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Flight Reliability

AA 3439 · American Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and AA 3439 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
9 min
Average arrival delay
1.6%
Cancelled
3 min early
Median arrival delay

Based on 447 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon86%(64 flights)
  • Tue80%(59 flights)
  • Wed72%(58 flights)
  • Thu82%(67 flights)
  • Fri73%(62 flights)
  • Sat76%(59 flights)
  • Sun62%(69 flights)
On-time by departure window
  • 3–6 AM96%(28 flights)
  • 6–9 AM73%(11 flights)
  • 9 AM–12 PM73%(11 flights)
  • 12–3 PM67%(167 flights)
  • 3–6 PM80%(44 flights)
  • 6–9 PM81%(123 flights)
  • 9 PM–12 AM80%(54 flights)
On-time trend by month
79%
May

Jun 65% → May 79% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202565%60
July 202571%62
August 202578%36
October 2025100%15
November 202579%28
December 202583%30
January 202675%28
February 202693%28
March 202677%31
April 202668%53
May 202679%58
Departures on time
78%
Diverted
0.4%
Flights flown
438
Months covered
12

Keep nerding

Based on 447 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.