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Flight Reliability

AA 3947 · American Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and AA 3947 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

73%
Arrive within 15 minutes
10 min
Average arrival delay
4.1%
Cancelled
1 min early
Median arrival delay

Based on 587 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon68%(85 flights)
  • Tue71%(77 flights)
  • Wed76%(83 flights)
  • Thu67%(82 flights)
  • Fri80%(86 flights)
  • Sat81%(70 flights)
  • Sun68%(79 flights)
On-time by departure window
  • 6–9 AM88%(32 flights)
  • 9 AM–12 PM91%(103 flights)
  • 12–3 PM88%(109 flights)
  • 3–6 PM68%(219 flights)
  • 6–9 PM44%(99 flights)
On-time trend by month
95%
May

Jun 55% → May 95% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202555%49
July 202556%55
August 202555%55
September 202552%54
October 202567%57
November 202587%45
December 202579%34
January 202694%32
February 202697%31
March 202681%53
April 202688%59
May 202695%38
Departures on time
75%
Diverted
0.2%
Flights flown
562
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.