AA4321 Raleigh/DurhamRDU MiamiMIA
AA4321 by American Airlines flies from Raleigh/Durham (RDU) to Miami (MIA).
scheduled from RDU
The route today
live boardsWeather lens
Delay & cancellation outlook for this flight
Measured, 90-day sampleConditions at RDU and MIA 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 Raleigh/Durham to Miami flights today
same route · American AirlinesIf AA4321 is cancelled, these are the other American Airlines nonstop flights from Raleigh/Durham to Miami on the same day, with scheduled departure times in RDU local time. Most flights posting a delay still operate — rebooking usually only beats a very large posted delay. Every airline on this route →
How AA4321 actually runs
Pro Flight Search has tracked every published board update for AA4321 across the RDU and MIA boards: schedule changes, gate pushes and actual clocks. Combined risk score: 50.0/100. Based on airport operations, weather, and cached board history at RDU and MIA.
The verdict above is that record speaking, so it reflects how AA4321 operates rather than what the timetable promises. Numbers refresh as new flights operate.
Planning around AA4321? Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure
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Pro Flight Search — AA4321 Raleigh/Durham to Miami on-time performance, measured from the RDU and MIA airport boards.
https://proflightsearch.com/flight/AA4321
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