Schedule: FAA flight plans.
SOUTHWEST · FLIGHT WN 4120
IN THE AIR (OFF 12:33 AM MT, ETA 5:29 AM ET)
Today
WN 4120 · DEN → BWI
took off 12:33 AM MT · expected to land 5:29 AM ET (scheduled 12:23 AM MT → 5:55 AM ET)
Forecast issued Tue 2:00 AM ET · 0h before departure
Odds over time
Arrive at BWI more than 15 minutes late?
<1%
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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-
-
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How late will it get to BWI?
LIVE
-
On time or early
100%
-
15–30 min late
<1%
-
30 min–1 hour late
0%
-
1–2 hours late
0%
-
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.