B68121 LondonLHR BostonBOS
B68121 by JetBlue Airways flies from London (LHR) to Boston (BOS).
scheduled from LHR
The route today
live boardsWeather lens
Delay & cancellation outlook for this flight
Measured, 90-day sampleConditions at LHR and BOS 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 London to Boston flights today
same route · JetBlue AirwaysIf B68121 is cancelled, this is the other JetBlue Airways nonstop flight from London to Boston on the same day, with scheduled departure times in LHR local time. Most flights posting a delay still operate — rebooking usually only beats a very large posted delay. Every airline on this route →
How B68121 actually runs
Pro Flight Search has tracked every published board update for B68121 across the LHR and BOS boards: schedule changes, gate pushes and actual clocks. Combined risk score: 50.0/100. Based on airport operations, weather, and cached board history at LHR and BOS.
The verdict above is that record speaking, so it reflects how B68121 operates rather than what the timetable promises. Numbers refresh as new flights operate.
Planning around B68121? Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure
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Pro Flight Search — B68121 London to Boston on-time performance, measured from the LHR and BOS airport boards.
https://proflightsearch.com/flight/B68121
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