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Flight Reliability

AA 3509 · American Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and AA 3509 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

87%
Arrive within 15 minutes
0 min
Average arrival delay
1.4%
Cancelled
9 min early
Median arrival delay

Based on 587 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon86%(85 flights)
  • Tue89%(82 flights)
  • Wed86%(86 flights)
  • Thu82%(82 flights)
  • Fri93%(81 flights)
  • Sat83%(78 flights)
  • Sun89%(84 flights)
On-time by departure window
  • 3–6 AM100%(11 flights)
  • 6–9 AM89%(212 flights)
  • 9 AM–12 PM87%(226 flights)
  • 12–3 PM87%(75 flights)
  • 6–9 PM62%(21 flights)
  • 9 PM–12 AM88%(33 flights)
On-time trend by month
92%
May

Jun 88% → May 92% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202588%33
July 202590%30
August 202568%25
September 202586%29
October 202584%57
November 202592%59
December 202582%62
January 202682%56
February 202686%56
March 202690%61
April 202693%59
May 202692%51
Departures on time
90%
Diverted
0.2%
Flights flown
578
Months covered
12

Keep nerding

Based on 587 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.