First-Class Mail International Flats - USPS Retail Rate Table

USPS COVID-Related Service Updates!


As of September 3rd, 2021, the USPS has suspended the following international services from the United States to Australia due to recent outbreaks of COVID-19:

  • First-Class Package International Service® (FCPIS®)

  • Commercial ePacket (CeP)

  • International Priority Airmail® (IPA®) packets

  • International Surface Air Lift® (ISAL®) packets

As of October 1st, 2021 the USPS has suspended all services from the United States to New Zealand.

All shipments after this date will be returned to sender.

To avoid a disruption in service, we recommend shipping your Australia and New Zealand packages via UPS or GlobalPost.

For already shipped items, other than Global Express Guarantee® (GXG®), USPS employees will endorse the items as “Mail Service Suspended — Return to Sender” and then place them in the mail stream for return.

Unless otherwise noted, service suspensions to a particular country do not affect delivery of military and diplomatic mail.

What are USPS First-Class Mail International Flats, Retail rates?

First-Class International

First-Class Mail International is one of USPS's premium services. It is well suited to light weight documents. [Learn more about USPS First-Class Mail International].

This is an international service. International mail originates in the United States and is transported to another country. This excludes U.S. territories and military posts destinations (which are considered domestic).

Retail Rates

First-Class Mail International rates vary based on weight and destination ([Country Price Group]), as well as rate class.

This service uses parcel weight to determine postage costs. Costs increase as weight increases.

USPS uses Country Price Groups to calculate shipping rates for international shipments. The shipment destination determines the Country Price Group. [Learn more about Country Price Groups].

Retail pricing is offered directly from the USPS at Post Office retail locations or It does not include discounts on postage prices like those received via ShippingEasy. [Learn more about USPS Retail pricing].


USPS rates changed January 24, 2021. Learn more about 2021 rates.

Compare with First-Class International Flats | Retail

USPS provides a multitude of services and rate classes. Check out these similar services and rates to see how they compare:

2021 Rates: USPS First-Class Mail International Large Envelopes / Flats | Retail


Effective January 24, 2021. Learn more about 2021 rates.

First-Class Mail International Flats | Retail


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