U.S. USPS Ground Advantage vs. Medium Flat Rate: Two Zone 8 Commercial Price Checks
For U.S. Zone 8 commercial postage, Ground Advantage is $1.78 lower at not over 5 lb, while Medium Flat Rate is $4.37 lower at not over 10 lb.
Final U.S. commercial prices for October 4, 2026, through January 17, 2027, produce different lower-price results at the two weight profiles. The comparison does not establish Flat Rate eligibility.
U.S. Zone 8 results at a glance
Source[1]
During the final published-price period from October 4, 2026, through January 17, 2027, the lower listed U.S. commercial postage depends on which of the two weight profiles applies. Ground Advantage is lower at weight not over 5 lb; Medium Flat Rate is lower at weight not over 10 lb.[1]
| Weight profile | Ground Advantage postage | Medium Flat Rate postage | Lower listed price |
|---|---|---|---|
| Not over 5 lb, Zone 8 | $20.24 | $22.02 | Ground Advantage by $1.78[1] |
| Not over 10 lb, Zone 8 | $26.39 | $22.02 | Medium Flat Rate by $4.37[1] |
The separately listed Medium Flat Rate postage is $22.02 in both selected U.S. profiles, while Ground Advantage changes from $20.24 at weight not over 5 lb to $26.39 at weight not over 10 lb. That produces the different lower-price result in each row.[1]
Apply the matching weight profile
Do not carry one row’s result into the other weight profile. Identify the applicable weight bracket for the shipment, then compare the available postage choices under the same pricing basis.
Limits of these U.S. price checks
Source[1]
The Medium Flat Rate amount is separately listed, and these comparisons do not establish shipment eligibility for that option.[1]
The U.S. published-postage sample does not infer negotiated prices, cubic rates, extra fees, or delivery commitments.[1]
- Confirm that the item and packaging qualify for the option you intend to use.
- Price the actual shipment with all applicable charges and account-specific rates.
- Evaluate delivery requirements separately before making the final service choice.
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 November 6, 2026
Supports: The final U.S. USPS domestic published-postage sample is effective from October 4, 2026, through January 17, 2027.
Data as of 2026-11-06
Supports: For U.S. commercial postage effective October 4, 2026, through January 17, 2027, USPS Ground Advantage at weight not over 5 lb in Zone 8 is $20.24, while separately listed Priority Mail Medium Flat Rate Boxes postage is $22.02, with no shipment eligibility inferred.
Data as of 2026-11-06
Supports: For the U.S. commercial Zone 8 weight-not-over-5-lb comparison effective October 4, 2026, through January 17, 2027, USPS Ground Advantage is $1.78 lower than the separately listed Priority Mail Medium Flat Rate price.
Data as of 2026-11-06
Supports: For U.S. commercial postage effective October 4, 2026, through January 17, 2027, USPS Ground Advantage at weight not over 10 lb in Zone 8 is $26.39, while separately listed Priority Mail Medium Flat Rate Boxes postage is $22.02, with no shipment eligibility inferred.
Data as of 2026-11-06
Supports: For the U.S. commercial Zone 8 weight-not-over-10-lb comparison effective October 4, 2026, through January 17, 2027, the separately listed Priority Mail Medium Flat Rate price is $4.37 lower than USPS Ground Advantage.
Data as of 2026-11-06
Supports: For this U.S. published-postage sample, negotiated prices, cubic rates, extra fees, and delivery commitments are not inferred.
Data as of 2026-11-06