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.
REPUBLIC · FLIGHT YX 4401
SCHEDULED · TYPICAL SCHEDULE
YX 4401 · BOS → JFK
departs 6:01 AM ET · arrives 7:30 AM ET
Forecast issued Tue 5:00 PM ET · 61h before departure
Odds over time
Arrive at JFK more than 15 minutes late?
5%
chance · ±0 pts
+0 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
95%
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15–30 min late
2%
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30 min–1 hour late
<1%
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1–2 hours late
<1%
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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%.