STL (St. Louis) to PBI (West Palm Beach) flights arrive on time 56% of the time. The most reliable airline on this route is Southwest Airlines at 53%. The average delay is 91 minutes. Delays on this route are most often caused by air traffic and busy airspace.
Source: Bureau of Transportation Statistics. Updated March 2026.STL → PBI
STL (St. Louis) to PBI (West Palm Beach)
STL → PBI on-time performance by month
24
25
JanFebMarAprMayJunJulAugSepOctNovDec
Worse
Better
This route is frequently delayed. About 56% of flights arrive on schedule.
Delays on this route are most often caused by air traffic and busy airspace.
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Good to know
Departing from STL
81% on timeTSA is currently ~5 min. Best time: 4 AM (about 5 min).
Arriving at PBI
76% on timeWhen flights into PBI are late, the average delay is 76 minutes. Build buffer if you have ground plans.
If connecting at PBI: TSA is ~5 min right now. Allow at least 60 minutes for a domestic connection.
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Data last updated March 2026. Source: Bureau of Transportation Statistics.