Schedule: FAA flight plans.
SOUTHWEST · FLIGHT WN 4877
SCHEDULED
Today
WN 4877 · MEM → HOU
departs 5:51 AM CT · arrives 7:37 AM CT
Your aircraft is N8565Z (B738), coming in as WN 1890 from DEN: landed 11:29 PM CT.
Forecast issued Tue 4:00 AM ET · 3h before departure
Odds over time
Arrive at HOU more than 15 minutes late?
27%
chance · ±0 pts
+2 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 HOU?
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On time or early
89%
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15–30 min late
3%
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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%.