B6861 BostonBOS · 11:10 San JuanSJU · 15:14
B6861 by JetBlue Airways flies from Boston (BOS) to San Juan (SJU) for the Sun, Oct 18 departure.
arrived at SJU · 7 min late
Where the minutes go
last 4 operations · gate push → arrivalThe bar is how late it left the gate; the ring is where it actually arrived. Board clocks, not estimates.
The route today
live boardsWeather lens
Delay & cancellation outlook for this flight
Measured, 90-day sampleConditions at BOS and SJU are near their clear-air norm right now, so this reflects the route's recent baseline rather than a weather penalty. For this route and airline, under conditions like today's, over the last 90 days.
Pro Flight Search tracking, 90 days · the weather × delay correlation study → · live weather risk by airport →
When it flies
scheduled departuresEach mark is a scheduled departure at its origin-local time. Today is highlighted.
Other Boston to San Juan flights today
same route · JetBlue AirwaysIf B6861 is cancelled, these are the other JetBlue Airways nonstop flights from Boston to San Juan on the same day, with scheduled departure times in BOS local time. Most flights posting a delay still operate — rebooking usually only beats a very large posted delay. Every airline on this route →
How B6861 actually runs
Pro Flight Search has tracked every published board update for B6861 across the BOS and SJU boards: schedule changes, gate pushes and actual clocks. Usually lands ~154 min late. Based on 4 confirmed landings · 1/4 within 15 min of schedule.
The verdict above is that record speaking, so it reflects how B6861 operates rather than what the timetable promises. Numbers refresh as new flights operate.
How this operation is measured
Board log
scheduled → actual, per operationAircraft
Recent tails: N903JB, N972JT, N905JB.
Board clocks recorded as BOS and SJU published them.
Planning around B6861? Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure
Journalists, bloggers, and researchers may cite this page with attribution and a link to Pro Flight Search.
Pro Flight Search — B6861 Boston to San Juan on-time performance, measured from the BOS and SJU airport boards.
https://proflightsearch.com/flight/B6861
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