AA4778 PhiladelphiaPHL · 14:31 HoustonIAH · 13:52
AA4778 by American Airlines flies from Philadelphia (PHL) to Houston (IAH).
scheduled from PHL
The route today
live boardsWeather lens
Delay & cancellation outlook for this flight
Measured, 90-day sampleConditions at PHL 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.
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 Philadelphia to Houston flights today
same route · American AirlinesIf AA4778 is cancelled, these are the other American Airlines nonstop flights from Philadelphia to Houston on the same day, with scheduled departure times in PHL local time. Most flights posting a delay still operate — rebooking usually only beats a very large posted delay. Every airline on this route →
How AA4778 actually runs
Pro Flight Search has tracked every published board update for AA4778 across the PHL and IAH boards: schedule changes, gate pushes and actual clocks. Early read — pattern not clear yet. Only 2 completed legs so far: left about 5 min early but landed about 36 min early. Not enough to call it.
The verdict above is that record speaking, so it reflects how AA4778 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: N129HQ, N124HQ.
Board clocks recorded as PHL and IAH published them.
Planning around AA4778? Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure
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Pro Flight Search — AA4778 Philadelphia to Houston on-time performance, measured from the PHL and IAH airport boards.
https://proflightsearch.com/flight/AA4778
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