DL4121 AustinAUS · 16:59 McAllenMFE
DL4121 by Delta Air Lines flies from Austin (AUS) to McAllen (MFE).
scheduled from AUS
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 operation0 cancelled · 5 operations tracked
The route today
live boardsTomorrow at Austin
ForecastMon 16 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 Austin to McAllen flights today
same route · Delta Air LinesIf DL4121 is cancelled, these are the other Delta Air Lines nonstop flights from Austin to McAllen on the same day, with scheduled departure times in AUS 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 DL4121 actually runs
Pro Flight Search has tracked every published board update for DL4121 across the AUS and MFE boards: schedule changes, gate pushes and actual clocks. Usually departs ~50 min late. Based on 5 confirmed departures · 1/5 within 15 min of schedule.
The verdict above is that record speaking, so it reflects how DL4121 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: N240SY, N614CZ, N610CZ.
Board clocks recorded as AUS and MFE published them.
Planning around DL4121? 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: DL4121 Austin to McAllen on-time performance, measured from the AUS and MFE airport boards.
https://proflightsearch.com/flight/DL4121
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