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Flight Reliability

AA 5439 · American Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and AA 5439 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

76%
Arrive within 15 minutes
12 min
Average arrival delay
2.4%
Cancelled
8 min early
Median arrival delay

Based on 418 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon79%(61 flights)
  • Tue70%(59 flights)
  • Wed79%(56 flights)
  • Thu66%(61 flights)
  • Fri86%(58 flights)
  • Sat74%(46 flights)
  • Sun79%(66 flights)
On-time by departure window
  • 6–9 AM87%(94 flights)
  • 9 AM–12 PM69%(88 flights)
  • 12–3 PM77%(164 flights)
  • 3–6 PM58%(12 flights)
  • 6–9 PM65%(49 flights)
On-time trend by month
47%
May

Jun 67% → May 47% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202567%33
July 202571%31
August 202557%28
October 202567%54
November 202590%58
December 202574%42
January 202687%31
February 202685%39
March 202681%53
April 2026100%10
May 202647%19
Departures on time
76%
Diverted
0.2%
Flights flown
407
Months covered
12

Keep nerding

Based on 418 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.