How often are PHX to STL flights on time?

Flights from Phoenix (PHX) to St. Louis (STL) arrive on time 83% of the time across 13,122 flights of official data.

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

American Airlines has the best on-time record on this route at 84% across 4,382 flights.

Route reliability

Flights from Phoenix to St. Louis arrive on time 83% of the time across 13,122 flights. Here’s how each airline really performs.

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On-time rate

13,122 flights

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

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

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