Schedule: FAA flight plans.
ALASKA · FLIGHT AS 521
SCHEDULED
AS 521 · SEA → SJC
departs 4:32 PM PT · arrives 6:36 PM PT
Forecast issued Thu 10:00 PM ET · 2h after departure
Odds over time
Arrive at SJC more than 15 minutes late?
22%
chance · ±0 pts
+0 pts · 24h
HOW SURE WE ARE
Very high. The odds now come almost entirely from live conditions.
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How late will it get to SJC?
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On time or early
78%
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15–30 min late
11%
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30 min–1 hour late
7%
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1–2 hours late
3%
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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%.