How often are ATL to STL flights on time?

Flights from Atlanta (ATL) to St. Louis (STL) arrive on time 86% of the time across 20,472 flights of official data.

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

Delta Air Lines has the best on-time record on this route at 87% across 13,435 flights.

Route reliability

Flights from Atlanta to St. Louis arrive on time 86% of the time across 20,472 flights. Here’s how each airline really performs.

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On-time rate

20,472 flights

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

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Are Some Airlines Really More Reliable Than Others?

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