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Flight Reliability

AA 5866 · American Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and AA 5866 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

83%
Arrive within 15 minutes
1 min
Average arrival delay
3.5%
Cancelled
12 min early
Median arrival delay

Based on 515 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon90%(70 flights)
  • Tue80%(76 flights)
  • Wed88%(74 flights)
  • Thu78%(72 flights)
  • Fri79%(72 flights)
  • Sat89%(65 flights)
  • Sun75%(67 flights)
On-time by departure window
  • 3–6 AM93%(53 flights)
  • 6–9 AM—(1 flights)
  • 9 AM–12 PM99%(65 flights)
  • 12–3 PM84%(194 flights)
  • 3–6 PM72%(161 flights)
  • 6–9 PM77%(22 flights)
On-time trend by month
100%
May

Jun 89% → May 100% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202589%36
July 202593%27
August 202596%56
September 2025100%31
October 202578%49
November 202577%52
December 202566%53
January 202671%56
February 202682%51
March 202680%60
April 2026100%14
May 2026100%11
Departures on time
84%
Diverted
0.2%
Flights flown
496
Months covered
12

Keep nerding

Based on 515 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.