Tracked live by the FAA. The scheduled times shown are from a typical Tuesday because the FAA's flight plan was first seen after takeoff.
SKYWEST · FLIGHT OO 3991
LANDED 11:20 PM PT, ~10 MIN LATE
Yesterday
OO 3991 · SFO → SEA
took off 9:42 PM PT · landed 11:20 PM PT (scheduled 8:59 PM PT → 11:17 PM PT)
Forecast issued Tue 10:00 PM ET · 2h before departure
Odds over time
Arrive at SEA more than 15 minutes late?
Not late
chance · ±2 pts
+6 pts · 24h
HOW SURE WE ARE
High. The odds now come mostly from live FAA and airport data.
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How late did it get to SEA?
RESOLVED
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On time or early
✓
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15–30 min late
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30 min–1 hour late
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1–2 hours late
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Over 2 hours late
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Gate arrival compared with the scheduled arrival. The ranges add up to 100%.