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 1639
SCHEDULED · TYPICAL SCHEDULE
AS 1639 · SAN → TPA
departs 8:32 AM PT · arrives 4:29 PM ET
Forecast issued Wed 3:00 PM ET · 44h before departure
Odds over time
Arrive at TPA more than 15 minutes late?
32%
chance · ±3 pts
+7 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 TPA?
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On time or early
66%
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15–30 min late
16%
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30 min–1 hour late
8%
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1–2 hours late
5%
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Over 2 hours late
3%
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Cancelled
2%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.