AA109 LondonLHR · 10:05 BostonBOS · 12:30
AA109 by American Airlines flies from London (LHR) to Boston (BOS) for the Thu, Oct 22 departure.
departs LHR · on schedule
board checked 6m ago · checking again in 45s
Where the minutes go
last 3 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 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.
How AA109 actually runs
Pro Flight Search has tracked every published board update for AA109 across the LHR and BOS boards: schedule changes, gate pushes and actual clocks. Early read — pattern not clear yet. Only 1 completed leg so far: left noticeably late (~24 min) but landed about 10 min early. Not enough to call it.
The verdict above is that record speaking, so it reflects how AA109 operates rather than what the timetable promises. Numbers refresh as new flights operate.
How this operation is measured
Board log
scheduled → actual, per operationBoard clocks recorded as LHR and BOS published them.
Planning around AA109? Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure
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Pro Flight Search — AA109 London to Boston on-time performance, measured from the LHR and BOS airport boards.
https://proflightsearch.com/flight/AA109
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