AA9940 DetroitDTW · 17:34 BuffaloBUF · 17:56
AA9940 by American Airlines flies from Detroit (DTW) to Buffalo (BUF).
scheduled from DTW
The route today
live boardsWeather lens
Delay & cancellation outlook for this flight
Measured, 90-day sampleConditions at DTW and BUF 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 AA9940 actually runs
Pro Flight Search has tracked every published board update for AA9940 across the DTW and BUF boards: schedule changes, gate pushes and actual clocks. Early read — pattern not clear yet. Only 1 completed leg so far: landed +18 min. Not enough to call it.
The verdict above is that record speaking, so it reflects how AA9940 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: N130HQ.
Board clocks recorded as DTW and BUF published them.
Planning around AA9940? Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure
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Pro Flight Search — AA9940 Detroit to Buffalo on-time performance, measured from the DTW and BUF airport boards.
https://proflightsearch.com/flight/AA9940
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