Schedule: a typical Friday (the flights of Jul 31, 2026, re-dated). Real flights replace these once the FAA publishes them, usually about a day ahead.
ALASKA · FLIGHT AS 1559
SCHEDULED · TYPICAL SCHEDULE
AS 1559 · SEA → JNU
departs 7:50 PM PT · arrives 9:22 PM AKDT
Forecast issued Wed 11:00 AM ET · 60h before departure
Odds over time
Arrive at JNU more than 15 minutes late?
30%
chance · ±1 pts
– · 24h
HOW SURE WE ARE
Moderate. The odds now blend history with early weather forecasts.
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How late will it get to JNU?
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On time or early
70%
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15–30 min late
16%
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30 min–1 hour late
9%
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1–2 hours late
4%
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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%.