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Flight Reliability

AA 5539 · American Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and AA 5539 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

75%
Arrive within 15 minutes
12 min
Average arrival delay
2.5%
Cancelled
8 min early
Median arrival delay

Based on 436 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon73%(62 flights)
  • Tue86%(64 flights)
  • Wed73%(62 flights)
  • Thu74%(58 flights)
  • Fri76%(62 flights)
  • Sat70%(57 flights)
  • Sun76%(58 flights)
On-time by departure window
  • 6–9 AM78%(236 flights)
  • 9 AM–12 PM79%(38 flights)
  • 12–3 PM76%(89 flights)
  • 3–6 PM—(4 flights)
  • 6–9 PM61%(56 flights)
On-time trend by month
66%
May

Jun 61% → May 66% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202561%59
July 202597%61
August 202568%59
October 2025100%11
November 202571%55
December 202561%31
January 202693%27
February 202685%27
March 202681%31
April 202666%29
May 202666%29
Departures on time
76%
Diverted
0.5%
Flights flown
423
Months covered
12

Keep nerding

Based on 436 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.