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Flight Reliability

AA 4066 · American Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and AA 4066 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

78%
Arrive within 15 minutes
6 min
Average arrival delay
4.3%
Cancelled
4 min early
Median arrival delay

Based on 415 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon76%(58 flights)
  • Tue78%(55 flights)
  • Wed81%(62 flights)
  • Thu74%(53 flights)
  • Fri83%(58 flights)
  • Sat78%(55 flights)
  • Sun76%(54 flights)
On-time by departure window
  • 6–9 AM90%(48 flights)
  • 9 AM–12 PM73%(33 flights)
  • 12–3 PM90%(144 flights)
  • 3–6 PM68%(98 flights)
  • 6–9 PM63%(72 flights)
On-time trend by month
86%
May

Jun 64% → May 86% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202564%53
July 202567%54
August 202571%24
September 202566%29
November 202594%53
December 202571%34
January 202695%42
February 202683%23
March 202663%24
April 202696%26
May 202686%28
Departures on time
78%
Diverted
0.5%
Flights flown
395
Months covered
12

Keep nerding

Based on 415 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.