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Flight Reliability

AA 4204 · American Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and AA 4204 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

85%
Arrive within 15 minutes
0 min
Average arrival delay
1.7%
Cancelled
9 min early
Median arrival delay

Based on 356 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon90%(52 flights)
  • Tue87%(46 flights)
  • Wed83%(47 flights)
  • Thu71%(48 flights)
  • Fri85%(52 flights)
  • Sat91%(54 flights)
  • Sun84%(50 flights)
On-time by departure window
  • 6–9 AM93%(60 flights)
  • 9 AM–12 PM86%(228 flights)
  • 12–3 PM88%(24 flights)
  • 3–6 PM60%(37 flights)
On-time trend by month
55%
May

Jun 93% → May 55% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202593%30
July 202584%31
August 202597%30
September 202590%30
November 202589%44
December 202562%29
January 202692%62
February 202682%54
March 202679%14
May 202655%20
Departures on time
85%
Diverted
0.3%
Flights flown
349
Months covered
11

Keep nerding

Based on 356 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.