Schedule: FAA flight plans.
SOUTHWEST · FLIGHT WN 3639
SCHEDULED
Today
WN 3639 · PIT → BWI
departs 3:55 PM ET · arrives 5:10 PM ET
Forecast issued Tue 9:00 AM ET · 7h before departure
Odds over time
Arrive at BWI more than 15 minutes late?
7%
chance · ±0 pts
−4 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 BWI?
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On time or early
93%
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15–30 min late
<1%
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30 min–1 hour late
5%
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1–2 hours late
1%
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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%.