Schedule: FAA flight plans.
SOUTHWEST · FLIGHT WN 4034
DELAYED: NOW PLANNED TO TAKE OFF 7:45 PM PT (1 H 6 MIN LATER THAN FIRST FILED)
Today
WN 4034 · SMF → ONT
departs 6:24 PM PT · arrives 8:00 PM PT
Forecast issued Sun 5:00 PM ET · 4h before departure
Odds over time
Arrive at ONT more than 15 minutes late?
100%
chance · ±0 pts
+39 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 ONT?
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On time or early
18%
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15–30 min late
52%
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30 min–1 hour late
0%
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1–2 hours late
22%
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Over 2 hours late
3%
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Cancelled
5%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.