Does USPS deliver First Class packages on Sunday 2024? The United States Postal Service (USPS) does not deliver regular mail on Sundays, including first-class packages. However, in certain circumstances, such as during the holiday season, they may deliver Priority Mail Express packages on Sunday. If you need a package delivered on a Sunday, you can also consider using a private carrier such as FedEx or UPS, which do offer Sunday delivery for certain services.
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