Schedule: FAA flight plans.
SOUTHWEST · FLIGHT WN 3959
DELAYED: NOW PLANNED TO TAKE OFF 10:19 PM PT (15 MIN LATER THAN FIRST FILED)
Today
WN 3959 · SMF → GEG
departs 9:50 PM PT · arrives 11:47 PM PT
Forecast issued Sun 6:00 PM ET · 7h before departure
Odds over time
Arrive at GEG more than 15 minutes late?
54%
chance · ±0 pts
+19 pts · 24h
HOW SURE WE ARE
Good. The odds now lean mostly on firmed-up weather forecasts.
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How late will it get to GEG?
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On time or early
54%
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15–30 min late
31%
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30 min–1 hour late
6%
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1–2 hours late
7%
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Over 2 hours late
2%
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Cancelled
<1%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.