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.
JETBLUE · FLIGHT B6 678
SCHEDULED · TYPICAL SCHEDULE
B6 678 · JAX → JFK
departs 5:36 PM ET · arrives 8:00 PM ET
Forecast issued Wed 6:00 AM ET · 60h before departure
Odds over time
Arrive at JFK more than 15 minutes late?
37%
chance · ±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 JFK?
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On time or early
62%
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15–30 min late
4%
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30 min–1 hour late
11%
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1–2 hours late
15%
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Over 2 hours late
5%
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Cancelled
2%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.