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Flight Reliability

AA 5991 · American Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and AA 5991 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

88%
Arrive within 15 minutes
1 min early
Average arrival delay
4.2%
Cancelled
11 min early
Median arrival delay

Based on 475 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon80%(66 flights)
  • Tue94%(63 flights)
  • Wed96%(67 flights)
  • Thu83%(66 flights)
  • Fri91%(66 flights)
  • Sat89%(62 flights)
  • Sun82%(65 flights)
On-time by departure window
  • 3–6 AM89%(54 flights)
  • 6–9 AM—(1 flights)
  • 9 AM–12 PM98%(175 flights)
  • 12–3 PM86%(72 flights)
  • 3–6 PM85%(74 flights)
  • 6–9 PM—(1 flights)
  • 9 PM–12 AM69%(78 flights)
On-time trend by month
92%
May

Jun 58% → May 92% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202558%26
July 202583%29
August 202572%29
September 202590%30
October 202585%27
November 202594%53
December 202584%32
January 202691%56
February 202687%37
March 202690%31
April 2026100%54
May 202692%51
Departures on time
86%
Diverted
0%
Flights flown
455
Months covered
12

Keep nerding

Based on 475 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.