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Flight Reliability

AA 551 · American Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and AA 551 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

84%
Arrive within 15 minutes
21 min
Average arrival delay
0%
Cancelled
7 min early
Median arrival delay

Based on 216 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon90%(31 flights)
  • Tue81%(31 flights)
  • Wed77%(31 flights)
  • Thu83%(29 flights)
  • Fri94%(31 flights)
  • Sat81%(32 flights)
  • Sun81%(31 flights)
On-time by departure window
  • 3–6 AM—(5 flights)
  • 6–9 AM88%(150 flights)
  • 9 AM–12 PM79%(19 flights)
  • 3–6 PM69%(42 flights)
On-time trend by month
76%
May

Jun 90% → May 76% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202590%30
July 202587%31
August 202577%31
September 202590%29
October 202583%24
December 202592%12
April 202675%24
May 202676%29
Departures on time
86%
Diverted
0%
Flights flown
216
Months covered
10

Keep nerding

Based on 216 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.