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Flight Reliability

AA 4045 · American Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and AA 4045 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

83%
Arrive within 15 minutes
3 min
Average arrival delay
3.4%
Cancelled
7 min early
Median arrival delay

Based on 179 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon74%(27 flights)
  • Tue75%(24 flights)
  • Wed100%(22 flights)
  • Thu72%(25 flights)
  • Fri85%(20 flights)
  • Sat90%(30 flights)
  • Sun88%(25 flights)
On-time by departure window
  • 6–9 AM—(4 flights)
  • 9 AM–12 PM94%(36 flights)
  • 6–9 PM78%(54 flights)
  • 9 PM–12 AM81%(79 flights)
On-time trend by month
86%
May

Aug 89% → May 86% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
August 202589%27
September 202562%13
October 202570%27
January 202693%30
February 202691%11
April 202691%23
May 202686%21
Departures on time
83%
Diverted
0%
Flights flown
173
Months covered
11

Keep nerding

Based on 179 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.