AA4540 WashingtonDCA · 13:00 HalifaxYHZ
AA4540 by American Airlines flies from Washington (DCA) to Halifax (YHZ).
scheduled from DCA
The route today
live boardsTomorrow at Washington
ForecastFri 6 Nov, local date
Forecast: GateWeather · incl. data from ECMWF (CC BY 4.0, modified) · Expected values for tomorrow from a forecast model, kept apart from today's measured figures.
When it flies
scheduled departuresEach mark is a scheduled departure at its origin-local time. Today is highlighted.
How AA4540 actually runs
Pro Flight Search has tracked every published board update for AA4540 across the DCA and YHZ boards: schedule changes, gate pushes and actual clocks. Early read: no clear pattern yet. Only 2 completed legs so far: departed +47 min. Not enough to call it.
The verdict above is that record speaking, so it reflects how AA4540 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: N111HQ, N428YX.
Board clocks recorded as DCA and YHZ published them.
Planning around AA4540? Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure
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Pro Flight Search: AA4540 Washington to Halifax on-time performance, measured from the DCA and YHZ airport boards.
https://proflightsearch.com/flight/AA4540
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