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Flight Reliability

AA 3959 · American Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and AA 3959 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

79%
Arrive within 15 minutes
5 min
Average arrival delay
2.7%
Cancelled
9 min early
Median arrival delay

Based on 333 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon77%(57 flights)
  • Tue79%(43 flights)
  • Wed83%(40 flights)
  • Thu80%(49 flights)
  • Fri75%(40 flights)
  • Sat85%(41 flights)
  • Sun77%(52 flights)
On-time by departure window
  • 6–9 AM93%(27 flights)
  • 9 AM–12 PM83%(111 flights)
  • 12–3 PM86%(28 flights)
  • 3–6 PM82%(76 flights)
  • 6–9 PM69%(29 flights)
  • 9 PM–12 AM63%(51 flights)
On-time trend by month
90%
May

Jun 62% → May 90% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202562%29
July 202559%27
August 202593%55
September 2025100%26
October 202583%12
November 202577%26
December 202569%13
January 202669%29
February 202679%28
March 202690%29
April 202669%29
May 202690%19
Departures on time
78%
Diverted
0.6%
Flights flown
322
Months covered
12

Keep nerding

Based on 333 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.