Schedule: FAA flight plans.
SOUTHWEST · FLIGHT WN 3821
SCHEDULED
Today
WN 3821 · STL → DAL
departs 8:46 PM CT · arrives 10:29 PM CT
Forecast issued Wed 8:00 AM ET · 14h before departure
Odds over time
Arrive at DAL more than 15 minutes late?
48%
chance · ±2 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 DAL?
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On time or early
48%
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15–30 min late
11%
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30 min–1 hour late
20%
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1–2 hours late
9%
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Over 2 hours late
5%
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Cancelled
7%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.