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 391
SCHEDULED · TYPICAL SCHEDULE
B6 391 · BOS → TPA
departs 4:19 PM ET · arrives 7:38 PM ET
Forecast issued Tue 11:00 PM ET · 65h before departure
Odds over time
Arrive at TPA more than 15 minutes late?
45%
chance · ±4 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
54%
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15–30 min late
7%
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30 min–1 hour late
20%
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1–2 hours late
10%
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Over 2 hours late
6%
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Cancelled
2%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.