Schedule: FAA flight plans.
SOUTHWEST · FLIGHT WN 4034
SCHEDULED
Today
WN 4034 · SMF → ONT
departs 5:41 PM PT · arrives 7:15 PM PT
Your aircraft is N8301J (B738), coming in as WN 397 from PHX: in the air, landing about 4:45 PM PT, 52 min before departure.
Forecast issued Sat 6:00 PM ET · 3h before departure
Odds over time
Arrive at ONT more than 15 minutes late?
34%
chance · ±0 pts
+1 pt · 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
65%
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15–30 min late
13%
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30 min–1 hour late
16%
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1–2 hours late
2%
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Over 2 hours late
3%
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Cancelled
<1%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.