Usps Postal Rates 2024 Media Mail Rates. Explore the usps postage rate shifts for postcards, flats, and letter sizes in 2024, and optimize your mailing strategies accordingly to save costs. The changes would raise shipping services prices approximately 3.2 percent for priority mail and priority.

Usps ground advantage prices would increase by 5.4 percent, priority mail service prices would increase by 5.7 percent, and priority mail express service prices would. Up to $100 for nonnegotiable.