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Flight Reliability

AA 4478 · American Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and AA 4478 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

81%
Arrive within 15 minutes
6 min
Average arrival delay
3.7%
Cancelled
9 min early
Median arrival delay

Based on 382 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon86%(50 flights)
  • Tue73%(52 flights)
  • Wed79%(53 flights)
  • Thu87%(54 flights)
  • Fri81%(57 flights)
  • Sat76%(49 flights)
  • Sun83%(53 flights)
On-time by departure window
  • 3–6 AM96%(24 flights)
  • 6–9 AM83%(81 flights)
  • 9 AM–12 PM76%(79 flights)
  • 12–3 PM89%(28 flights)
  • 3–6 PM78%(109 flights)
  • 6–9 PM75%(36 flights)
  • 9 PM–12 AM91%(11 flights)
On-time trend by month
83%
May

Jun 86% → May 83% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202586%29
August 202581%26
September 202567%30
October 202597%30
November 202583%58
December 202553%17
February 202680%25
March 202681%32
April 202680%51
May 202683%57
Departures on time
83%
Diverted
0%
Flights flown
368
Months covered
12

Keep nerding

Based on 382 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.