How often are ATL to MIA flights on time?

Flights from Atlanta (ATL) to Miami (MIA) arrive on time 81% of the time across 40,642 flights of official data.

Which airline is most reliable on the ATL to MIA route?

Spirit Airlines has the best on-time record on this route at 83% across 1,710 flights.

Route reliability

Flights from Atlanta to Miami arrive on time 81% of the time across 40,642 flights. Here’s how each airline really performs.

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On-time rate

40,642 flights

On-time = arrived within 15 minutes of schedule, per BTS TranStats. Compare the reverse leg MIA → ATL.

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Score real ATL–MIA flights on reliability, weather, and connection safety — not just price.

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