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Flight Reliability

AA 4439 · American Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and AA 4439 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

89%
Arrive within 15 minutes
3 min early
Average arrival delay
2.3%
Cancelled
10 min early
Median arrival delay

Based on 346 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon94%(49 flights)
  • Tue83%(48 flights)
  • Wed96%(45 flights)
  • Thu87%(47 flights)
  • Fri78%(51 flights)
  • Sat96%(50 flights)
  • Sun87%(47 flights)
On-time by departure window
  • 3–6 AM97%(33 flights)
  • 6–9 AM92%(153 flights)
  • 9 AM–12 PM92%(118 flights)
  • 12–3 PM—(5 flights)
  • 3–6 PM44%(25 flights)
  • 6–9 PM—(2 flights)
  • 9 PM–12 AM—(1 flights)
On-time trend by month
85%
May

Jun 94% → May 85% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202594%16
July 202596%25
August 202598%54
September 202591%32
October 202587%15
November 202550%22
December 202571%17
January 2026100%10
February 202670%27
March 202698%59
April 202697%33
May 202685%27
Departures on time
91%
Diverted
0.3%
Flights flown
337
Months covered
12

Keep nerding

Based on 346 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.