AA4780 ChicagoORD · 11:58 Grand RapidsGRR · 14:12
AA4780 by American Airlines flies from Chicago (ORD) to Grand Rapids (GRR) for the Sun, Oct 18 departure.
en route from ORD to GRR
board checked 43m ago · checking again in 45s
Board estimate · gate and arrival times. Off blocks 11:49 · typical taxi-out at ORD ≈ 7.6 min.
The route today
live boardsWeather lens
Delay & cancellation outlook for this flight
Measured, 90-day sampleConditions at ORD and GRR 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 Chicago to Grand Rapids flights today
same route · American AirlinesIf AA4780 is cancelled, these are the other American Airlines nonstop flights from Chicago to Grand Rapids on the same day, with scheduled departure times in ORD local time. Most flights posting a delay still operate — rebooking usually only beats a very large posted delay. Every airline on this route →
How AA4780 actually runs
Pro Flight Search has tracked every published board update for AA4780 across the ORD and GRR boards: schedule changes, gate pushes and actual clocks. Early read — pattern not clear yet. Only 2 completed legs so far: landed -8 min. Not enough to call it.
The verdict above is that record speaking, so it reflects how AA4780 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: N120HQ.
Board clocks recorded as ORD and GRR published them.
Planning around AA4780? Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure
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Pro Flight Search — AA4780 Chicago to Grand Rapids on-time performance, measured from the ORD and GRR airport boards.
https://proflightsearch.com/flight/AA4780
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