Schedule: FAA flight plans.
SOUTHWEST · FLIGHT WN 3657
IN THE AIR (OFF 11:32 AM MT, ETA 5:07 PM ET)
Today
WN 3657 · SLC → BWI
took off 11:32 AM MT · expected to land 5:07 PM ET (scheduled 11:10 AM MT → 5:17 PM ET)
Forecast issued Wed 1:00 PM ET · 0h before departure
Odds over time
Arrive at BWI more than 15 minutes late?
2%
chance · ±0 pts
−2 pts · 24h
HOW SURE WE ARE
Very high. The odds now come almost entirely from live conditions.
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How late will it get to BWI?
LIVE
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On time or early
98%
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15–30 min late
2%
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30 min–1 hour late
<1%
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1–2 hours late
0%
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Over 2 hours late
0%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%; while it’s in the air they come from the FAA’s arrival estimate.