Usps Christmas Delivery Deadline 2024. 2024 holiday mailing and shipping dates for items sent to addresses in the contiguous united states (lower 48 states): For prime members, most items will need to be ordered by dec.

2024 holiday mailing and shipping dates for items sent to addresses in the contiguous united states (lower 48 states): Postal service announced its recommended mailing and shipping dates for holiday mail and packages today.