Schedule: FAA flight plans.
SOUTHWEST · FLIGHT WN 4999
SCHEDULED
Today
WN 4999 · BWI → DTW
departs 7:32 PM ET · arrives 9:04 PM ET
Forecast issued Tue 3:00 PM ET · 4h before departure
Odds over time
Arrive at DTW more than 15 minutes late?
27%
chance · ±1 pts
−8 pts · 24h
HOW SURE WE ARE
High. The odds now come mostly from live FAA and airport data.
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How late will it get to DTW?
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On time or early
72%
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15–30 min late
14%
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30 min–1 hour late
7%
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1–2 hours late
5%
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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%.