How often are ATL to MIA flights on time?

Flights from Atlanta (ATL) to Miami (MIA) arrive on time 81% of the time across 40,152 flights of official data.

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

American Airlines has the best on-time record on this route at 83% across 11,955 flights.

Route reliability

Flights from Atlanta to Miami arrive on time 81% of the time across 40,152 flights. Here’s how each airline really performs.

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On-time rate

40,152 flights

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

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Nonstop vs. Connecting Flights: The Reliability Trade-off

A stop multiplies the ways a trip can break. When it's worth it — and how to de-risk it.

Do Morning Flights Really Have Fewer Delays?

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Are Some Airlines Really More Reliable Than Others?

The reliability gap between airlines is real — here's what actually drives it.

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