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Flight Reliability

AA 4999 · American Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and AA 4999 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

81%
Arrive within 15 minutes
5 min
Average arrival delay
1.8%
Cancelled
8 min early
Median arrival delay

Based on 510 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon76%(74 flights)
  • Tue82%(73 flights)
  • Wed84%(70 flights)
  • Thu79%(71 flights)
  • Fri83%(72 flights)
  • Sat81%(69 flights)
  • Sun79%(72 flights)
On-time by departure window
  • 6–9 AM91%(44 flights)
  • 12–3 PM80%(451 flights)
  • 6–9 PM—(6 flights)
On-time trend by month
87%
May

Jun 72% → May 87% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202572%29
July 202586%29
August 202583%30
September 202589%27
October 202579%57
November 202571%59
December 202577%62
January 202690%10
February 202677%34
March 202686%59
April 202682%60
May 202687%45
Departures on time
81%
Diverted
0%
Flights flown
501
Months covered
12

Keep nerding

Based on 510 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.