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 1501
SCHEDULED · TYPICAL SCHEDULE
Tomorrow
WN 1501 · DEN → BWI
departs 11:50 PM MT · arrives 5:15 AM ET
Forecast issued Thu 2:00 PM ET · 36h before departure
Odds over time
Arrive at BWI more than 15 minutes late?
26%
chance · ±7 pts
+0 pts · 24h
HOW SURE WE ARE
Moderate. The odds now blend history with early weather forecasts.
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How late will it get to BWI?
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On time or early
73%
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15–30 min late
13%
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30 min–1 hour late
8%
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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%.