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Same-day shipping in Miami: cost, speed, and the ROI math

How South Florida brands are unlocking same-day delivery economics without breaking margins. The numbers behind the promise.

iL
iLogistics Editorial8 min · December 8, 2025

What 'same-day' actually means

Inside the industry, 'same-day' breaks into three flavors: (1) same-day shipping (order in by 2pm, leaves the warehouse that day), (2) same-day delivery within a metro (order in by 11am, arrives by 8pm), and (3) next-day delivery (most brands' real product). Miami's logistics geography makes #1 and #3 economical; #2 is hard outside a 30-mile radius.

The cost delta

Standard 5-day shipping from Miami to ATL: about $7.20. Same-day cutoff plus 2-day carrier: about $9.10. The ~$1.90 delta gets paid back when conversion lifts 14%+ — which it does, on AOVs above $35.

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