Schedule: a typical Friday (the flights of Jul 31, 2026, re-dated). Real flights replace these once the FAA publishes them, usually about a day ahead.
SOUTHWEST · FLIGHT WN 4049
SCHEDULED · TYPICAL SCHEDULE
Tomorrow
WN 4049 · TPA → STL
departs 10:15 AM ET · arrives 11:40 AM CT
Forecast issued Thu 3:00 PM ET · 19h before departure
Odds over time
Arrive at STL more than 15 minutes late?
20%
chance · ±3 pts
+3 pts · 24h
HOW SURE WE ARE
Good. The odds now lean mostly on firmed-up weather forecasts.
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How late will it get to STL?
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On time or early
79%
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15–30 min late
8%
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30 min–1 hour late
7%
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1–2 hours late
4%
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Over 2 hours late
<1%
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Cancelled
<1%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.