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WanderNerd

Flight Reliability

AA 3109 · American Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and AA 3109 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

85%
Arrive within 15 minutes
1 min
Average arrival delay
2.4%
Cancelled
8 min early
Median arrival delay

Based on 251 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon87%(37 flights)
  • Tue95%(21 flights)
  • Wed80%(39 flights)
  • Thu87%(38 flights)
  • Fri92%(37 flights)
  • Sat83%(36 flights)
  • Sun78%(37 flights)
On-time by departure window
  • 3–6 AM90%(119 flights)
  • 6–9 AM94%(31 flights)
  • 3–6 PM73%(37 flights)
  • 6–9 PM73%(37 flights)
  • 9 PM–12 AM91%(21 flights)
On-time trend by month
56%
May

Oct 91% → May 56% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
October 202591%21
November 202593%29
December 202590%31
January 202685%26
February 202689%28
March 202693%30
April 202689%46
May 202656%34
Departures on time
84%
Diverted
0%
Flights flown
245
Months covered
8

Based on 251 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.