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Flight Reliability

AA 4666 · American Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and AA 4666 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

79%
Arrive within 15 minutes
6 min
Average arrival delay
3.3%
Cancelled
5 min early
Median arrival delay

Based on 390 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon78%(55 flights)
  • Tue73%(56 flights)
  • Wed79%(57 flights)
  • Thu86%(58 flights)
  • Fri75%(59 flights)
  • Sat84%(49 flights)
  • Sun79%(43 flights)
On-time by departure window
  • 3–6 AM88%(68 flights)
  • 6–9 AM82%(131 flights)
  • 9 AM–12 PM78%(73 flights)
  • 12–3 PM77%(66 flights)
  • 3–6 PM54%(26 flights)
  • 6–9 PM69%(13 flights)
On-time trend by month
98%
May

Jun 84% → May 98% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202584%25
July 202585%27
August 2025100%26
September 202580%10
October 202561%46
November 202596%25
December 202574%23
January 202687%30
February 202668%40
March 202667%52
April 202673%33
May 202698%40
Departures on time
83%
Diverted
0%
Flights flown
377
Months covered
12

Keep nerding

Based on 390 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.