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Flight Reliability

AA 4603 · American Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and AA 4603 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

74%
Arrive within 15 minutes
8 min
Average arrival delay
4.1%
Cancelled
9 min early
Median arrival delay

Based on 343 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon64%(45 flights)
  • Tue84%(50 flights)
  • Wed71%(49 flights)
  • Thu77%(48 flights)
  • Fri76%(49 flights)
  • Sat81%(41 flights)
  • Sun67%(46 flights)
On-time by departure window
  • 6–9 AM90%(19 flights)
  • 9 AM–12 PM89%(44 flights)
  • 3–6 PM73%(30 flights)
  • 6–9 PM71%(235 flights)
On-time trend by month
90%
May

Jun 65% → May 90% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202565%26
July 202552%27
August 202569%29
September 202583%30
October 202581%31
November 202577%26
December 202563%27
January 202665%26
February 202676%25
March 202682%22
April 202686%28
May 202690%31
Departures on time
72%
Diverted
0.3%
Flights flown
328
Months covered
12

Keep nerding

Based on 343 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.