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Flight Reliability

AA 4127 · American Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and AA 4127 moved between routes during this period. Numbers below combine all of them, so treat them as background, not a verdict. For a cleaner answer, check the route you are actually flying.

Combined across all its routes

84%
Arrive within 15 minutes
2 min
Average arrival delay
0.4%
Cancelled
8 min early
Median arrival delay

Based on 251 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon92%(38 flights)
  • Tue82%(28 flights)
  • Wed84%(37 flights)
  • Thu72%(36 flights)
  • Fri95%(37 flights)
  • Sat75%(36 flights)
  • Sun84%(37 flights)
On-time by departure window
  • 3–6 AM—(7 flights)
  • 6–9 AM82%(200 flights)
  • 9 AM–12 PM92%(38 flights)
  • 12–3 PM—(4 flights)
On-time trend by month
93%
May

Jun 76% → May 93% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202576%29
July 202584%31
August 202573%30
October 202569%26
November 202580%30
December 202594%17
April 202693%42
May 202693%41
Departures on time
87%
Diverted
0.4%
Flights flown
249
Months covered
9

Keep nerding

Based on 251 historical flights, because apparently we checked. Historical flight data: U.S. Bureau of Transportation Statistics, June 2025 – May 2026. Data through May 2026. How we calculate this.