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Flight Reliability

AA 5521 · American Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and AA 5521 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
6 min
Average arrival delay
3.2%
Cancelled
11 min early
Median arrival delay

Based on 249 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon88%(33 flights)
  • Tue85%(34 flights)
  • Wed77%(35 flights)
  • Thu75%(36 flights)
  • Fri86%(35 flights)
  • Sat80%(35 flights)
  • Sun75%(32 flights)
On-time by departure window
  • 6–9 AM84%(126 flights)
  • 9 AM–12 PM90%(62 flights)
  • 12–3 PM64%(11 flights)
  • 9 PM–12 AM61%(41 flights)
On-time trend by month
63%
May

Jul 82% → May 63% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
July 202582%27
November 202586%29
December 202581%31
January 202689%26
February 202688%25
March 202697%29
April 202668%28
May 202663%41
Departures on time
83%
Diverted
0.4%
Flights flown
240
Months covered
9

Keep nerding

Based on 249 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.