom Penh. Priority Mail International to Cambodia cannot carry USPS insurance. For valuable shipments elsewhere in the country, use a UPS service with declared value or add third-party cover such as Shipsurance.
