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.
DELTA · FLIGHT DL 1166
SCHEDULED · TYPICAL SCHEDULE
DL 1166 · SAT → JFK
departs 12:37 PM CT · arrives 5:55 PM ET
Forecast issued Wed 7:00 PM ET · 43h before departure
Odds over time
Arrive at JFK more than 15 minutes late?
24%
chance · ±3 pts
+6 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 JFK?
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On time or early
75%
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15–30 min late
4%
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30 min–1 hour late
10%
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1–2 hours late
6%
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Over 2 hours late
4%
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Cancelled
1%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.