Two U.S. Priority Mail Retail Zone 8 Price Examples
From October 4, 2026, through January 17, 2027, every listed U.S. retail Flat Rate box price is below weight-based Priority Mail postage in the two Zone 8 examples: packages not over 5 lb and not over 10 lb.
For two U.S. retail Zone 8 examples, the Small, Medium, and Large Flat Rate box prices are each below the applicable weight-based Priority Mail postage during the stated price window.
The U.S. retail price answer for both Zone 8 examples
Source[1]
For a U.S. retail package not over 5 lb in Zone 8, weight-based Priority Mail postage is $39.00. Small, Medium, and Large Flat Rate box postage is $14.65, $25.80, and $36.10, making those prices $24.35, $13.20, and $2.90 lower, respectively, from October 4, 2026, through January 17, 2027.[1]
For a U.S. retail package not over 10 lb in Zone 8, weight-based Priority Mail postage is $63.40. The same three Flat Rate box prices are $48.75, $37.60, and $27.30 lower, respectively, during that price window.[1]
Each dollar difference is calculated by subtracting the applicable Flat Rate box price from the weight-based Priority Mail postage for the corresponding U.S. Zone 8 example.[1]
| Zone 8 weight bracket | Weight-based postage (USD) | Small Flat Rate: price; difference (USD) | Medium Flat Rate: price; difference (USD) | Large Flat Rate: price; difference (USD) |
|---|---|---|---|---|
| Not over 5 lb | $39.00 | $14.65; $24.35 lower | $25.80; $13.20 lower | $36.10; $2.90 lower[1] |
| Not over 10 lb | $63.40 | $14.65; $48.75 lower | $25.80; $37.60 lower | $36.10; $27.30 lower[1] |
How the price relationship changes between the two U.S. examples
Source[1]
Every listed Flat Rate box price is below weight-based postage in both U.S. examples, but the dollar difference changes between them. The narrowest comparison is the Large Flat Rate box for the package not over 5 lb, at $2.90 lower. For the package not over 10 lb, the Large Flat Rate box is $27.30 lower, while the Small box has the largest difference at $48.75 lower.[1]
Build the shortlist around your actual package
- Record the package’s measured weight and destination zone before selecting the matching price comparison.
- Check the item against each candidate box and remove any option that does not physically fit.
- Confirm that the shipment and packaging meet all applicable requirements for each remaining option.
- Compare the final purchase amount for the qualifying options rather than treating the published-postage difference as a guaranteed total difference.
Sources and evidence
1 sourceEach source is tied to a visible claim in the article. Access dates show when BoslogShip last verified the cited page.
- [1]
Official primary source · United States Postal Service
Final U.S. USPS domestic parcel postage: retail and commercial samplePublished September 18, 2026 · Accessed October 25, 2026
Supports: For U.S. Priority Mail Retail from October 4, 2026, through January 17, 2027, published weight-based postage for a package not over 5 lb in Zone 8 is $39.00; published Small, Medium, and Large Flat Rate box postage is $14.65, $25.80, and $36.10, respectively.
Data as of 2026-10-25
Supports: For U.S. Priority Mail Retail from October 4, 2026, through January 17, 2027, published weight-based postage for a package not over 10 lb in Zone 8 is $63.40; published Small, Medium, and Large Flat Rate box postage is $14.65, $25.80, and $36.10, respectively.
Data as of 2026-10-25
Supports: For the U.S. retail package not over 5 lb in Zone 8, Small Flat Rate box postage is $24.35 lower than weight-based Priority Mail postage from October 4, 2026, through January 17, 2027.
Data as of 2026-10-25
Supports: For the U.S. retail package not over 5 lb in Zone 8, Medium Flat Rate box postage is $13.20 lower than weight-based Priority Mail postage from October 4, 2026, through January 17, 2027.
Data as of 2026-10-25
Supports: For the U.S. retail package not over 5 lb in Zone 8, Large Flat Rate box postage is $2.90 lower than weight-based Priority Mail postage from October 4, 2026, through January 17, 2027.
Data as of 2026-10-25
Supports: For the U.S. retail package not over 10 lb in Zone 8, Small Flat Rate box postage is $48.75 lower than weight-based Priority Mail postage from October 4, 2026, through January 17, 2027.
Data as of 2026-10-25
Supports: For the U.S. retail package not over 10 lb in Zone 8, Medium Flat Rate box postage is $37.60 lower than weight-based Priority Mail postage from October 4, 2026, through January 17, 2027.
Data as of 2026-10-25
Supports: For the U.S. retail package not over 10 lb in Zone 8, Large Flat Rate box postage is $27.30 lower than weight-based Priority Mail postage from October 4, 2026, through January 17, 2027.
Data as of 2026-10-25
Supports: For these U.S. published-postage comparisons, the source does not infer shipment eligibility for any listed Priority Mail Flat Rate box.
Data as of 2026-10-25
Supports: The supplied U.S. postage sample does not infer extra fees or delivery commitments.
Data as of 2026-10-25