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Flight Reliability

AA 3931 · American Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and AA 3931 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
4 min
Average arrival delay
1.4%
Cancelled
8 min early
Median arrival delay

Based on 295 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon83%(41 flights)
  • Tue87%(38 flights)
  • Wed81%(21 flights)
  • Thu92%(50 flights)
  • Fri85%(40 flights)
  • Sat76%(42 flights)
  • Sun81%(58 flights)
On-time by departure window
  • 6–9 AM93%(53 flights)
  • 9 AM–12 PM100%(10 flights)
  • 12–3 PM81%(130 flights)
  • 3–6 PM81%(97 flights)
On-time trend by month
90%
May

Jun 87% → May 90% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202587%45
July 202581%48
August 202580%10
September 2025100%16
October 202590%30
November 202579%28
December 202570%43
January 202690%10
April 202688%25
May 202690%29
Departures on time
83%
Diverted
0.3%
Flights flown
290
Months covered
12

Keep nerding

Based on 295 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.