How often are LAS to STL flights on time?

Flights from Las Vegas (LAS) to St. Louis (STL) arrive on time 81% of the time across 12,123 flights of official data.

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

Frontier Airlines has the best on-time record on this route at 85% across 2,064 flights.

Route reliability

Flights from Las Vegas to St. Louis arrive on time 81% of the time across 12,123 flights. Here’s how each airline really performs.

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On-time rate

12,123 flights

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

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Do Morning Flights Really Have Fewer Delays?

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Are Some Airlines Really More Reliable Than Others?

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

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