AA678 MiamiMIA · 15:36 HoustonIAH · 17:33
AA678 by American Airlines flies from Miami (MIA) to Houston (IAH) for the Thu, Aug 20 departure.
departs MIA · on schedule
board checked 10m ago · checking again in 45s
The route today
live boardsWeather lens
Delay & cancellation outlook for this flight
Measured, 90-day sampleConditions at MIA and IAH 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.
Under low visibility at MIA, American Airlines has historically cancelled ~14% of flights, vs 1.6% in clear conditions, over the trailing 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 Miami to Houston flights today
same route · American AirlinesIf AA678 is cancelled, these are the other American Airlines nonstop flights from Miami to Houston on the same day, with scheduled departure times in MIA local time. Most flights posting a delay still operate — rebooking usually only beats a very large posted delay. Every airline on this route →
How AA678 actually runs
Pro Flight Search has tracked every published board update for AA678 across the MIA and IAH boards: schedule changes, gate pushes and actual clocks. Early read — pattern not clear yet. Only 1 completed leg so far: left heavily delayed (~101 min) but landed heavily delayed (~64 min). Not enough to call it.
The verdict above is that record speaking, so it reflects how AA678 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: N995NN.
Board clocks recorded as MIA and IAH published them.
Planning around AA678? Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure
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Pro Flight Search — AA678 Miami to Houston on-time performance, measured from the MIA and IAH airport boards.
https://proflightsearch.com/flight/AA678
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