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Flight Reliability

AA 603 · American Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and AA 603 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

61%
Arrive within 15 minutes
29 min
Average arrival delay
3.9%
Cancelled
6 min
Median arrival delay

Based on 206 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon66%(29 flights)
  • Tue46%(26 flights)
  • Wed58%(26 flights)
  • Thu66%(29 flights)
  • Fri70%(30 flights)
  • Sat71%(28 flights)
  • Sun47%(30 flights)
On-time by departure window
  • 6–9 AM60%(10 flights)
  • 9 AM–12 PM60%(82 flights)
  • 3–6 PM60%(80 flights)
  • 6–9 PM65%(26 flights)
On-time trend by month
55%
May

Jun 50% → May 55% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202550%26
July 202556%27
August 202570%30
October 202586%21
November 202548%29
December 202553%17
March 202662%21
May 202655%20
Departures on time
69%
Diverted
0%
Flights flown
198
Months covered
10

Keep nerding

Based on 206 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.