Schedule: FAA flight plans.
JETBLUE · FLIGHT B6 1621
SCHEDULED
Today
B6 1621 · LHR → BOS
departs 8:35 AM BST · arrives 11:57 AM ET
Forecast issued Sat 11:00 PM ET · 5h before departure
Odds over time
Arrive at BOS more than 15 minutes late?
18%
chance · ±0 pts
+1 pt · 24h
HOW SURE WE ARE
High. The odds now come mostly from live FAA and airport data.
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How late will it get to BOS?
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On time or early
87%
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15–30 min late
3%
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30 min–1 hour late
4%
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1–2 hours late
3%
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Over 2 hours late
3%
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Cancelled
<1%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.