USPS delivery estimates for mail between Kentucky and South Carolina:
| Service | Estimated Delivery |
|---|---|
| First-Class Mail (letters, flats ≤13 oz) | 2–5 business days |
| Priority Mail | 1–3 business days |
| Priority Mail Express | 1–2 business days (guaranteed) |
| USPS Ground Advantage (replaces Retail Ground) | 2–5 business days |
Variables affecting speed:
For precise estimates: Use the USPS Price Calculator with exact ZIP codes, weight, and dimensions.