AM421 MiamiMIA · 17:31 Mexico CityMEX · 20:30
AM421 by Aeroméxico flies from Miami (MIA) to Mexico City (MEX) for the Thu, Nov 5 departure.
departs MIA · on schedule
board checked 9m ago · checking again in 45s
Where the minutes go
last 5 operations · gate push → arrivalThe bar is how late it left the gate; the ring is where it actually arrived. Board clocks, not estimates.
The last 30 days
arrival outcome per operationmedian arrival +0 min · 0 cancelled · 5 operations tracked
The route today
live boardsWeather lens
Delay & cancellation outlook for this flight
Measured, 90-day sampleConditions at MIA and MEX are near their clear-air norm right now, so this reflects the route's recent baseline rather than a weather penalty. These figures come from both airports' records 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 →
Tomorrow at Miami
ForecastFri 6 Nov, local date
Forecast: GateWeather · incl. data from ECMWF (CC BY 4.0, modified) · Expected values for tomorrow from a forecast model, kept apart from today's measured figures.
Tomorrow at Mexico City
ForecastFri 6 Nov, local date
Forecast: GateWeather · incl. data from ECMWF (CC BY 4.0, modified) · Expected values for tomorrow from a forecast model, kept apart from today's measured figures.
When it flies
scheduled departuresEach mark is a scheduled departure at its origin-local time. Today is highlighted.
Other Miami to Mexico City flights today
same route · AeroméxicoIf AM421 is cancelled, these are the other Aeroméxico nonstop flights from Miami to Mexico City on the same day, with scheduled departure times in MIA local time. Most flights that show a delay still operate. Rebooking usually helps only when that delay is very large. Every airline on this route →
How AM421 actually runs
Pro Flight Search has tracked every published board update for AM421 across the MIA and MEX boards: schedule changes, gate pushes and actual clocks. Usually lands on time. Based on 5 confirmed landings · 5/5 within 15 min of schedule. Pushes back late but makes up time in the air.
The verdict above is that record speaking, so it reflects how AM421 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: XASGP, N569AM, N469AM, N838AM.
Board clocks recorded as MIA and MEX published them.
Planning around AM421? Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure
Journalists, bloggers, and researchers may cite this page with attribution and a link to Pro Flight Search.
Pro Flight Search: AM421 Miami to Mexico City on-time performance, measured from the MIA and MEX airport boards.
https://proflightsearch.com/flight/AM421
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