Skip to content
WanderNerd
Check a flight

Flight Reliability

AA 391 · American Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and AA 391 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

57%
Arrive within 15 minutes
39 min
Average arrival delay
2.2%
Cancelled
8 min
Median arrival delay

Based on 273 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon61%(36 flights)
  • Tue76%(42 flights)
  • Wed60%(35 flights)
  • Thu45%(38 flights)
  • Fri61%(38 flights)
  • Sat51%(39 flights)
  • Sun44%(39 flights)
On-time by departure window
  • 3–6 AM91%(32 flights)
  • 12–3 PM55%(11 flights)
  • 3–6 PM72%(61 flights)
  • 6–9 PM45%(163 flights)
On-time trend by month
73%
May

Jun 45% → May 73% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202545%29
July 202538%29
August 202536%31
September 202562%29
October 202548%31
January 202648%25
February 202664%11
March 202688%24
April 202689%26
May 202673%22
Departures on time
54%
Diverted
0%
Flights flown
267
Months covered
12

Keep nerding

Based on 273 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.