Schedule: FAA flight plans.
SOUTHWEST · FLIGHT WN 3645
SCHEDULED
Today
WN 3645 · BWI → GSP
departs 5:59 PM ET · arrives 7:40 PM ET
Forecast issued Sat 2:00 PM ET · 4h before departure
Odds over time
Arrive at GSP more than 15 minutes late?
35%
chance · ±0 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 GSP?
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On time or early
65%
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15–30 min late
15%
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30 min–1 hour late
12%
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1–2 hours late
6%
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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%.